IR2171 International Rectifier Corp., IR2171 Datasheet

IR2171

Manufacturer Part Number

IR2171

Description

DIP

Manufacturer

International Rectifier Corp.

Datasheets

1.IR2171.pdf (7 pages)

2.IR2171.pdf (6 pages)

3.IR2171.pdf (7 pages)

Specifications of IR2171

Date_code

02+

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

IR2171

Quantity:

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Company:

Meier Automation Equipment Co., Limited

Part Number:

IR2171

Manufacturer:

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

IR2171STRPBF

Manufacturer:

Quantity:

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Features

Description

IR2171/IR2172 are 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 iso-

lation technology is implemented to enable the high

bandwidth signal processing. The output format is dis-

crete PWM to eliminate need for the A/D input interface

for the IR2172. The dedicated overcurrent trip (OC) sig-

nal facilitates IGBT short circuit protection. The open-

drain outputs make easy for any interface from 3.3V to

15V.

Block Diagram

Floating channel up to +600V

Monolithic integration

Linear current feedback through shunt resistor

Direct digital PWM output for easy interface

Low I

Independent fast overcurrent trip signal

High common mode noise immunity

Input overvoltage protection for IGBT short circuit

Open Drain outputs

PWM Output

Overcurrent

condition

QBS

GND

15V

allows the boot strap power supply

NC (OC 2172)

VCC

COM

IR2171/

IMPORTANT NOTICE:

For new designs we recommend IR’s new products

IR2175, IR2177, IR21771, IR2277 or IR22771.

IR2172

V+

V-

LINEAR CURRENT SENSING IC

Product Summary

Packages

Overcurrent trip level

signal delay (IR2172)

Overcurrent trip

Gain temp.drift

V OFFSET

8-Lead SOIC

I QBS

V in

f o

Up to 600V

(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.

Data Sheet No. PD60192 revG

IR2171/IR2172 ( S )

20ppm/ o C (typ.)

+/-260mV (typ.)

+/-260mVmax

1.5usec (typ)

8-Lead PDIP

To Motor Phase

40kHz (typ.)

600Vmax

1mA

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