IR2175S

Data Sheet No. PD60208 Rev. E IR2175(S) & (PbF) 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 Independent fast overcurrent trip signal High common mode noise immunity Input overvoltage protection for IGBT short circuit condition Open Drain outputs Also available LEAD-FREE Product Summary VOFFSET IQBS Vin Gain temp.drift fo Overcurrent trip signal delay Overcurrent trip level 600Vmax 2mA +/-260mVmax 20ppm/oC (typ.) 130kHz (typ.) 2µsec (typ) +/-260mV (typ.) Description The IR2175 is a 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 isolation technology is implemented to enable the high bandwidth signal processing. The output format is discrete PWM to eliminate need for the A/D input interface for the IR2175. The dedicated overcurrent trip (OC) signal facilitates IGBT short circuit protection. The open-drain outputs make easy for any interface from 3.3V to 15V. S Packages 8 Lead PDIP IR2175 8 Lead SOIC IR2175S Block Diagram Up to 600V 15V PWM Output GND Overcurrent VCC PO V+ VS IR2175 COM OC VB To Motor Phase (Refer to Lead Assignments for correct pin configuration). This/T...