IR2170

更新时间： 2024-09-16 22:48:07

品牌	Logo	应用领域
英飞凌 - INFINEON		模拟IC 信号电路光电二极管
页数	文件大小	规格书
5页	83K
描述
OVER CURRENT SENSING IC

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数据手册

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IR2170 数据手册

Preliminary Data Sheet No. PD60186-C

( )

IR2170 S

OVER CURRENT SENSING IC

Features

Product Summary

• Floating channel up to +600V

• Monolithic integration

• Overcurrent sensing through shunt resistor

•

600Vmax

1mA

OFFSET

QBS

Low I

allows the boot strap power supply

•

Independent fast 1µsec overcurrent trip signal

High common mode noise immunity

Input overvoltage protection for IGBT short circuit

condition

Overcurrent trip

signal delay

1.5usec (typ)

Overcurrent trip level

+/-260mV (typ.)

•

Open Drain outputs

Packages

Description

IR2170(S) is the monolithic over current sensing IC de-

signed for motor drive applications. It senses the motor

phase current through an external shunt resistor, de-

tects overcurrent condition, and transfers the signal to

the low side. IR’s proprietary high voltage isolation tech-

nology is implemented to enable the high bandwidth sig-

nal processing. The dedicated overcurrent trip (OC)

signal facilitates IGBT short circuit protection. The OC

8-Lead SOIC

8-Lead PDIP

output pulse width can beprogrammed by the external resistor and capacitor. The open-drain outputs make easy for

any interface from 3.3V to 15V.

Typical Application

DC Bus (up to 600V)

+15V

Ω

Vdd

1 k

(typ)

10 uF

0.47 uF

IN+

10 nF

IN-

COM

(AGND)

To Motor Phase

SENSE

(DGND)

IR2170

(Circuit Common = DC Bus Negative)

(Refer to Lead Assignments for correct pin configuration). This/These diagram(s) show electrical connections only. Please

refer to our Application Notes and DesignTips for proper circuit board layout.

12 3 4 5

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