IR2172S

更新时间： 2024-11-08 23:58:47

品牌	Logo	应用领域
英飞凌 - INFINEON		模拟IC 信号电路
页数	文件大小	规格书
7页	125K
描述
Linear Current Sensing. Direct Digital PWM Output. 1.5us Over-current Trip Signal Delay in a 8-lead SOIC package

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数据手册

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IR2172S 数据手册

ADVANCE INFORMATION Data Sheet No. PD60176-C

IR2172

LINEAR CURRENT SENSING IC

Features

Product Summary

• Floating channel up to +600V

• Monolithic integration

600Vmax

OFFSET

• Linear current feedback through shunt resistor

• Direct digital PWM output for easy interface

•

1mA

QBS

+/-260mVmax

20ppm/^oC (typ.)

QBS

Low I

allows the boot strap power supply

•

Independent fast overcurrent trip signal

High common mode noise immunity

Input overvoltage protection for IGBT short circuit

condition

Gain temp.drift

40kHz (typ.)

1.5usec (typ)

Overcurrent trip

signal delay

•

Open Drain outputs

Overcurrent trip level

+/-260mV (typ.)

Description

IR2172 is the monolithic current sensing IC designed

for motor drive applications. It senses the motor phase

current through an external shunt resistor, converts from

analog to digital signal, and transfers the signal to the

low side. IR’s proprietary high voltage isolation technol-

ogy is implemented to enable the high bandwidth signal

processing. The output format is discrete PWM to elimi-

nate need for the A/D input interface. The dedicated

overcurrent trip (OC) signal facilitates IGBT short cir-

cuit protection. The OC output pulse can beprogrammed

by the external resistor and capacitor. The open-drain

outputs make easy for any interface from 3.3V to 15V.

Packages

8 Lead SOIC

8 Lead PDIP

16 Lead SOIC

(wide body)

Up to 600V

Block Diagram

15V

PWM Output

VCC

V+

V-

IR2172

GND

COM

Overcurrent

To Motor Phase

12 3 4 5 6 7

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