maxim motor control solution - eccn.com

Maxim Motor Control Solution ---Frank Fang, CPG AE, Sept 2015

| Maxim Integrated | Company Confidential

Topics

• Diagram Introduce

• Encoder interface

• Motor Driver

• Current Sense

• Interface(RS485/DI/DO)

• Isolator

| Maxim Integrated | Company Confidential 2

| Maxim Integrated | Company Confidential 5 | Maxim Integrated | Company Confidential

MAX11190 Competitive Comparison

Specifications MAX11190 Competitor 1 Competitor 2

Size 9mm2 16mm2 25mm2

Number I/Ps 4 8 4

SNR 73dB 71dB 70dB

Power 10.4mW 45mW 26mW

Reference External 2.5V, 50ppm/oC 2.048V, 6ppm/oC

Sample Rate per ADC 3MSPS 2MSPS 3MSPS

THD -75dB -76dB -77.5dB


16-Bit, 250ksps, +5V Unipolar Input SAR ADC with Internal Reference in TDFN-12 • MAX11165/6

Improves DC and AC accuracy

Improves signal integrity

Improves noise immunity

Saves cost and simplify design

Saves space

Benefits

±0.5LSB INL (typ), 93db SNR

+5V unipolar input range

Pseudo differential, 78dB CMR

Internal reference and buffer

3 x 3 mm TDFN package

Features

Test and measurement

Automatic test equipment

Industrial control systems

Medical instrumentations

Narrow band receivers

End Applications

http://www.maximintegrated.com/datasheet/index.mvp/id/8144

MAX14890 Incremental Encoder Interface for RS-422, HTL and TTL with Digital Inputs


Customer Challenges and Problems Solved

Challenges

• Increasing Factory Uptime for Motion Control Applications > System Robustness and Improved reliability

> Flexibility on the motor controller to communicate with various encoders

> Fault Protection/Detection

> Faster Data Rates for faster communication feedback and increased throughput

Maxim’s Solution

• The MAX14890 provide’s the industry’s most robust, highest performance, and most flexible solution for incremental encoder receivers


MAX14890 - Incremental Encoder Receiver Robust Quad RS-422/TTL/HTL Receivers + 2 DI

Applications

Motion controller

Encoder Interface

Pulse Counter Module

Servo Controller Commutator

Features

4 RS-422/TTL/HTL Receivers

2 SE-DI/TTL Receivers

±40V Fault Protection

±20V CMR Range

Fault Detection (Open, short, over/under)

Up to 35Mbps

Benefits

Reduces SKU’s with flexible RS-422, TTL, HTL encoder interfaces

Eliminates 2 external DI

Integrated Robustness eliminates $0.40 in circuitry

Fault Detection eliminates a 2nd IC used for redundancy


13 | Maxim Integrated | Company Confidential 13 13

Quad Fault-Protected RS-422 Receiver with Fault Detection: MAX14891

Features

Four RS-422 / RS-485 Receivers 35Mbps RS-422 data rates ±40V Fault Protection, ±20V CMR Open Wire, Short and OV Fault Detection 1.6V to 5.5V Logic Interface IEC-61000-4-2 ESD:±10kV Air, ±7kV Contact TQFN20 4mm x 4mm Package

-40°C to +125°C Operating Temp

Applications

• Servo Motor Control

• Incremental Encoder Interfaces

• Motor Control

Benefits

Integrated Robustness eliminates $0.40 in external protection circuitry

Integrated Fault detection increases uptime and eliminates redundancy circuitry

Fastest Date Rates enable increase data rates for improved production throughput

Compelling Story MAX14890 Competitor 1 Competitor 2

Fault Protection

±40V None None

Fault Detection Yes None -10 to +15

ESD ±10KV Air Gap/±Contact ±2KV ±6KV

Common Mode Voltage ±20V ±7V -7 to +12

Channels 4 4 4

Package 5x5 TQFN 16 SOIC 16 SOIC

Data Rates 35Mbps 10Mbps 50Mbps

Low Logic Yes 1.6-5V No No

TTL/HTL Support Yes No No

2 DI Yes No No


Solution BOM Comparison

Maxim MAX14891

Competitor $1.16

ESD $0.20

Fault Protection $0.32

TTL Circuitry $0.50

HTL Circuitry $0.50

2 DI $0.34

Vl Pin $0.15

Total BOM $3.17

Competitor


MAX14891 Competitor part Fault Detection

6 TVS Diodes for ESD Fault Protection

(resistors/zener diodes

• 20X smaller solution • 20X less protection components • Most Flexible and Robust design

TTL Circuitry

HTL Circuitry

DI

DI

MAX14870/71/72 4.5-36V 2.8A DC Brushed Motor Drivers


Customer Challenges and Problems Solved

Challenges

• The trend for DC brushed motors designs include becoming smaller, running cooler, running more

efficiently, reducing EMI, and simplifying designs

Maxim’s Solution

• The MAX14870/82 provides the industry’s smallest 4.5-36V DC brushed motor drivers that are 2X space

savings, dissipates 3X less power, reduces EMI with slew rate limiting, and uses a charge pump less

design to reduce design complexity and the footprint. The MAX14871 features a 25% ripple current

regulation to enable simple autonomous current regulation.


Typical Application Diagram:


Industry’s Smallest 4.5-36V DC Brushed Motor Driver/Relay Driver MAX14870/2/1 – Run Cooler, Longer, with Simplified Designs

Advantages

• Smallest H-Bridge driver saves 2X board space

• 3x Lower Ron saves 3X power dissipation to run cooler

• Widest 4.5-36V supply voltage runs longer on battery power

Applications

• POS ATM printers/micro printers

• Toys

• Coffee machines

• Cash counters / vending machines

• Remote disconnect for power meter

Features

• 2.5A peak motor current

• 0.4Ω Total typ (HS+LS) Ron

• 3x3 TDFN

• Short circuit protected to GND/Vcc

• Integrated current limiting

• Slew rate control reduces EMI

• Fast/Slow Decay Modes

3x3 TDFN


* FWD and REV pins on the MAX14872

Brushed DC + Relay Driver Applications: Single H-Bridge

Micro Printer Coffee Machine

Robots Locks Vending Machine/Coin Dispensing

Machines

Cash Counter

Power Meter Remote Disconnect + Latched Relay

Driver

20 | Maxim Integrated | Company Confidential

175V/2A, High-Speed,Half-Bridge MOSFET Drivers ---MAX15012/3

Applications

• Telecom Half-Bridge Power Supplies

• Two-Switch Forward Converters

• Full-Bridge Converters

• Active-Clamp Forward Converters

• Motor Control

Features

• 2A Peak Source and Sink Current Drive Capability

• Up to 175V Input Operation

• 8V to 12.6V VDD Input Voltage Range

• 35ns Typical Propagation Delay

• Guaranteed 8ns Propagation Delay Matching Between Drivers

• Up to 500kHz Switching Frequency

• Available in CMOS (VDD/2) or TTL Logic-LevelInputs with Hysteresis

• Low 2.5pF Input Capacitance

• Low 70μA Supply Current


Current Sense


Interface


Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control---MAX13487E/MAX13488E


AutoDirection Enables Driver Automatically on Transmission, Eliminating an Opto of Isolation

Hot-Swap Capability to Options Optimize Designs for Speed or Errorless Data Transmission

Benefits

±15kV ESD HBM

+5V supply range

SOIC-8 package

Features

Isolated RS-485 Interfaces Utility Meters Industrial Controls Industrial Motor Drives Automated HVAC Systems

End Applications

Autopolarity RS-485 Half-Duplex 5V Transceiver • MAX14781E

Benefits

Polarity correction autonomously corrects misconnected A/B lines High ESD reduces field failures Standard SOIC8 pin out for easy

replacement

End Applications

Power meters

Industrial controls

Environmental controls

Features

Polarity adaption of miswired connections

±25KV HBM ESD

Industry standard SO8



High-ESD and Fastest Half Duplex RS-485 • MAX14783E

Integrated ESD protection saves PCB space and 2x better than comp

Covers 2 common supplies, simplifying PS requirements

Standard pin out for easy competitor replacement, µMax-8 address Japan

Benefits

±35kV ESD HBM

+3.0V to +5.5V supply range

µMax-8, TDFN-EP8, SOIC-8 package

Features

Motion controllers

Fieldbus networks

Encoder interfaces

Environmental equipment

End Applications

Typical Half Duplex Network Standard Pin Out



±15kV ESD-Protected, Fail-Safe, Hot-Swap Full Duplex RS-485 • MAX13083E/MAX13082E/MAX13088E

MAX13080E/MAX13081E/MAX13084E/MAX13086E/MAX13087E

Extended ESD Protection for I/O Pins ±15kV True Fail-Safe Receiver Hot-Swap Input Structures on DE and active-low RE Low-Current Shutdown Mode Enhance Slew rate limiting

Benefits

±15kV ESD HBM

+5V supply range

SOIC-8 package

Features

Motion controllers

Fieldbus networks

Encoder interfaces

Environmental equipment

End Applications

Standard Pin Out






2.75kVRMS / 5kVRMS Iso RS-485 + TD Full Duplex (500Kbps to 25Mbps) MAX14853/55(2.5kVRMS)and MAX14857/59*(5kVRMS)

Benefits • Highest transceiver ESD

• Integrated LDO reduces footprint

• Most robust isolation technology

Applications

• PLCs

• Fieldbus Networks

• Telecomm

• Building Automation

Features

• 2.5/5kVRMS isolation

• Integrated Transformer Driver

• Integrated LDO

• ±35kV ESD HBM RS-485 transceiver

• W 16 SOIC Package (11x11)


2.5kVRMS / 5kVRMS Iso RS-485 +TD Half Duplex (500Kbps to 20Mbps) MAX14940/46(2.5kVRMS)and MAX14943/49*(5kVRMS)

Benefits • Highest transceiver ESD

• Integrated LDO reduces footprint

• Most robust isolation technology

Applications

• PLCs

• Fieldbus Networks

• Telecomm

• Building Automation

Features

• 2.5/5kVRMS isolation

• Integrated Transformer Driver

• Integrated LDO

• ±35kV ESD HBM RS-485 transceiver

• W 16 SOIC Package (11x11)


System Block Diagram


Digital Inputs

Traditional DI Discrete Design

| Maxim Integrated 35

Compared to discrete alternatives, MAX31910-MAX31915:

1. Reduces power/heat dissipation up to 80% thanks to an ultra-low power mode and integrated current limiter

2. Minimizes board space up to 50% vs. discrete solutions by integrating Parallel or SPI interfaces and selectable filters

3. Enables flexible designs with SPI daisy chain solution to increase digital input channels easily

4. Robust communication and diagnostics with embedded 5-bit CRC error checking, temperature and voltage monitoring

Maxim’s Digital Input Serializers/Translators Solve These Problems An Industry-Proven Digital Input Solution

36 | Maxim Integrated

DI Comparison: Serializer, SPI Interface

Specification MAX31910 – MAX31913 Competitor 1 Competitor 2

ICC (chip supply current) 2.3mA (1.5mA typ.) 8.7mA (6mA typ.) 2.3mA (1.6 mA typ.)

VCC operating field supply voltage 7V–36V 10V–34V 10V–35V

IEC 61131-2 compliant Type 1, 2, & 3 Type 1, 2, & 3 Type 1, 2, & 3

Configurable current limit & ultra low power mode

Yes* No No

Temperature & voltage monitoring

Yes Yes Yes

Field input pins—abs max -0.3V to +45V -0.3V to +36V -0.3V to +30V

SPI port error detection 5-bit CRC 1-bit parity 4-bit parity

Min. field input pulse width 1µs 1µs 50µs


* Available for the MAX31910 and MAX31912.

Digital Outputs

Traditional DO Discrete Designs


Compared to discrete solutions, MAX14900E offers:

1. 10x to 70x faster throughput with fast propagation delay < 0.8µs in push-pull mode, and < 2µs in high-side mode

2. 20% lower power / heat dissipation with ultra-low RON: 85mΩ typical

3. Smaller board space in a small 7mm x 7mm 48-QFN-EP with parallel or serial SPI interface option

4. Integrated protection, extensive diagnostics for individual channels and global parameters, with CRC error communication

Maxim’s Digital Output High-side Switch Solves These Problems An Industry Proven Digital Output Solution


MAX14900E Competitive Comparison

Specifications Maxim MAX14900E Competitor 1 Competitor 2

RDSON (typ.) 85m 110m 150m

RDSON (max.) 165m 200m 320m

Latency turn-off (typ.) 1µs 5µs 50µs

Latency turn-on (typ.) 2µs 10µs 75µs

Push-pull driver for fast load switching

Yes No No

Integrated diagnostics Yes Yes No

Package 7mmx7mm, 48-QFN-EP 10.5mm x 10.5mm, Power SSO-36 15.9mm x 14.2mm,PG-DSO-36

Parallel/serial interface Parallel & Serial Parallel & Serial Parallel only

SPI clock frequency (max) 20MHz 5MHz N/A


Demo Kit


Isolator


Family of Quad Channel 2.75kVRMS & 5kVRMS Digital Isolators MAX14930–MAX14937

Features

Applications

PLCs & PACs

Fieldbus networks

Telecomm

Medical systems

Benefits

1

2

4

3

16

15

13

14

5

6

8

7

12

11

9

10

VDDA

GNDA

IN1

IN2

IN3

IN4

NC

GNDA

VDDB

GNDB

OUT1

OUT2

OUT3

OUT4

ENB

GNDB

MAX14930, MAX14934

1

2

4

3

16

15

13

14

5

6

8

7

12

11

9

10

VDDA

GNDA

IN1

IN2

IN3

OUT4

ENA

GNDA

VDDB

GNDB

OUT1

OUT2

OUT3

IN4

ENB

GNDB

MAX14931, MAX14935

1

2

4

3

16

15

13

14

5

6

8

7

12

11

9

10

VDDA

GNDA

IN1

IN2

OUT3

OUT4

ENA

GNDA

VDDB

GNDB

OUT1

OUT2

IN3

IN4

ENB

GNDB

MAX14932, MAX14936

MAX14933, MAX14937

Proprietary capacitive technology provides robust isolation up to 5kVRMS

Low (1.8V) supply voltage capability enables reduced power dissipation

Directly interfaces with low voltage (1.8V) ASICs & Micros

Replaces inefficient optocouplers

One of industries widest selection of isolation voltage, speed grade and default output

Industries widest and lowest (1.71V to 5.5V) supply voltage capability

Best in class propagation delay (<10ns) and skew (<1nS)


http://www.maximintegrated.com/en/datasheet/maxim_confidential/index.mvp/id/8503/t/mc

http://www.maximintegrated.com/en/datasheet/index.mvp/id/8677

Part Selection Matrix

Suffix Legend For Package (yy)

WE = Wide body SOIC

SE = Narrow body SOIC

Part Isolation Voltage # of

Channels

# of

Inputs

V DDA

# of

Inputs

V DDB

Package

MAX14930xAyy 2750V RMS 4 4 0 N & W-SOIC-16



MAX14933Ayy 27500V RMS 2 2 2 N & W-SOIC-16

MAX14934xAyy 5000V RMS 4 4 0 W-SOIC-16



MAX14937Ayy 5000V RMS 2 2 2 W-SOIC-16

Suffix Legend For Speed Grade (x)

A = 1Mbps, output default high

B = 25Mbps, output default high

C = 150Mbps, output default high

D = 1Mbps, output default low

E = 25Mbps, output default low

F = 150Mbps, output default low

Note: MAX14933 and 14937 are available in only one speed grade of 3.4 Mbps

Wide & Narrow Body SOIC-16 Dimensions/Creepage/Clearance

Wide body SOIC-16 • D = 10.50mm max • E = 7.6mm max • H = 10.65mm max • Creepage = 8mm min • Clearance = 8mm min

Narrow body SOIC-16 • D = 10mm max • E = 4.00mm max • H = 6.2mm max • Creepage = 4mm min • Clearance = 4mm min

MAX14930-33 Competitive Comparison

Specifications Maxim

MAX14930 Competitor 1 Competitor 2 Competitor 3

Isolation Voltage (60 sec.) 2.75kVRMS 2.50kVRMS 2.50kVRMS 2.50kVRMS

Data Rate (Mb/sec) 1, 25, 150 1 & 150 25 & 150 1, 10 & 90

Supply Voltage Range 1.71 to 5.5V 2.7 to 5.5V 2.8 to 5.5V 2.7 to 5.5V

Supply Current (max @ VCC = 3.3V, data-rate=100Mbps)

Supply Current (max @VCC = 1.8V, data-rate=100Mbps)

6+28=34mA

6+19=25mA

6+18=24mA

NA

Not listed

NA

65+15=80mA

NA

Prop Delay (typ / max @ VCC =5V) 5 / 7.5ns 6 / 9.5ns ? / 23ns 27 / 32ns

Pulse width Distortion (max @ VCC = 5V) 1.0ns 2.5nS 2.0ns 2.0ns

Part-to-part skew (max @ VCC = 5V) 3.0ns 3.0nS 3.0ns 10ns

Ch.-to-ch. skew (max @ VCC = 5V) 0.9ns 1.8nS 1.0ns 2.0ns

CMTI (min @ VCC = 3.3V) 25 kV/µs 25kV/µs 25kV/µs 25kV/µs

Orange: Maxim has comparable performance

Green: Maxim has best in class performance

Thanks


maxim motor control solution - eccn.com

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