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www.iksemi.com A New Era Semiconductor Company The Best Partner for your Success 1/10 Part Pin to Pin Compatibility Function Package IK402U BCR402 KCR402T Constant Currnet Linear LED Driver SOT23-6 IL9910N/D/DH HV9910 Universal High-Voltage LED Driver DIP-8/SOP-8 SOP-16 IL9961N/D/DH HV9961 LED Driver with Average-Mode Constant Current Control DIP-8/SOP-8 SOP-16 IK2306PT OWN 60mA High-Voltage LED Driver with Build-in MOSFET Switch SOT-89 IL9921/22/23 HV9921/22/23 High-Voltage LED Driver with Build-in MOSFET Switch SOT-89/TO-92 IK2802D MBI1802 High-Power Constant-Current LED Driver (2-Ch) SOP-8 IK2804D MBI1804 High-Power Constant-Current LED Driver (4-Ch) SOP-8 IK2816TSD MBI1816 High-Power Constant-Current LED Driver (16-Ch) TSSOP-20 IK2312ET (IL33120ET) OWN 120mA High-Voltage LED Driver with Build-in MOSFET Switch And Average-Mode Constant Current Control (Under Development) SOT-223 Driver IC Guide Note for LED Lighting For more information about LED Lighting driver IC, please refer to the Homepage. www.iksemi.com A New Era Semiconductor Company The Best Partner for your Success 2/10 IK402U IK402U is a high-stable current source IC designed to be used as a constant current LED driver. Application of a constant current source provides continuous brightness of LED light and long LED life time. Moreover, a constant current source provides an over-temperature protection to LED. Constant Currnet Linear LED Driver FEATURES APPLICATION Channel letters for advertising, LED strips for decorative lighting Aircraft, train, ship illumination Retrofits for general lighting, white goods like refrigerator lighting, Medical lighting Automotive applications like CHMSL and rear combination lights (2.9 x 1.6 x 1.1)mm SOT23-6L (SC74) Boost mode High-stability output current Low dropout voltage Easy adjustable output current Negative thermal coefficient of output current Small overall dimensions, possible chip mount in a single package with LED Low cost, no external elements, simple use LED drive current of 22mA Output current adjustable up to 65mA with external resistor Supply voltage up to 42V Easy paralleling of drivers to increase current Low voltage overhead of 1.2V High current accuracy at supply voltage variation No EMI ESD Rating: Human Body Model 2KV Reduced output current at higher temperatures (-) negative thermal coefficient of - 0.1 % / K Part NO. Package Current Range (mA) Maximum Voltage (V) PD (mW) Compatibility Device IK402U SOT23-6L (SC74) 22~65 40 300 BCR402U (Infineon) KCR402T (KEC) CRD (Current Regulating Device) NEW

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Page 1: for LED Lighting - IK Semiconiksemi.com/pds/1/(IK Semicon) LED Lighting Driver IC...Driver IC Guide Note for LED Lighting For more information about LED Lighting driver IC, please

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1/10

PartPin to Pin

CompatibilityFunction Package

IK402UBCR402

KCR402TConstant Currnet Linear LED Driver SOT23-6

IL9910N/D/DH HV9910 Universal High-Voltage LED DriverDIP-8/SOP-8

SOP-16

IL9961N/D/DH HV9961 LED Driver with Average-Mode Constant Current ControlDIP-8/SOP-8

SOP-16

IK2306PT OWN 60mA High-Voltage LED Driver with Build-in MOSFET Switch SOT-89

IL9921/22/23 HV9921/22/23 High-Voltage LED Driver with Build-in MOSFET Switch SOT-89/TO-92

IK2802D MBI1802 High-Power Constant-Current LED Driver (2-Ch) SOP-8

IK2804D MBI1804 High-Power Constant-Current LED Driver (4-Ch) SOP-8

IK2816TSD MBI1816 High-Power Constant-Current LED Driver (16-Ch) TSSOP-20

IK2312ET(IL33120ET)

OWN120mA High-Voltage LED Driver with Build-in MOSFET SwitchAnd Average-Mode Constant Current Control (Under Development)

SOT-223

Driver IC Guide Note for LED Lighting

☞ For more information about LED Lighting driver IC, please refer to the Homepage.

www.iksemi.com

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2/10

IK402UIK402U is a high-stable current source IC designed to be used as

a constant current LED driver. Application of a constant current source provides continuous brightness of LED light and long LED life time. Moreover, a constant current source provides an over-temperature protection to LED.

Constant Currnet Linear LED Driver

FEATURES APPLICATION► Channel letters for advertising, LED strips for

decorative lighting ► Aircraft, train, ship illumination ► Retrofits for general lighting, white goods like

refrigerator lighting, Medical lighting ► Automotive applications like CHMSL and rear

combination lights

(2.9 x 1.6 x 1.1)mm

SOT23-6L (SC74)

Boost mode

► High-stability output current ► Low dropout voltage ► Easy adjustable output current ► Negative thermal coefficient of output current ► Small overall dimensions, possible chip

mount in a single package with LED ► Low cost, no external elements, simple use ► LED drive current of 22mA ► Output current adjustable up to 65mA with

external resistor ► Supply voltage up to 42V ► Easy paralleling of drivers to increase current ► Low voltage overhead of 1.2V ► High current accuracy at supply voltage variation ► No EMI ► ESD Rating: Human Body Model 2KV► Reduced output current at higher temperatures

(-) negative thermal coefficient of - 0.1 % / K

Part NO. PackageCurrent

Range (mA)Maximum

Voltage (V)PD (mW) Compatibility Device

IK402USOT23-6L

(SC74)22~65 40 300

BCR402U (Infineon)KCR402T (KEC)

CRD (Current Regulating Device) NEW

Page 2: for LED Lighting - IK Semiconiksemi.com/pds/1/(IK Semicon) LED Lighting Driver IC...Driver IC Guide Note for LED Lighting For more information about LED Lighting driver IC, please

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3/10

IL9910The IL9910 is a PWM high-efficient LED driver specifically designed for driving multi-LED strings or arrays, supplied from voltage sources rating from 8VDC up to 450VDC. IC controls an external MOSFET at fixed switching frequency up to 300 kHz. The operating frequency can be set using an external resistor.

Universal High-Voltage LED Driver

FEATURES► 8 V to 450 V input range► LED string current can be set from a few mA

to more than 1 A► Brightness control for LED string from one

to hundreds of diodes► PWM low-frequency LED dimming► Functional Analogue of HV9910 (Supertex) ► Linear LED dimming► Operating temperature range -40℃~+85℃

APPLICATION► DC/DC or AC/DC LED Driver applications► Low-cost off-line buck, boost or buck-boost

converter control IC► RGB Backlighting LED Driver► Back Lighting of Flat Panel Displays► General purpose constant current source► Signage and Decorative LED Lighting► Automotive► Chargers

DIP-8 SOP-8 SOP-16

Device VcsOperating

Temperature Range (Ta)

Package

IL9910AD225~242mV

- 40 ~ +85℃

SOP-8IL9910AN DIP-8

IL9910ADH SOP-16IL9910BD

242~257mVSOP-8

IL9910BN DIP-8IL9910BDH SOP-16IL9910CD

257~275mVSOP-8

IL9910CN DIP-8IL9910CDH SOP-16

N-suffix D-suffix DH-suffix

Functional Block Diagram

Typical Application Circiut

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4/10

IL9961

The IL9961 is an average current mode control LED driver IC operating in a constant off-time mode. this control IC does not produce a peak-to-average error, and therefore greatly improves accuracy, line and load regulation of the LED current without any need for loop compensation or high-side current sensing. The output LED current accuracy is ±3%.The IC is equipped with a current limit comparator for hiccupmode output short circuit protection.The IL9961 can be powered from an 8.0~450V supply. A PWM dimming input is provided thataccepts an external control TTL compatible signal. The output current can be programmed by an internal 275mV reference, or controlled externally through a 0~1.5V dimming input.IL9961 is pin-to-pin compatible with IL9910 and it can be used as a drop-in replacement for many applications to improve the LED current accuracy and regulation.

LED Driver with Average-Mode ConstantCurrent Control

FEATURES► Input Voltage range VIN from 8 V to 450 V► Control by Fast average current ► Programmed fixed duration of the current off

state in the induction coil ► Linear LED dimming► Option of LED brightness trimming by low

frequency PWM signal ► Output short circuit protection ► IL9910 IC pin-to-pin compatibility ► Functional Analogue of HV9961 (Supertex) ► Operating temperature range -40℃~+125℃

APPLICATION► DC/DC or AC/DC LED Driver applications► LED backlight driver for LCD displays► General purpose constant current source► LED panels and screens ► Architectural and decorative LED lighting► LED street lighting

Typical Application Circiut

DIP-8 SOP-8 SOP-16N-suffix D-suffix DH-suffix

Functional Block Diagram

Page 3: for LED Lighting - IK Semiconiksemi.com/pds/1/(IK Semicon) LED Lighting Driver IC...Driver IC Guide Note for LED Lighting For more information about LED Lighting driver IC, please

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Compatibility and Functional Differences Between the IL9961 and IL9910 LED Drivers

Typical Application Circiut of IL9910 and IL9961

Feature IL9910 IL9961

Fixed-Frequency Mode Resistor from RT to GND N/A

Fixed Off-Time Mode Resistor from RT to GATEResistor from RT to GND(Value adjustment neededFor conversion from IL9910)

Current Threshold 250mV or VLD (peak) 272mV or VLD/5.5 (average)

Currnet Threshold Accuracy 10% Auto-Zero

LED Current AccuracyDepends on inductance andSwitching frequency variation

Independent of inductanceand switching frequency variation

LED Current RegulationPoor. LED current depends on Input and output voltage

Good

LD (Linear attenuation) Input Range

0~250mV 0.2V (0.15V)~1.5V

Residual LED Current VLD=GND 5% (typ.) of ILED @ VLD=250mV 0A

Current Limit Threshold None 440mV

Hiccup Time N/A 400us

Minimum On-Time 465ns 1000ns

Maximum Duty Cycle 0.5 (fixed freq.), 0.8 (fixed TOFF) 0.75

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6/10

IK2306 is high-voltage LED driver control ICs with build-in MOSFET switch and purposed forLED lighting control. IC allows efficient operation of LED strings from voltage sources ranging up to 400 VDC. The IK2306 include an internal high-voltage switching MOSFET controlled with fixed off-time TOFF of approximately 10μs. The LED string is driven at constant current, thus providing constant light output and enhanced reliability. The output current is internally fixed 50mA for IK2306. The peak current control scheme provides good regulation of the output current throughout the universal AC line voltage range of 85 to 264VAC or DC input voltage of 20 to 400V.

IK2306PTHigh-Voltage LED Driver with Build-in MOSFET Switch

FEATURES APPLICATION► ON-resistance of the MOSFET switch 210

Ohm for ambient temperature 25 ºС ► OFF-state breakdown voltage of the

MOSFET switch not less 500 V for ambient temperature 25 ºC

► Operating temperature range -40℃~+85℃► Own Design item

► Decorative Lighting► Low Power Light Fixtures► LED Signs and Displays► Architectural Lighting► Incandescent Replacements► Industrial Lighting

Functional Block Diagram

Typical Application Circiut

SOT-89PT-suffix

Page 4: for LED Lighting - IK Semiconiksemi.com/pds/1/(IK Semicon) LED Lighting Driver IC...Driver IC Guide Note for LED Lighting For more information about LED Lighting driver IC, please

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7/10

IL9921/22/23The IL9921, IL9922, and IL9923 are pulse width modulated (PWM) LED driver control ICs.They allow efficient operation of low current LED strings from voltage sources ranging up to400VDC. They include an internal high-voltage switching MOSFET controlled with fixed off-timeTOFF of approximately 10ms, which allow driving of LED voltage strings of up to 80% of the input voltage. The LED string is driven at constant current, providing constant light outputand enhanced reliability. The output current is internally fixed at 20mA for the IL9921, 50mA for the IL9922, and 30mA for IL9923.The peak current control scheme of the IL9921, IL9922, and IL9923 provide good LED currentregulation throughout the universal AC input voltage range of 85 to 264VAC or DC input voltageof 20 to 400V.

High-Voltage LED Driver with Build-in MOSFET Switch

FEATURES► ON-resistance of the MOSFET switch 210

Ohm for ambient temperature 25 ºС ► OFF-state breakdown voltage of the

MOSFET switch not less 500 V for Ambient temperature 25 ºC

► Operating temperature range -40℃~+85℃► Pin to Pin compatibility HV9921/22/23

(Supertex)

APPLICATION

3-Pin Switch-Mode LED Lamp Driver ICs

Typical Application Circiut

Features BenefitsInternal MOSFET Low external part count3 Pins, TO-92 or SOT-89 Low cost and small board area

DC input range : 20~400VDCUniversal off-line applications of 80~264VAC, or low voltage architectural lighting.

Fixed off-time control No compensation circuit needed. Simple control of buck converter. String LEDs up to 80% of input voltage

500V Breakdown voltage Meet input transient requirements such as EN61000 Series

► Decorative Lighting► Low Power Light Fixtures► LED Signs and Displays► Architectural Lighting► Incandescent Replacements► Industrial Lighting

Functional Block Diagram

SOT-89

TO-92

PT-suffix

LF-suffix

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High-Power Constant-CurrentLED Driver

FEATURES► Constant output current invariant to load

voltage change ► Output current adjusted through an external

resistor ► All Load Supply Voltage drift about 17V (Max)► Schmitt trigger input ► 5V supply voltage ► Buit-in Thermal Protection► Pin to Pin compatibility MBI1802/03/16

(Macroblock)

APPLICATION

IK2802D/04D/16TSDIK2802D/IK2804D/IK2816TSD is an instant On/Off LED driver for high power LED applications

and exploits to enhance its output characteristics. At IK2802D/IK2804D/IK2816TSD output stage, (Two/Four/Sixteen) regulated current ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of VF variations.

IK2802D/IK2804D/IK2816TSD provides users (2-Ch/4-Ch/16-Ch) constant current ports. Users may adjust the output current from (40~360mA/40~240mA /5~60mA) through an external resistor, Rext, which gives users flexibility in controlling the light intensity of LEDs. In addition, users can precisely adjust LED brightness from 0% to 100% via output enable with Pulse Width Modulation. Additionally, to ensure the system reliability, IK2802D/IK2804D/IK2816TSD is built with TP (Thermal Protection) function and thermal pad. The TP function protects IC from over temperature (165°C). Also, the thermal pad enhances the power dissipation. As a result, a large amount of current can be handled safely in one package

Characteristic IK2802D IK2804D IK2816TSDConstant-Current Output Channels 2 4 16Maximum output constant current per channel 360mA 240mA 60mA

Excellent output current accuracy

Between Channels (Max) <±3% <±3% <±3%

Between Ics (Max) <±6% <±6% <±6%Thermal protection Yes Yes YesPackage type SOP-8 SOP-8 TSSOP-20

Application IK2802D IK2804D IK2816TSD

Automotive interior lighting ● ● ●

Channel letter ●

Decoration lighting ●

High-Flux LED lighting ● ●

LCD Backlight ●

Photocopier ●

Scanner ●

Functional Block Diagram

SOP-8D-suffix

TSSOP-20TSD-suffix

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Application Circiut

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10/10

IK2312ETHigh-Voltage LED Driver with Build-in MOSFET Switch And Average-Mode Constant Current Control

FEATURES APPLICATION► Integrated 400V 40Ohm MOSFET Switch► Single resistor LED current setting ► 5% accurate LED current ► Output short circuit protection with skip mode► Over-temperature protection► Own Design item

► Decorative Lighting► Low Power Light Fixtures► LED Signs and Displays► Architectural Lighting► Industrial Lighting

(Under Development)

The IK2312ET is a pulse width modulated (PWM) LED driver control IC. It allows efficient operation of low current LED strings from voltage sources ranging up to 400VDC. The IK2312ET include an internal high-voltage switching MOSFET controlled with fixed off-timeTOFF of approximately 10μs. The LED string is driven at constant current, providing constant light output and enhanced reliability. The IK2312ET does not produce a peak-to-average error, andtherefore greatly improves accuracy of the LED current. The IK2312ET designed for using low

inductance value. The average current control scheme of the IK2312ET provide good LEDcurrent regulation throughout the universal AC input voltage range of 85 to 264 VAC or DC input voltage of 20 to 400V.

Functional Block Diagram

Typical Application Circiut

SOT-223ET-suffix

(IL33120ET)

Page 6: for LED Lighting - IK Semiconiksemi.com/pds/1/(IK Semicon) LED Lighting Driver IC...Driver IC Guide Note for LED Lighting For more information about LED Lighting driver IC, please

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