Product Summary

The IR2171STR is a linear current sensing IC designed for motor drive applications. The IR2171STR senses the motor phase current through an extenal shunt resistor, converts from analog to digital signal, and transfers the signal to the low side. IRs proprietary high voltage isolation technology is implemented to enable the high bandwidth signal processing.

Parametrics

IR2171STR absolute maximum ratings: (1)VS High side offset voltage: -0.3 to 600V; (2)VBS High side floating supply voltage: VS -0.3 to 25V; (3)VCC Low side and logic fixed supply voltage: -0.3 to 25V; (4)VIN Maximum input voltage between VIN+ and VIN: -5 to 5V; (5)VPO Digital PWM output voltage COM: -0.3 to VCC +0.3V; (6)VIN- VIN- input voltage: Vs -5 to VB+0.3V; (7)dV/dt Allowable offset voltage slew rate: 50 V/ns; (8)PD Package power dissipation @ TA ≤ +25°C 8 lead SOIC: 625W,; (9)8 lead PDIP: 1.0W,; (10)16 lead SOIC: 1.25W; (11)TJ Junction temperature: 150°C; (12)TS Storage temperature: -55 to 150°C; (13)TL Lead temperature (soldering, 10 seconds): 300°C.

Features

IR2171STR features: (1)Floating channel up to +600V; (2)Monolithic integration; (3)Linear current feedback through shunt resistor; (4)Direct digital PWM output for easy interface; (5)Low IQBS allows the boot strap power supply; (6)High Common Mode Noise Immunity; (7)Input overvoltage Protection for IGBT short circuit condition; (8)Open Drain output.

Diagrams

IR2171STR pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
IR2171STR
IR2171STR

IC CURRENT SENSE 8SOIC
Data Sheet
Negotiable 
IR2171STRPBF
IR2171STRPBF
International Rectifier
Board Mount Current Sensors IR2171S is not recommended for new designs.
Data Sheet
Negotiable