IR21771SPBF Datasheet

IC型號：
IR21771SPBF
PDF描述：
Phase Current Sensor IC for AC motor control
文件大?。?/label>
435.61KB
PDF頁數(shù)：
16頁
芯片廠家：
IRF

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Data Sheet No. PD60234 revB

IR22771S/IR21771S(PbF)

Phase Current Sensor IC for AC motor control

Features

鈥?/div>

Floating channel up to 600V for IR21771 and 1200V for

IR22771

Product Summary

OFFSET

(max)

range

Bootstrap supply range

Floating channel quiescent

current (max)

Sensing latency (max)

Throughput

Over Current threshold (max)

IR22771

IR21771

1200 V

600V

鹵250mV

8-20 V

2.2 mA

7.5 碌sec

(@20kHz)

40ksample/sec

(@20kHz)

鹵470 mV

鈥?/div>

Synchronous sampling measurement system

High PWM noise (ripple) rejection capability

Digital PWM output

Fast Over Current detection

Suitable for bootstrap power supplies

Low sensing latency (<7.5

碌sec

@20kHz)

Description

IR21771/IR22771 is a high voltage, high speed, single phase

current sensor interface for AC motor drive applications. The

current is sensed by an external shunt resistor. The IC converts the

analog voltage into a time interval through a precise circuit that also

performs a very good ripple rejection showing small group delay.

The time interval is level shifted and given to the output. The max

throughput is 40 ksample/sec suitable for up to 20 kHz

asymmetrical PWM modulation and max delay is <7.5

碌sec

(@20kHz). Also a fast over current signal is provided for IGBT

protection.

Package

Typical Connection

(Please refer to

Lead Assignments

for correct pin

configuration. This

diagram shows

electrical

connections only)

www.irf.com

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電流感應
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精確度
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輸入電壓
8 V ~ 20 V
電流 - 輸出
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工作溫度
-40°C ~ 125°C
安裝類型
表面貼裝
封裝/外殼
16-SOIC（0.295"，7.50mm 寬）
供應商設備封裝
16-SOIC
包裝
管件

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