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IR2171 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 IR2171
部品説明 LINEAR CURRENT SENSING IC
メーカ International Rectifier
ロゴ International Rectifier ロゴ 



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IR2171 Datasheet, IR2171 PDF,ピン配置, 機能
ADVANCE INFORMATION Data Sheet No. PD60175-C
IR2171
LINEAR CURRENT SENSING IC
Features
Floating channel up to +600V
Monolithic integration
Linear current feedback through shunt resistor
Direct digital PWM output for easy interface
Low IQBS allows the boot strap power supply
High Common Mode Noise Immunity
Input overvoltage Protection for IGBT short circuit
condition
Open Drain output
Product Summary
VOFFSET
600V
IQBS
Vin
Gain temp. drift
1mA
+/-260mVmax
20ppm/oC(typ.)
fo 40kHz (typ.)
Descriptions
IR2171 is the linear current sensing IC designed for
motor drive applications. It senses the motor phase
current through an extenal shunt resistor, converts
from analog to digital signal, and transfers the signal
to the low side. IR’s proprietary high voltage isolation
technology is implemented to enable the high band-
width signal processing. The output format is discrete
PWM at 40kHz to eliminate need for the A/D input
interface. It allows direct interface to uP via simple
counter based measurement. The independently pow-
ered output enables easy interface to the opto cou-
pler device for galvanic isolation if needed.
Packages
8 Lead SOIC
8 Lead PDIP
16 Lead SOIC
(wide body)
Block Diagram
15V
PWM Output
GND
VCC V+
PO V-
IR2171
COM
VB
NC VS
Up to 600V
To Motor Phase

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