power management product selection guide - International Rectifier
power management product selection guide - International Rectifier
power management product selection guide - International Rectifier
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Current Sensing ICs | PRODUCT FAMILIES<br />
Features<br />
• Floating channel up to +1200V<br />
• Monolithic integration<br />
• Linear current feedback through<br />
shunt resistor<br />
• Direct digital PWM output for<br />
easy interface<br />
• Direct analog output for easy<br />
interface (IR2177 and IR2277 only)<br />
• Independent fast over-current trip signal<br />
• High common mode noise immunity<br />
• Input over-voltage protection for IGBT<br />
short circuit condition<br />
• Open drain outputs<br />
Motion Control Current Sensing ICs<br />
The IR217x/IR227x is a family of monolithic current sensing ICs designed for motor drive<br />
applications. The ICs sense the motor phase current through an external shunt resistor,<br />
convert the current information from an analog to a digital signal, and transfer the signal<br />
to the low-voltage circuitry. IR's proprietary high-voltage isolation technology is implemented<br />
to enable the high bandwidth signal processing. The output format is either a discrete<br />
PWM to be used when A/D interface is not available, or an accurate analog signal<br />
linked to an external voltage reference to simplify signal conditioning in A/D equipped<br />
applications. The dedicated over-current trip signal facilitates IGBT short circuit and overcurrent<br />
protection. The open-drain digital outputs of the IR2175, IR2177, IR2277, IR21771,<br />
and IR22771 make it easy for any interface from 3.3V to 15V. The self-adaptable analog<br />
output of the IR2177 and IR2277 make it easy to interface AD converter with any input<br />
range from 3V to 12.5V.<br />
IR’s iMOTION Integrated Design Platform delivers everything you need to design a complete<br />
variable speed motor control subsystem. From the front panel and <strong>power</strong> entry to the<br />
motor terminals, iMOTION brings <strong>power</strong>ful digital, analog and <strong>power</strong> silicon together with<br />
algorithms, development software and design tools.<br />
Part<br />
Number<br />
Package<br />
Offset<br />
Voltage<br />
PbF<br />
Analog<br />
Output<br />
Digital<br />
Output<br />
Overcurrent<br />
Output<br />
V IN<br />
Duty Cycle<br />
Range Min Max<br />
V CC<br />
Range<br />
IR2175 8-Lead PDIP<br />
600V Yes No Yes Yes ±260mV 7% 93% 9.5-20V<br />
IR2175S 8-Lead SOIC<br />
IR2177S 16-Lead SOIC 600V Yes Yes Yes Yes ±250mV 10% 30% 8-20V<br />
IR21771S 16-Lead SOIC 600V Yes No Yes Yes ±250mV 10% 30% 8-20V<br />
IR2277S 16-Lead SOIC 600V Yes Yes Yes Yes ±250mV 10% 30% 8-20V<br />
IR22771S 16-Lead SOIC 600V Yes No Yes Yes ±250mV 10% 30% 8-20V<br />
www.irf.com INTERNATIONAL RECTIFIER / POWER MANAGEMENT SELECTION GUIDE 17
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