Download - Battery Charger Solutions

Battery Charger SolutionsHigh Performance Analog ICs

02.2007

Linear Technology’s high performance battery charger ICs

enable long battery life by providing precision charging

control, constant status monitoring and stringent battery

protection. Proprietary design techniques provide battery

and circuit protection, small solution footprints, faster

charging, 100% standalone operation, improved thermal

performance and high reliability operation.

Each battery chemistry has unique battery-charging require-

ments. Selecting the correct battery charger increases the

operational run time of the end-product by ensuring that

the battery is always optimally charged. This guide contains

the essential technical criteria to easily identify the optimum

battery charging IC for charging single-cell, multiple-cell

and even battery packs, regardless of chemistry.

For information on our latest battery charging products,

visit our website at www.linear.com

Battery Chemistry andNumber of Cells in Series andCharge Current

Battery Chemistry(a color coded guide)

Charging Topology

Design and Application Topics(USB, Smart Battery, etc.)

Selector Guides: Pages 18-19

Block Diagrams: Page 1

Block Diagrams: Page 1

Further Reading: 0

How to Use this GuideIf your search is based on: Start with:

Block Diagrams

Linear Charger

Linear Charger + Regulators

Pulse Charger

Switchmode Monolithic Charger

Switchmode Controller Charger

Switchmode Smart Battery Charger

Batt

VIN Linear Charger

Batt

VOUT3

VOUT2

ToSystemLoads

USB

AC/DC

LinearCharger

andRegulator

Batt

VINPulse

Charger

Batt

VIN

SwitchingMonolithicCharger

Batt

VIN

SwitchingControllerCharger

SmartBatteryCharger

• SPI• SMBUS• I/O

VIN

Batt

NiMH NiCd Nickel 02, 10

Lithium Li-Ion 4.2V/cell (1 and 2 cell)Li-Ion 4.0–4.4V/cell (1 and 2 cell)USBPowerPath™ ControlThermal Regulation/ThermistorCoin/Low Current CellsCharge Monitor/Gas GaugeNo Trickle ChargeDesign and Application Notes

04-050506031009080920

Lithium On-chip Regulators/ComparatorsDesign and Application Notes

0720

Lithium PulseDesign and Application Notes

1320

Lithium Switchmode BuckSwitchmode Buck-BoostSwitchmode Thermistor Li-Ion Charge Termination ICDesign and Applications Notes

14-1513111720

NiMH NiCd

Lead-Acid

Multi-Chemistry

Lithium Switchmode BuckSwitchmode Buck-BoostSwitchmode Thermistor Design and Applications Notes

14-15131120

NiMH NiCd

Lead-Acid

Multi-Chemistry

Lithium Smart Battery Chargers–SBS Design and Applications Notes

11-1220

NiMH NiCd

Lead-Acid

Multi-Chemistry

page

Other Other Battery Charger Related Devices 03, 16, 17

LTC4060

NiMHNiCdUp to 4 Cells

LoadChargeCurrentProgram

4.5 < VIN < 10V

No MicrocontrollerNo Firmware

NiMH & NiCd

NiMH and NiCd Fast Battery Chargers

02

LTC4060: Standalone 2A Linear NiMH/NiCd Fast Battery Charger

LTC4010: High Efficiency 4A Standalone Switchmode Battery Charger

Linear Technology’s nickel battery chargers reduce component count, speed design and allow fast, reliable charging of both NiMH and NiCd chemistry cells.

Part No. Topology

Battery Cells* (series)

Max Charge Current

Input Voltage

Onboard Charge Termination

Integrated Pass Transistor

End-of-Charge Signal

AC Present Signal

Thermistor Interface Package

NiMH / NiCd Battery Chargers–Standalone

LTC4060 Linear 1–4 2A 4.5–10V -dV, t, V, T – I I I DFN-16, TSSOP-16

LTC4010 Synchronous Step Down

1–16 4A 4.5–34V -dV, dT/dt, T, t – I I I TSSOP-16


1–16 4A 4.5–34V -dV, dT/dt, T, t – I I I TSSOP-20

NiMH / NiCd Battery Chargers–Non-Standalone

LT1512 SEPIC 1–18 0.8A 2.4–29V External, µC I – – – SO-8

LT1510 Step Down 1–12 1A 7–29V External, µC I – – – SO-8, SSOP-16, SO-16

LT1513 SEPIC 1–18 1.6A 2.4–29V External, µC I – – – DD Pak, TO-220

LT1769 Step Down 1–12 2A 7–29V External, µC I – – – TSSOP-20, SSOP-28

LT1511 Step Down 1–12 3A 7–29V External, µC I – – – SO-24


4–18 4A 6–28V External, µC – I I – SSOP-28

LT1505 Synchronous Step Down

1–13 8A 6.7–26V External, µC – I – – SSOP-28

NiMH / NiCd Battery Chargers–Smart Chargers

LTC4100 Step Down 1–13 4A 6–28V External, µC, SMBus

– – I I SSOP-24

LTC1759 Step Down 1–13 8A 11–24V External, µC, SMBus

– – I I SSOP-36

LTC1960 Step Down 4–16 8A 6–28V External, µC, SPI

– – – – SSOP-36

*Based on Maximum Cell Voltage of 1.8V

LTC4010

5.5 < VIN < 34V

No MicrocontrollerNo Firmware

Up to 4ABattery Charger

NiMHNiCdUp to 16-Cell

Load

LTC4011: Actual Size, Complete Solution

IDEAL DIODES 03

Part No.Ideal Diode MOSFET

Integrated MOSFET

Max Current

Input Voltage

Forward Voltage

Forward ON Resistance

Reverse Leakage Current

Supply Current Package

Low-Power PowerPath Controllers and Ideal Diode Devices

LTC4411 Single P-channel I 1A 2.6–5.5V 28mV 140mΩ 1µA 35µA ThinSOT™

LTC4413 Dual P-channel I 1.5A 2.5–5.5V 28mV 100mΩ 1µA 20µA DFN-10

LTC4412 Single P-channel – 5A* 2.5–28V 20mV – 3µA 13µA ThinSOT

LTC4412HV Single P-channel – 5A* 2.5–36V 20mV – 3µA 13µA ThinSOT

Part No. Ideal DiodeExternal MOSFET

Max Current Input Voltage Package

High-Power PowerPath Controllers and Ideal Diode Devices

LTC1473 Dual N-channel 5A 4.75–30V SSOP-16

LTC1473L Dual N-channel 5A 2.8–9V SSOP-16

LTC1479 Triple N-channel 5A 6–28V SSOP-36

LTC4350 Single N-channel 15A 1.5–12V SSOP-16

LT4351 Single N-channel 15A 1.2–18V MS-10

*Depends on MOSFET Selection

Battery Chargers with PowerPath Control

LTC4055: USB Power Controller and Li-Ion Battery Charger

Linear Technology’s PowerPath products and architectures allow the load to be powered from both VIN and the battery, ensuring shorter charging times and more flexibility for the portable device designer. They also enable “instant on” in systems with a depleted battery.

LTC4413 vs 1N5817 SchottkyBenefit: Less Heat

VFWD (mV)

2000

1500

1000

500

0

I OU

T (

mA

)

0 300100 200 400

LTC4413

1N5817Schottky

Ideal Diodes

LTC4413: Dual 2.6A, 2.5V to 5.5V Ideal Diodes in 3mm × 3mm DFN

Linear Technology’s Ideal Diode devices provide a low loss, near “ideal” diode function. They feature lower forward voltage drop and reverse leakage current than conventional diodes. This reduces power losses and self-heating, thereby extending battery run time.

POWERPATH CONTROL

Part No.

Max. Charge Current

Input Voltage

RDS (ON) of Ideal Diode

Standby Current

IBAT Drain Current Standalone


Thermal Regulation

Integrated Transistor Package

USB Power Managers and Li-Ion Linear Battery Chargers with PowerPath Control

LTC4055 1.25A 4.3–5.5V 200mΩ 50µA 2.5µA I Timer + C/10

I I QFN-16

LTC4066 1.5A 4.35–5.5V 50mΩ 50µA 2.5µA I Timer + C/x I I QFN-24

LTC4085 1.5A 4.35–5.5V 200mΩ (<50mΩ opt.)

50µA 15µA I Timer + C/10

I I DFN-14

LTC4089/-1 1.5A 4.35–5.5V 215mΩ (<50mΩ opt.)

50µA 15µA I Timer + C/10

I I DFN-22

VBUS

–

+

IN2

WALL

1V

IN1

WallAdapter

OUT

BAT

Input ChargerControl

UVLO

Li-IonBattery

Load

Current LimitControl

Output ChargerControl

Ideal

Li- ION 4 .2V/CELL LINEAR

Li-Ion 4.2V/Cell Linear Battery Chargers

04

LTC4065/A: Standalone Linear Li-Ion Battery Chargers in 2 x 2 DFN

Linear Technology has a vast portfolio of linear Li-Ion 4.2V float voltage battery chargers with a multitude of performance, feature and package options.

Standalone operation eliminates the need for an external micro-controller and associated firmware support for charge termination, thereby greatly simplifying design.

Part No.

Batt.Cells (series)

Max Charge Current

Input Voltage


Integr. Pass Trans.

ICHARGE Monitor


AC Present Signal

Thermal Reg.


Li-Ion 4.2V/Cell Linear Battery Chargers–Standalone

LTC4065 1 0.75A 3.75–5.5V Timer + C/10 I I I – I – DFN-6

LTC4065A 1 0.75A 3.75–5.5V Timer + C/10 I I I I – DFN-6

LTC4069 1 0.75A 3.75–5.5V Timer + C/10 I I I – I DFN-6

LTC4054/L 1 0.8/ 0.15A

4.25–6.5V C/10 I I I I I – ThinSOT

LTC4056 1 0.9A 4.5–6.5V Timer – – I – – – ThinSOT

LTC4068 1 0.95A 4.25–6.5V C/x I I I I I – DFN-8

LTC4058 1 0.95A 4.25–6.5V C/10 I I I I I – DFN-8

LTC4075 LTC4076 LTC4077

1 0.95A 4.3–8V Dual Input USB or Adapter

C/x (USB C/x) C/x (USB C or C/5) C/10 (USB C/x)

I I I

I I I

I I I

I I I

I I I

– – –

DFN-10 DFN-10 DFN-10

LTC4061 1 1A 4.3–8V Timer + C/x I I I I I I DFN-10

LTC4062 1 1A 4.3–8V Timer + C/x I I I – I – DFN-10


LTC4055 1 1A 4.3–5.5V Timer I – I I I I QFN-16

LTC4053 1 1.25A 4.25–6.5V Timer + C/10 I I I I I I MS-10, DFN-10

LTC1733 1 1.5A 4.5–6.5V Timer + C/10 I I I I I I MS-10

LTC4066 1 1.5A 4.35–5.5V Timer + C/x I I I I I I QFN-24

LTC4085 1 1.5A 4.35–5.5V Timer + C/10 I – I I I I DFN-14

LTC4089/-1 1 1.5A 4.35–5.5V Timer + C/10 I – I – I I DFN-22

LTC4050 1 2A 4.5–10V Timer + C/10 – – I I – I MS-10

LTC1731 1, 2 2A 4.5–12V Timer + C/10 – – I – – – MS-8, SO-8

LTC1732 1, 2 2A 4.5–12V Timer + C/10 – – I I – – MS-10, SO-10

LTC4065/ADFN-6

RPROG

VIN3.75V to 5.5V

2mm

Li-Ion

2mm

0.75mm

Li- ION 4 .0V/CELL, 4 .1V/CELL, 4 .4V/CELL LINEAR 05

Li-Ion 4.2V/Cell Linear Battery Chargers–Non-Standalone

Part No.

Batt. Cells (series)

Max Charge Current

Input Voltage

Charge Termination Method


ICHARGE Monitor


AC Present Signal

Thermal Reg.


Li-Ion 4.2V/Cell Linear Battery Chargers–Non-Standalone

LTC1734/L 1 0.7/0.18A 4.55–8V µController – I – – – – ThinSOT

LTC4057 1 0.8A 4.25–6.5V µController I I – – I – ThinSOT

LTC4059 1 0.9A 3.75–8V µController I I – – I – DFN-6

LTC4059A 1 0.9A 3.75–8V µController I I – I I – DFN-6

Li-Ion 4.0V, 4.1V and 4.4V/Cell Linear Battery Chargers

LTC4064: Monolithic Linear Charger for Backup Li-Ion Batteries

Charging Li-Ion cells to lower float voltages (4.0V–4.1V) increases battery cycle life. As a consequence, batteries are not charged to 100% capacity.

4.4V Li-Ion cells allow for higher voltage charging and have approxi-mately 10% higher capacity than conventional 4.2V Li-Ion batteries.

Part No.


Cell Voltage

Max Charge Current Standalone

Charge Termination Method(s)

Integr. Pass Trans.

ICHARGE Monitor


AC Present Signal


Li-Ion 4.0V/Cell, 4.1V/Cell and 4.4V/Cell Linear Battery Chargers

LTC1734 1 4.1V 0.7A – µController – I – – – ThinSOT

LTC4061-4.4 1 4.4V 1A I Timer + C/x I I I I I DFN-10

LTC4064 1 4.0V 1.25A I Timer + C/10 I I I I I MS-10

LTC4089-1 1 4.1V 1.5A I Timer + C/10 I – I – I DFN-22

LTC1731 1, 2 4.1V 2A I Timer + C/10 – – I – – MS-8

LTC1732 1, 2 4.1V 2A I Timer + C/10 – – I I – MS-10

GND

VCC

BAT

TIMER

NTC 1.5k1%

4.7µF

0.1µF

IBAT = 1ASHDN

1-CELLLi-IonBattery

VIN = 5V

VFLOAT = 4VLTC4064PROG

LTC4059: Complete Charge Cycle (800mAh Battery)

TIME (Hours)

700

600

500

400

300

200

100

0

4.4

4.2

4.0

3.8

3.6

3.4

3.2

3.0

CH

AR

GE

CU

RR

EN

T (

mA

)

0 1.50.5 1.0 2.52.0

Constant Current BA

TT

ER

Y V

OLT

AG

E (V

)

Constant Voltage

VCC = 5VRPROG = 2k

LTC4059/A: 900mA Linear Li-Ion Battery Chargers in 2 x 2 DFN


Li- ION 4 .2V/CELL LINEAR

Part No.

Max. Charge Current Input Voltage

Standby Current



Thermal Regulation


USB Compliant Linear Li-Ion 1-Cell Battery Chargers

LTC4065/A/69 0.75A 3.75–5.5V 30µA ±1µA I Timer + C/10 I I DFN-6

LTC4054 0.8A 4.25–6.5V 200µA ±1µA I C/10 I I ThinSOT

LTC4057 0.8A 4.25–6.5V 200µA ±1µA – µController I I ThinSOT

LTC4059/A 0.9A 3.75–8V 25µA ±1µA – µController I I DFN-6

LTC4058 0.95A 4.25–6.5V 200µA ±1µA I C/10 I I DFN-8

LTC4068 0.95A 4.25–6.5V 200µA ±1µA I C/x I I DFN-8

LTC4075 LTC4076 LTC4077

0.95A 4.3–8V Dual Input USB or Adapter

50µA ±1µA I I I


I I I

I I I


LTC4061 1A 4.3–8V 130µA ±1µA I Timer + C/x I I DFN-10

LTC4062 1A 4.3–8V 130µA ±1µA I Timer + C/x I I DFN-10

LTC4064 1A 4.25–6.5V 25µA ±1µA I Timer + C/10 – I MS-10

LTC4053 1.25A 4.25–6.5V 25µA ±1µA I Timer + C/10 I I MS-10, DFN-10

USB COMPLIANT

USB Compliant Battery Chargers

06

LTC4085: USB Power Manager with Ideal Diode Controller and Li-Ion Battery Charger

Linear Technology’s USB compliant battery chargers offer high charge current accuracy for both high-power (500mA) and low-power (100mA) USB systems. They optimize efficiency, minimizing USB power loss.

LTC4075: Dual Input USB/AC Adapter Standalone Linear Li-Ion Battery Charger

Part No.

Max. Charge Current

Input Voltage

RDS (ON) of Ideal Diode

Standby Current



Thermal Regulation



LTC4055 1.25A 4.3–5.5V 200mΩ 50µA 2.5µA I Timer + C/10 I I QFN-16

LTC4066 1.5A 4.35–5.5V 50mΩ 50µA 2.5µA I Timer + C/x I I QFN-24

LTC4085 1.5A 4.35–5.5V 200mΩ (50mΩ opt.)

50µA 15µA I Timer + C/10 I I DFN-14

LTC4089/-1 1.5A 4.35–5.5V 215mΩ (<50mΩ opt.)

50µA 15µA I Timer + C/10 I I DFN-22

GND

IDC ITERM

BATWall

Adapter

USB PortLTC4075

IUSB

DCIN

USBIN Li-Ion

950mA (Wall)500mA (USB)

IN

5V WallAdapter Input

5V(NOM)USB Cable

To LDOsRegs, etc.

Li-IonBattery

LTC4085NTC

<50mΩ Ideal Diode

ACPR

CHRG

GNDPROGTIMER

OUT

GATE

BAT

WALL

ON-CHIP REGULATOR OR COMPARATOR 07

Battery Chargers with On-chip Regulators or Comparators

LTC3455: Dual DC/DC Converter with USB Power Manager and Li-Ion Battery Charger

The addition of on-chip functional blocks such as regulators and comparators to Linear Technology’s USB compliant battery chargers provides a higher level of integration, enabling more compact solutions for today’s feature-rich portable devices.

LTC4063: Standalone Linear Li-Ion Battery Charger and 100mA LDO

Part No.

Max Charge Current

Input Voltage LDO

Switching Regulator(s) Comparator Standalone


Thermal Regulation


Li-Ion Linear Battery Chargers with Onboard Regulator or Comparator

LTC4063 1A 4.3–8V IOUT= 100mA VOUT= 1.2–4.2V

– – I Timer + C/x I I DFN-10

LTC4062 1A 4.3–8V – – IQ= 9µA I Timer + C/x I I DFN-10

LTC3455 1A 4.3–5.5V – IOUT1= 600mA IOUT2= 900mA

– I C/10 I I QFN-16

Part No.

Max. Charge Current

Input Voltage

Ideal Diode

Standby Current



Thermal Regulation


USB Power Manager and Li-Ion Linear Battery Charger with PowerPath Control and Onboard Switching Regulator

LTC3455 1A 4.3–5.5V I 50µA 2.5µA I C/10 I I QFN-24

VMAX is Connected to the Best Available Input Power Source(Wall Adapter, USB or Battery)

Switcher 1

Switcher 2

Hot Swap

USB PowerManager

USB PowerManager

BatteryCharger

Gain Block

VMAX Use to Power OtherDC/DCs and LDOs

5V Wall Adapter

VOUT11.8V Typical (600mA)

VOUT23.3V Typical (900mA)

Hot Swap Output3.3V Typical

USB Power3.9V–5 .3V

Li-Ion Battery3.3V–4.2V

Use for LDO or Low

BatteryIndicator

GND

PROG FB

OUT

BAT

LTC4063

TIMER

VCCVIN4.3V to 8V

VOUT3V Single Cell

Li-IonBattery

< 1A

CHARGE MONITORING / GAS GAUGING

Linear Battery Chargers with Charge Monitoring / Gas Gauging

08

LTC4068: USB Compliant Standalone Linear Li-Ion Battery Charger

Simplify charging and gas gauging with a single IC. Linear Technology offers battery chargers that include an output signal pin with a voltage proportional to the charge current for simple gas gauging (VPROG). For more sophisticated gas gauging, Linear offers the LTC4150.

Part No.


Max Charge Current

Input Voltage



ICHARGE Monitor


AC Present Signal

Thermal Reg.


Li-Ion 4.2V/Cell Linear Battery Chargers–Standalone

LTC1734 1 0.7A 4.55–8V µController – I – – – – ThinSOT

LTC4065 1 0.75A 3.75–5.5V Timer + C/10 I I I – I – DFN-6

LTC4065A 1 0.75A 3.75–5.5V Timer + C/10 I I I I I – DFN-6

LTC4069 1 0.75A 3.75–5.5V Timer + C/10 I I I – I I DFN-6

LTC4057 1 0.8A 4.25–6.5V µController I I – – I – ThinSOT

LTC4059 1 0.9A 3.75–8V µController I I – – I – DFN-6

LTC4059A 1 0.9A 3.75–8V µController I I – I I – DFN-6

LTC4068 1 0.95A 4.25–6.5V C/x I I I I I – DFN-8

LTC4058 1 0.95A 4.25–6.5V C/10 I I I I I – DFN-8

LTC4061 1 1A 4.5–8V Timer + C/x I I I I I I DFN-10


LTC4063 1 1A 4.3–8V Timer + C/x I I – – I – DFN-10

LTC4053 1 1.25A 4.25–6.5V Timer + C/10 I I I I I I MS-10, DFN-10

LTC1733 1 1.5A 4.5–6.5V Timer + C/10 I I I I I I MS-10

Part No.

Sense Voltage Range Sense

Input Voltage

Charge Count Frequency

Shutdown Current

# Li-Ion Cells

# Nickel Cells

Charge Quantity

Charge Polarity Package

Gas Gauge–Coulumb Counter

LTC4150* ±50mV High Side 2.7–8.5V 32.55 Hz/V 1.5µA 1-2 3-6 I I MS-10

*See Page 17.

EN

Single Cell Li-Ion Battery Charger with C/5 Termination

1.65k1µF

VIN4.5V–6.5V

Li-IonBattery

LTC4068-4.2

600mA

CHRG

ACPR

ITERM

825Ω

GND

PROG

VCC BAT


NO TRICKLE CHARGE 09

Low Current / Coin Cell Battery Chargers

LTC4054L: 150mA Standalone Li-Ion Battery Charger for Coin Cells

Linear Technology’s coin cell battery chargers enable highly accurate charging for low-capacity, charge-sensitive cells used in thin, compact devices such as Bluetooth headsets and hearing aids.

Part No.

Charge Current Range Input Voltage Standalone

Charge Termination Method

Thermal Regulation

Integrated Transistor

Charger Type Package

Coin Cell Li-Ion Battery Chargers

LTC4054L 10–150mA 4.25–6.5V I C/10 I I Linear ThinSOT

LTC4059 90–900mA 3.75–8V – µController I I Linear DFN-6

LTC1734L 10–180mA 4.55–8V – µController – – Linear ThinSOT

Li-Ion Linear Battery Chargers with No Trickle Charge

LTC4054X: Standalone, No Trickle Charge Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT

This extended family of linear battery chargers ensures proper system operation and startup for applications with a load current higher than the normal trickle charge current or a battery voltage below the normal trickle charge threshold.

Part No.


Max Charge Current Input Voltage



ICHARGE Monitor


AC Present Signal

Thermal Regulation Package

Li-Ion 4.2V/Cell Linear Battery Chargers–Standalone, Fast Trickle Charge

LTC4054X 1 0.8A 4.25–6.5V C/10 I I I – I ThinSOT

LTC4068X 1 0.95A 4.25–6.5V C/x I I I I I DFN-8

LTC4058X 1 0.95A 4.25–6.5V C/10 I I I I I DFN-8

LTC4075X 1 0.95A 4.3–8V Dual Input USB or Adaper

C/x I I I I I DFN-10

GND

VCC

BAT

1.69k

0.1µF

4.2VLi-IonBattery

VIN 4.5V – 6.5V

90mA

LTC4054L-4.2

PROG

90mA Li-Ion Single Coin Cell Charger

GND

VCC

BAT

1.65k

0.1µF

4.2VLi-IonBattery

VIN 5V – 6.5V

600mA

LTC4054X–4.2

PROG

600mA No Trickle Charge Li-Ion Charger

LOW CURRENT / COIN CELL

THERMAL REGULATION & THERMISTOR INTERFACE

Battery Chargers with Thermal Regulation and/or Thermistor Interface

10

LTC4061: Standalone Linear Li-Ion Battery Charger

Linear Technology’s patented thermal regulation technology maximizes charge current without risking overheating during high-power operation or high ambient temperature conditions.

A thermistor interface allows battery temperature measurement, for temperature-qualified charging.

Part No.


Cell Voltage

Max Charge Current Input Voltage



Thermal Reg.


Li-Ion Linear Battery Chargers–Standalone

LTC4065/A 1 4.2V 0.75A 3.75–5.5V I Timer + C/10 I – DFN-6

LTC4069 1 4.2V 0.75A 3.75–5.5V I Timer + C/10 I I DFN-6

LTC4054/L/X 1 4.2V 0.8A 4.25–6.5V I C/10 I – ThinSOT

LTC4068/X 1 4.2V 0.95A 4.25–6.5V I C/10 I – DFN-8

LTC4058/X 1 4.2V 0.95A 4.25–6.5V I C/x I – DFN-8

LTC4075/X LTC4076 LTC4077

1 4.2V 0.95A 4.3–8V Dual Input USB or Adapter

I I I


I I I

– – –


LTC4061 1 4.2/4.4V 1A 4.5–8V I Timer + C/x I I DFN-10

LTC4062 1 4.2V 1A 4.3–8V I Timer + C/x I – DFN-10

LTC4063 1 4.2V 1A 4.3–8V I Timer + C/x I – DFN-10

LTC4064 1 4.0V 1A 4.25–6.5V I Timer + C/10 I I MS-10

LTC4053 1 4.2V 1.25A 4.25–6.5V I Timer + C/x I I MS-10 DFN-10

LTC1733 1 4.2V 1.5A 4.5–6.5V I Timer + C/10 I I MS-10

LTC4050 1 4.2V 2A 4.5–12V – Timer + C/10 – I MS-10

Li-Ion Linear Battery Chargers–Non-Standalone

LTC4057 1 4.2V 0.8A 4.25–6.5V I µController I – ThinSOT

LTC4059/A 1, 2 4.2V 0.9A 3.75–8V I µController I – DFN-6


LTC4055 1 4.2V 1.25A 4.3–5.5V I Timer + C/10 I I QFN-16

LTC4066 1 4.2V 1.5A 4.35–5.5V I Timer + C/x I I QFN-24

LTC4085 1 4.2V 1.5A 4.35–5.5V I Timer + C/10 I I DFN-14

LTC4089/-1 1 4.2/4.1V 1.5A 4.35–5.5V I Timer + C/10 I I DFN-22

Li-Ion Pulse Battery Chargers–Standalone

LTC1730 1 4.1/4.2V 1A 4.5–12V I Timer + C/10 – I SO-8

NiCd / NiMH Linear Battery Charger–Standalone

LTC4060 1–4 1.5 2A 4.5–10V – T, t, dV – I DFN-16

RNTC10k

RHOT1%

7/8 VCC

1/2 VCC

3/160 VCC

Too Cold

Too Hot

Disable NTC

LTC4064

VCC

NTC

Thermistor Interface

Thermal Regulation

TEMPERATURE (°C)

700

800

900

1000

600

500

400

300

200

100

0

I BA

T (

mA

)

-50 0 50 100-25 25 75

Thermal ControlLoop in Operation


SWITCHMODE & SMART CHARGERS 11

Switchmode and Smart Battery Chargers with Thermistor Interface

LTC4002: Standalone Li-Ion Switchmode Battery Charger

Linear Technology’s switchmode battery chargers utilize small, space-saving inductors to allow efficient charging from high input voltages while delivering high current.

Part No. TopologyVBAT Range

Battery Chemistry

Battery Pack(s)

Max Charge Current

Input Voltage

External MOSFET(s)


Smart Battery Chargers

LTC4100 Switchmode SMBus

7–26V Li-Ion NiCd NiMH Lead-Acid

Single 4A 6–28V Synchronous I SSOP-24



Dual 4A 6–28V Synchronous I TSSOP-48



Single 8A 3–24V Synchronous I SSOP-36

Part No.

# Cells or VBAT Range

Battery Chemistry

Number of Cells (series)


Max* Charge Current

Input Voltage

External MOSFET(s)


Switchmode Battery Chargers

LTC4002 1 or 2 cell Li-Ion 1–2 Timer 4A 4.7–24V P-channel I DFN-10, SO-8

LTC4011 1–16 cells NiCd NiMH 1–16 T, t, dV, dT/dt 4A 4.5–34V Synchronous I TSSOP-20

LTC4010 1–16 cells NiCd NiMH 1–16 T, t, dV, dT/dt 4A 4.5–34V Synchronous I TSSOP-16

LTC4007 3–4 cells Li-Ion 3–4 Timer + C/10 4A 6–28V Synchronous I SSOP-24

LTC4006 2–4 cells Li-Ion 2–4 Timer + C/10 4A 6–28V Synchronous I SSOP-16

LTC4008 3–28V Li-Ion NiCd NiMH Lead-Acid

Chemistry Dependent

µController 4A 6–28V Synchronous I SSOP-20

LTC4001 1 cell Li-Ion 1 Timer + C/x 2A 4–5.5V Synchronous I 4x4 QFN-16

6.8µH

22µF

10µF0.1µF

0.47µF

2.2k

68m

10kNTC

SENSE

GATE

BAT

CHRGLTC4002-4.2

VCC

VIN 5V– 22V

BAT

NTC GND

COMP

2kChargeStatus

T

Li-IonBattery

+ThermistorInterface

1.5A Single Cell Li-ion Battery Charger


SMART BATTERY CHARGERS


12

LTC1760: Dual Smart Battery System Manager

LTC4100: Smart Battery Charger Controller

Linear Technology’s smart battery chargers offer true plug-and- play operation independent of chemistry and cell configuration, built-in safety features, reliable battery detection and automatic charge management.

Part No.VBAT Range

Max Charge Current Standalone

Serial Bus Type

Single or Dual Battery Pack

Float Voltage Accuracy

Safety Limits (V&I)

AC Presence Output

Charger “ON” Status


SMBus / SPI Battery Charger Controllers

LTC4100 7–26V 4A I SMBus 1.1

Single 0.8% I I pin I SSOP-24

LTC1760 5–28V 4A I SMBus 1.1

Dual 0.2% I I pin I TSSOP-48

LTC1759 3–21V 8A I SMBus 1.0

Single 1% I – pin I SSOP-36

LTC1960 6–28V 8A – SPI Dual 0.8% – – SPI – SSOP-36

SystemPower

SMBUS(Host)

LTC1760

Dual Battery Charger/Selector System Architecture

DC IN

SafetySignal 1

SMBus 1

SafetySignal 2

SMBus 2

3V to 5.5V

0.1µF13.7k

1.21k

0.033k

20µF

0.1µF

10µH

0.25BAT

5k

SCL

SDA

DCIN

CHGEN

SMBALERT

ACP

VDD

DCDIV

CHGEN

ACP

SMBALERT

SCL

SDA

THB

THA

ILIM

VLIM

DCIN

INFET

CLP

CLN

TGATE

BGATE

PGND

CSP

BAT

GND

LTC4100

10k

1.13k

54.9k

THERM

SCL

SDA


SWITCHMODE BUCK-BOOST 13

Pulse Battery Chargers

LTC4052: Li-Ion Battery Pulse Charger with Overcurrent Protection

Linear Technology’s pulse battery chargers dissipate only 280mW while fast charging at 0.8A from a 9V current limited input source, whereas a linear charger dissipates as much as 4.8W. Unlike switchmode chargers where an inductor is used to achieve high efficiency, a pulse charger dissipates minimal heat without an inductor.

Part No.


Max Charge Current

Input Voltage Standalone


Integr. Pass Trans.

Over Current Protection


AC Present Signal


Li-Ion Pulse Battery Chargers

LTC1730 1 1A 4.5–12V I Timer + C/10 I I I – I SO-8

LTC4052 1 1.5A 4.5–10V I Timer + C/10 I I I I – MS-10

VIN

Single Cell 4.2V, 1A, Standalone Li-ion Pulse Battery Charger

1k 10k4.7? RSENSE0.051k

CTIMER0.1µF

LTC40521µF 0.047µF

0.022µF

VIN = 4.5V to 10Vwith 1A Current Limit

CHRG

ACPR

GATE

SENSE

BAT

GNDTIMER Li-IonBattery

Limits Maximum Current for Safety

Switchmode Buck-Boost Battery Chargers

LTC1980: Combination Battery Charger and DC/DC Converter

Linear Technology’s buck-boost battery chargers seamlessly charge a battery as its voltage varies below, above or equal to the input voltage.

Part No.VBAT Range

Battery Chemistry


Max Charge Current

Input Voltage

Integrated Switch Synchronous

Charge Termination Method(s) Package

Switchmode Buck-Boost (Step-Down/Step-Up) Battery Chargers

LT1512 1.5–20V NiCd NiMH Lead-Acid

1–18 0.8A 2.4–29V I – µController SO-8

LT1513 1.5–20V NiCd NiMH Lead-Acid

1–18 1.6A 2.4–29V I – µController DDPak TO220

LTC1980 2.85–10V NiCd NiMH Li-Ion

1–2 4A 4.1–12V – – Timer + C/10 SSOP-24

Li-Ion Charger and DC/DC Converter Using One IC

Li-IonBattery

POWER FLOW

ChargingBattery Operation

SystemPower

LDO/Switch

3.3V

UnregulatedWall AdapterInput (3V to 10V)

1.8V

1.5V

BAT-FET REG-FET

LTC1980

System LoadDC/DC

Converters

PULSE

SWITCHMODE BUCK14

Switchmode Buck Battery Chargers

LTC4008: 4A, High Efficiency, Multi-Chemistry Battery Charger

Linear Technology’s step-down (buck) battery chargers enable high efficiency charging from high input voltages for a variety of battery chemistries.

Part No.VBAT Range

Battery Chemistry


Max Charge Current

Input Voltage

Integrated Switch Synchronous

Charge Termination Method(s) Package

Switchmode Multi-Chemistry Buck (Step-Down) Battery Chargers

LT1510 2.5–26V NiMH NiCd SLA Li-Ion

1-12 Ni SLA 1-4 Li-Ion

1A 7–29V I – µController or LTC1729

SO-8, SSOP, SO-16



2A 7–29V I – µController or LTC1729

TSSOP-20, SSOP-28



3A 7–29V – – µController or LTC1729

SO-24

LTC4008 3–28V NiMH NiCd SLA Li-Ion


4A 6–28V – I µController SSOP-20



8A 6.7–26V – I µController SSOP-28

Switchmode Li-Ion Buck Battery Chargers

LT1571 2.5–26V Li-Ion 1-2, adj 1.5A 6.2–27V I – LTC1729 SSOP-16, SSOP-28

LTC4001 2.5–5.5V Li-Ion 1 2A 4–5.5V I I Standalone (Timer + C/x)

4x4 QFN-16

LTC4002 2.5–8.4V Li-Ion 1-2 4A 4.7–22V – – Standalone (Timer)

DFN-10, SO-8

LTC4006 5–16.8V Li-Ion 2-4 4A 6–28V – I Standalone (Timer + C/10)

SSOP-16

LTC4007 7.5–16.8V Li-Ion 3-4 4A 6–28V – I Standalone (Timer + C/10)

SSOP-24

Input Switch

0.002

20µF

0.1µF

10µH

0.025

ICL

ACP/SHDN

FAULT

FLAG

NTC

RT

GND

DCIN

INFET

CLP

CLN

TGATE

BGATE

PGND

CSP

BAT

PROG

LTC4008

0.0047µF

Thermistor10kNTC

100k100k

VLOGIC

DCIN0V–28V

5.1k

3.01k

150k

3.01k

SystemLoad

Li-IonBattery

ChargingCurrentMonitor

26.7k

32.4k

0.47µF

4A Synchronous Multi-Chemistry Switchmode Battery Charger Controller


SWITCHMODE BUCK 15

VBAT

4.93k

22µF

4.2V

4.2V2 Li-Ion

AdapterCurrent Sense

5k

VIN (Adapter Input)11V –28V

To MainSystem Power

MBRD340

1µF

500Ω

10µF

0.47µF

200Ω 200Ω

20H

MBR0540TMBRD340

0.033ΩBattery Current

Sense

2A Monolithic Lithium-Ion Switchmode Battery Charger

BOOST

CLN

SENSE BAT

LT1769VCC

SPIN

GND CLP

PROG

SW

UV

Input Switch

0.033

20µF

15nF

10µH

0.025

DCIN

CHG

ACP/SHDN

IMON

NTC

RT

GND

INFET

CLP

CLN

TGATE

BGATE

PGND

CSP

BAT

LTC4006

Thermistor10kNTC

ChargingCurrent Monitor

100k

VLOGIC

DCIN0V–28V

3A5k

309k

System Load

Li-IonBattery

32.4k

0.47µF

0.0047µF

4A Lithium-Ion Switchmode Battery Charger

0.1µF

Switchmode Buck Battery Chargers

LT1769: 2A Monolithic Switchmode Battery Charger

LTC4006: 4A High Efficiency, Standalone Li-Ion Switchmode Battery Charger

Part No. Description ISUPPLY VOS IBIAS VS Range Packages

Low Side Current Sense Amplifiers

LT1490A/91A Dual/Quad Rail-to-Rail Over-The-Top® 50µA 500µV 8nA 2–44V DFN-8, DIP-8, MSOP-8, SO-8 DIP-14, SO-14

LT1636 Over-The-Top, Single Supply 55µA 225µV 8nA 2.6–44V DFN-8, DIP-8, MSOP-8, SO-8

LT1638/39 Dual/Quad, Rail-to-Rail Over-The-Top 230µA 600µV 50nA 2.2–44V DFN-8, DIP-8, MSOP-8, SO-8 DIP-14, SO-14

LTC2054/55 Single/Dual Zero-Drift 3V, 5V Operation 150µA 3µV 3nA 2.7–12V ThinSOT, DFN-8, MSOP-8

LT6010/11/12 Single/Dual/Quad Rail-to-Rail Output 150µA 35µV 0.11nA 2.7–40V DFN-8, SO-8

Part No.

Input Voltage Range

Directional Sense

Offset Voltage (Max @ 25°C)

Offset Voltage Drift (Typ)

Large Signal Step Response Gain Configuration

Separate Supply Input Package

High Side Current Sense Amplifiers

LT6100 4.1–48V Uni-directional 300µV 0.5µV/°C 50µs 5 Gain Settings Yes DFN-8, MSOP-8

LTC6101 4–60V Uni-directional 300µV 1µV/°C 1µs Adj w/ 2 Resistors Optional ThinSOT, MSOP-8

LTC6101HV 5–100V Uni-directional 300µV 1µV/°C 1µs Adj w/ 2 Resistors Optional ThinSOT, MSOP-8

LT1787 2.5–36V Bi-directional 75µV 0.5µV/°C 15µs Fixed Av=8 No SO-8, MSOP-8

LT1787HV 2.5–60V Bi-directional 75µV 0.5µV/°C 15µs Fixed Av=8 No SO-8, MSOP-8

Part No. DescriptionSupply Voltage

Prop Delay Typ

ISUPPLY Typ Package

Comparator & Reference Combinations

LTC1440/41/42 Single/Dual Comparator & Reference 2–11V 8µs 2.1µA MSOP-8, SO-8, DIP-8, DFN-8

LTC1443/44/45 Quad Comparator & Reference 2–11V 4µs 5.5µA DIP-16, SO-16, DFN-16

LTC1540 Nanopower Comparator & Reference 2–11V 50µs 0.3µA MSOP-8, SO-8, DFN-8

LTC1541 Micropower Amplifier, Comparator & Reference 2.5–12.6V 8µs 5µA MSOP-8, SO-8, DFN-8

LTC1842/43 Ultralow Power Dual Comparators with Reference 2.5–11V 4µs 3.5µA SO-8

LTC1998 1% Voltage Monitor, Ideal for Li-Ion Batteries 1.5–5.5V 150µs 2.5µA ThinSOT

LT6700-1/-2/-3 Low Voltage Dual Comparator & 400mV Reference 1.4–18.5V 18µs 6.5µA ThinSOT, DFN-6

HIGH SIDE & LOW SIDE BATTERY CURRENT SENSING / BATTERY MONITORING

Precision Current Sense Amplifiers

16

Linear Technology offers precision high-side current sense amplifiers with reverse battery protection, low quiescent current, separate power supply inputs and tiny packages.

For low-side current sensing, the best solutions are micropower, rail-to-rail input amplifiers with low input bias current and low offset voltage.

Comparator and Voltage Reference Building Blocks

The combination of micropower comparators and a voltage reference in a single package provides an ideal building block for battery monitoring. Typical applications include circuits for gas gauge battery monitoring, low-battery load reduction, backup battery switchover and window comparators with hysteresis.

0A to 33A High Side Current Monitor

VOUT = 2.5VISENSE = 33V

4.1V to 48VSupply

VCC

VEE

VS+

VS–

Load

3V

VOUT

220pF

RSENSE

3mΩ

LT6100

SUPPORT DEVICES 17

BACKUP

2.7M

1M

2.7M

1M

1µF

1µF

4.7µF

5V300mA

To PowerManagement

0.01µF

IN1 OUT

SS

SHDN

LBO1

LB02

DROPOUT

BIASCOMP

LBI1

IN2

LBI2

GND

LT1579-5

5V Dual Battery Backup Supply

OVP

BAT

SENSE

GND

VCC

VC

STATUS

NTC

SW

SENSE

OVP

GND

BOOST

PROG

VC

BAT

LTC1729-4.2

LT1510-5

1µF

0.22µF

L110µH

0.1µF

OPTION: Tie resistor to status for charge termination atlow charging current

10k NTC Thermistor

0.1µF

1µF

1k

COUT22µF

200Ω

300Ω 6.19kCIN10µF

Input Power8.2V– 20V

MMBD914L

VCC

1.4k

4.2V

Combination Battery Charger Termination Controller (LTC1729) and Switchmode Charger

4.7µFCHG

DISCHG

RL

4.7µF

Charger

Load

CF–

CF+ INT

CLR

POL

SHDN

SENSE– SENSE+

LTC4150

VDD RL

RSENSE

GND

µP

Coulomb Counter

Battery Charger Support Devices

LTC4150: Coulomb Counter and Battery Gas Gauge

Package: MSOP-10

LTC1729: Li-Ion Battery Charger Termination Controller

Package: MSOP-8, SO-8

LT1579: 300mA Dual Input Smart Battery Backup Regulator

Package: SSOP-16, SO-16, SO-8

Lin

ear

Bat

tery

Ch

arg

ers

Sel

ecto

r G

uid

e

Bat

tery

Cha

rge

Term

inat

ion

& In

teg

ratio

nS

tatu

s S

igna

lsTe

mp

erat

ure

Co

ntro

lP

art

Num

ber

Pag

e

Battery Cells (series)

Battery Charge Current (max), A

Standalone



ICHARGE

Monitor


AC Present Signal

Thermal Regulation


Package

Mos

tIn

teg

ratio

n/F

eatu

res

Le

ast

Li-I

on 4

.2V

/Cel

l Lin

ear

Bat

tery

Cha

rger

s w

ith P

ower

Pat

h C

ontr

ol

11.

5I

I5

I–

I–

II

DFN

-22

LTC

4089

/-1

03, 0

4, 0

5, 0

6, 1

0

11.

5I

I5

II

II

II

QFN

-24

LTC

4066

03, 0

4, 0

6, 1

0

11.

25I

I3

I–

II

II

QFN

-16

LTC

4055

03, 0

4, 0

6, 1

0, 2

0

11.

5I

I3

I–

II

II

DFN

-14

LTC

4085

03, 0

4, 0

6, 1

0

Li-I

on 4

.2V

/Cel

l Lin

ear

Bat

tery

Cha

rger

s

11

II

5I

II

II

ID

FN-1

0LT

C40

6104

, 05,

06,

08,

10,

20

11

II

5I

II

–I

–D

FN-1

0LT

C40

6204

, 06,

07,

08,

10,

20

11

II

5I

II

–I

–D

FN-1

0LT

C40

6304

, 07,

08,

10

12

II

5–

–I

I–

IM

S-1

0LT

C40

5004

, 10

10.

95I

I1,

2I

II

II

–D

FN-1

0LT

C40

75/7

6/77

/X04

, 06,

09,

10

11.

25I

I5

II

II

II

MS

-10

DFN

-10

LTC

4053

04, 0

6, 0

8, 1

0, 2

0

10.

95I

I2

II

II

I–

DFN

-8LT

C40

68/X

04, 0

6, 0

8, 0

9, 1

0

10.

95I

I1

II

II

I–

DFN

-8LT

C40

58/X

04, 0

6, 0

8, 0

9, 1

0

11.

5I

I5

II

II

II

MS

-10

LTC

1733

04, 0

8, 1

0, 2

0

1, 2

2I

I5

––

II

––

MS

-10

LTC

1732

04, 0

5

1, 2

2I

I5

––

I–

––

MS

-8LT

C17

3104

, 05,

20

10.

8I

I1

II

I–

I–

Thin

SO

TLT

C40

54/X

04, 0

6, 0

9,10

, 20

10.

75I

I5

II

II

I–

DFN

-6LT

C40

65/A

04, 0

6, 0

8, 1

0

10.

75I

I5

II

I–

II

DFN

-6LT

C40

6904

, 06,

08,

10

10.

7I

I3

––

I–

––

Thin

SO

TLT

C40

5604

, 20

10.

9–

I4

II

–I

I–

DFN

-6LT

C40

59/A

05, 0

6, 0

8, 0

9, 1

0

10.

8–

I4

II

––

I–

Thin

SO

TLT

C40

5705

, 06,

08,

10

10.

7–

I4

–I

––

––

Thin

SO

TLT

C17

3405

, 08,

20

Li-I

on 4

.1V

/Cel

l Lin

ear

Bat

tery

Cha

rger

s

11.

5I

I5

II

II

II

MS

-10

LTC

1733

04, 0

8, 1

0, 2

0

1, 2

2I

I5

––

II

––

MS

-10

LTC

1732

04, 0

5

1, 2

2I

I5

––

I–

––

MS

-8LT

C17

3104

, 05,

20

10.

7–

I4

–I

––

––

Thin

SO

TLT

C17

3405

, 08,

20

Li-I

on 4

.0V

/Cel

l Lin

ear

Bat

tery

Cha

rger

11

II

5I

II

II

IM

S-1

0LT

C40

6405

, 06,

10

Li-I

on C

oin

Cel

l Bat

tery

Cha

rger

s

10.

15I

I1

II

I–

I–

Thin

SO

TLT

C40

54L

09

10.

18–

I4

–I

––

––

Thin

SO

TLT

C17

34L

09

Li-I

on P

ulse

Bat

tery

Cha

rger

s

11.

3I

I5

II

II

––

MS

-10

LTC

4052

13

11.

3I

I5

I–

II

–I

SS

OP

-16

SO

-8

LTC

1730

10, 1

3

1 C

urre

nt C

/10

2 C

urre

nt C

/x 3

Tim

er 4

µC

ontr

olle

r 5

Tim

er w

ith C

/10

or C

/x In

dic

atio

n

18

Bat

tery

Cha

rge

Term

inat

ion

& In

teg

ratio

nS

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Co

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Num

ber

Pag

e

Battery Cells (series)


Standalone



ICHARGE

Monitor


AC Present Signal

Thermal Regulation


Package

Mos

tIn

teg

ratio

n/F

eatu

res

Le

ast

NiM

H /

NiC

d B

atte

ry C

harg

ers

1-16

4I

I6

––

II

–I

TSS

OP

-20

LTC

4011

02, 1

1

1-16

4I

I6

––

II

–I

TSS

OP

-16

LTC

4010

02, 1

1

1-4

2I

I8

––

II

–I

DFN

-16,

TS

SO

P-1

6LT

C40

60

Line

ar

02, 1

0

Li-I

on S

witc

hmod

e B

atte

ry C

harg

ers

12

II

5I

II

––

I4x

4 Q

FN-1

6LT

C40

0111

, 14

3-4

4I

I5

––

II

–I

SS

OP

-24

LTC

4007

11, 1

4

2-4

4I

I5

––

II

–I

SS

OP

-16

LTC

4006

11, 1

4, 2

0

1-2

2I

I5

––

–I

––

SS

OP

-24

LTC

1980

13, 2

0

1-2,

adj

1.5

–I

4, 7

I–

I–

––

SS

OP

-16

SS

OP

-28

LT15

7114

1-2

4I

I3

––

I–

–I

DFN

-10,

SO

-8LT

C40

0211

, 14

Bat

tery

Cha

rge

Term

inat

ion

& In

teg

ratio

nS

tatu

s S

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lsTe

mp

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ure

Co

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Num

ber

Pag

e

VBAT Range


Standalone



ICHARGE

Monitor


AC Present Signal

Thermal Regulation


Package

Mos

tIn

teg

ratio

n/F

eatu

res

Le

ast

Sm

art

Bat

tery

Cha

rger

s

3-21

V8

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–I

SS

OP

-36

LTC

1759

02, 1

1, 1

2, 2

0

5-28

V4

IS

MB

us4

––

––

–I

TSS

OP

-48

LTC

1760

11, 1

2, 2

0

6-28

V8

–S

PI4

––

––

––

SS

OP

-36

LTC

1960

02, 1

2, 2

0

7-26

V4

~S

MB

us4

––

–I

–I

SS

OP

-24

LTC

4100

02, 1

1, 1

2, 2

0

Lead

Aci

d,

NiM

H /

NiC

d,

Li-I

on S

witc

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e B

atte

ry C

harg

ers

2.5-

23V

8–

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7–

–I

––

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SO

P-2

8LT

1505

02, 1

4, 2

0

2.5-

26V

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7I

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O-2

4LT

1511

02, 1

4, 2

0

3-28

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4–

–I

I–

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SO

P-2

0LT

C40

0802

, 11,

14

1.5-

20V

0.75

–I

4, 7

I–

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-8

LT15

1202

, 13

1.5-

20V

2–

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7I

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ak, T

O-2

20LT

1513

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3

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7I

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SO

P-2

0, S

SO

P-2

8LT

1769

02, 1

4, 1

5

2.5-

26V

1–

I4,

7I

––

––

–S

O-8

, SS

OP,

SO

-16

LT15

1002

, 14,

17,

20

1 C

urre

nt C

/10

2 C

urre

nt C

/x 3

Tim

er 4

µC

ontr

olle

r 5

Tim

er w

ith C

/10

or C

/x In

dic

atio

n 6

T, t

, d

V, d

T/d

t 7

for

Li-I

on T

erm

inat

or u

se L

TC17

29 8

dV,

t,

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Sw

itch

mo

de

Bat

tery

Ch

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Sm

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Bat

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Ch

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Sel

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uid

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19

Switchmode Battery Chargers

Device

DN244 Simple Li-Ion Charge Termination Using the LT1505 LT1505

LT Magazine Fast Rate Li-Ion Battery Charger LT1505

AN68 LT1510 Design Manual LT1510

DN242 Li-Ion Charge Termination IC Interfaces with PWM Switchers LT1510

DN111 LT1510 High Efficiency Lithium-Ion Battery Charger LT1510

DN194 New Charger Topology Maximizes Battery Charging Speed LT1511

DN144 LT1511 Low Dropout, Constant-Current/Constant-Voltage 3A Battery Charger LT1511

DN124 Fused Lead Battery Charger ICs Need No Heat Sinks LT1510/11

LT Magazine 1.5A and 3A Fast Charger ICs Charge All Battery Types Including Lithium-Ion LT1510/11

LT Magazine Feature-Rich Battery Charger that Manages Both Battery Charging and Bus Voltage Regulation LTC1980

LT Magazine Next Generation No Compromise Battery Chargers LTC4006/7/8

Linear Battery Chargers

DN239 A Miniature, Low Dropout Battery Charger for Lithium-Ion Batteries LTC1731

LT Magazine Low Dropout Linear Li-Ion Charge Controllers Prevent Overcharging, Save Board Space LTC1731/2

LT Magazine LTC1733: Thermal Regulation Maximizes Lithium-Ion Battery Charging Rate Without Risk of Overheating LTC1733

DN283 Li-Ion Linear Charger Allows Fast, Full Current Charging While Limiting PC Board Temperature to 85°C LTC1733

LT Magazine

DN250

Very Low Cost Li-Ion Battery Charger Requires Little Area and Few Components LTC1734

A Very Low Cost SOT-23 Li-Ion Battery Charger Requires Little Area and Few Components

LT Magazine Decrease Li-Ion Battery Charge Time with a Monolithic Charger that Prevents Overheating LTC4054

LT Magazine New Standalone Linear Li-Ion Battery Chargers LTC4061, LTC4062

USB Battery Chargers

LT Magazine Complete USB Power Manager, Li-Ion Charger and Two Buck Converters in a 4mmx4mm QFN LTC3455

DN1008 Simple, Efficient, All-in-One USB Power Management IC Solution LTC3455

LT Magazine Compact Solution Uses USB Power to Run a Device and Simultaneously Charge its Battery LTC4053, LTC4410

LT Magazine Complete USB Solution Provides PowerPath Control and Input Current Limiting while Charging a Li-Ion Battery LTC4056

LT Magazine USB Power Controller/Charger Reduces Both Design Time and Battery Charge Time LTC4055

DN320 New ICs Simplify Battery Charging from the USB LTC4053

DN336 Advanced Topology USB (Intermediate Bus) Battery Charger Optimizes Power Utilization for Faster Charging LTC4055


LT Magazine Smart Battery Charger Is Programmed via the SMBus LTC1759

DN342 Dual Smart Battery Charger Simplifies Battery Backup for Servers LTC1760

DN277 Dual Battery Power Manager Increases Run Time by 12% and Cuts Charge Time in Half LTC1960

DN1005 Smart Battery Charger Reduces Circuit Size LTC4100

Power Path Controllers

LT Magazine Low Voltage PowerPath Driver Switches from a 3.3V or 5V Supply to Battery Backup LTC1473L

LT Magazine Compact Solution Uses USB Power to Run a Device and Simultaneously Charge its Battery LTC4410, LTC4053

DN1003 Ideal Diode/PowerPath Controller Eliminates Energy Wasting Diodes in Power OR-ing Applications LTC4412

DN356 Dual Monolithic Ideal Diode Manages Multiple Power Inputs LTC4413

Power Over Ethernet

DN361 Simple Battery Circuit Extends Power over Ethernet (PoE) Peak Current LTC4055

Further ReadingOnline at www.linear.com

20

, LTC, LT, and Over-The-Top are registered trademarks and PowerPath and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. © 2007 Linear Technology Corporation.

SALES OFFICES

North America Asia EuropeGREATER BAY AREA

Bay Area720 Sycamore Dr.Milpitas, CA 95035Phone: (408) 428-2050FAX: (408) 432-6331

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PACIFIC NORTHWEST

DenverPhone: (303) 926-0002

Portland5005 SW Meadows Rd., Ste. 410Lake Oswego, OR 97035Phone: (503) 520-9930FAX: (503) 520-9929

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SOUTHWEST AREA

Los Angeles21243 Ventura Blvd., Ste. 238Woodland Hills, CA 91364Phone: (818) 703-0835FAX: (818) 703-0517

Orange County15375 Barranca Pkwy., Ste. A-213Irvine, CA 92618Phone: (949) 453-4650FAX: (949) 453-4765

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CENTRAL AREA

Chicago2040 E. Algonquin Rd., Ste. 512Schaumburg, IL 60173Phone: (847) 925-0860FAX: (847) 925-0878

Cleveland7550 Lucerne Dr., Ste. 106Middleburg Heights, OH 44130Phone: (440) 239-0817FAX: (440) 239-1466

ColumbusPhone: (614) 488-4466

Detroit39111 West Six Mile RoadLivonia, MI 48152Phone: (734) 779-1657FAX: (734) 779-1658

Indiana Phone: (317) 581-9055

Kansas Phone: (913) 829-8844

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WisconsinPhone: (262) 859-1900

NORTHEAST AREA

Boston15 Research PlaceNorth Chelmsford, MA 01863Phone: (978) 656-4750FAX: (978) 656-4760

ConnecticutPhone: (860) 228-4104

Philadelphia3220 Tillman Dr., Ste. 120Bensalem, PA 19020Phone: (215) 638-9667FAX: (215) 638-9764

SOUTHEAST AREA

AtlantaPhone: (770) 888-8137

Austin8500 N. Mopac, Ste. 603Austin, TX 78759Phone: (512) 795-8000FAX: (512) 795-0491

Dallas17000 Dallas Pkwy., Ste. 200Dallas, TX 75248Phone: (972) 733-3071FAX: (972) 380-5138

Fort LauderdalePhone: (954) 473-1212

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HuntsvillePhone: (256) 881-9850

OrlandoPhone: (407) 688-7616

Raleigh15100 Weston Pkwy., Ste. 202Cary, NC 27513Phone: (919) 677-0066FAX: (919) 678-0041

TampaPhone: (813) 634-9434

CHINA

Linear Technology Corp. Ltd.Unit 2108, Metroplaza Tower 2 223 Hing Fong RoadKwai Fong, N.T., Hong KongPhone: +852 2428-0303FAX: +852 2348-0885

Linear Technology Corp. Ltd.Room 902, Evergo Tower 1325 Huaihai M. Road Shanghai, 200031, PRCPhone: +86 (21) 6375-9478FAX: +86 (21) 5465-5918

Linear Technology Corp. Ltd.Room 511, 5th Floor Beijing Canway Building 66 Nan Li Shi Lu Beijing, 100045, PRCPhone: +86 (10) 6801-1080 FAX: +86 (10) 6805-4030

Linear Technology Corp. Ltd.Room 2604, 26/FExcellence Times Square Building 4068 YiTian Road, Futian District Shenzhen, 518048, PRCPhone: +86 755-8236-6088FAX: +86 755-8236-6008

JAPAN

Linear Technology KK8F Shuwa Kioicho Park Bldg.3-6 Kioicho Chiyoda-kuTokyo, 102-0094, JapanPhone: +81 (3) 5226-7291FAX: +81 (3) 5226-0268

Linear Technology KK6F Kearny Place Honmachi Bldg.1-6-13 Awaza, Nishi-kuOsaka-shi, 550-0011, JapanPhone: +81 (6) 6533-5880FAX: +81 (6) 6543-2588

Linear Technology KK7F, Sakuradori Ohtsu KT Bldg.3-20-22 Marunouchi, Naka-ku Nagoya-shi, 460-0002, JapanPhone: +81 (52) 955-0056FAX: +81 (52) 955-0058

KOREA

Linear Technology Korea Co., Ltd.Yundang Building, #1002Samsung-Dong 144-23Kangnam-Ku, Seoul 135-090 KoreaPhone: +82 (2) 792-1617FAX: +82 (2) 792-1619

SINGAPORE

Linear Technology Pte. Ltd. 507 Yishun Industrial Park ASingapore 768734Phone: +65 6753-2692FAX: +65 6752-0108

TAIWAN

Linear Technology Corporation8F-1, 77, Nanking E. Rd., Sec. 3Taipei, TaiwanPhone: +886 (2) 2505-2622FAX: +886 (2) 2516-0702

FINLAND

Linear Technology ABTeknobulevardi 3-5P.O. Box 35FIN-01531 VantaaFinlandPhone: +358 (0)9 2517 8200FAX: +358 (0)9 2517 8201

FRANCE

Linear Technology S.A.R.L.Parc Tertiaire Silic2 Rue de la Couture, BP1021794518 Rungis CedexFrancePhone: +33 (1) 56 70 19 90FAX: +33 (1) 56 70 19 94

GERMANY

Linear Technology GmbHOsterfeldstrasse 84, Haus CD-85737 IsmaningGermanyPhone: +49 (89) 962455-0FAX: +49 (89) 963147

Linear Technology GmbHHaselburger Damm 4D-59387 AschebergGermanyPhone: +49 (2593) 9516-0FAX: +49 (2593) 951679

Linear Technology GmbHJesinger Strasse 65D-73230 Kirchheim/TeckGermanyPhone: +49 (0)7021 80770FAX: +49 (0)7021 807720

ITALY

Linear Technology Italy Srl Orione 3, C.D. ColleoniVia Colleoni, 17I-20041 Agrate Brianza (MI)ItalyPhone: +39 039 596 5080FAX: +39 039 596 5090

SWEDEN

Linear Technology AB Electrum 204Isafjordsgatan 22SE-164 40 Kista SwedenPhone: +46 (8) 623 16 00FAX: +46 (8) 623 16 50

UNITED KINGDOM

Linear Technology (UK) Ltd.3 The Listons, Liston RoadMarlow, Buckinghamshire SL7 1FDUnited KingdomPhone: +44 (1628) 477066FAX: +44 (1628) 478153

Linear Technology Corporation 1630 McCarthy Blvd. Milpitas, CA 95035-7417 Tel: 408-432-1900 www.linear.comBB0207OL

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