advance information data sheet no. pd60186 ir2170 block diagram product summary v offset 600vmax i qbs 1ma overcurrent trip 1.5usec (typ) signal delay overcurrent trip level +/-260mv (typ.) over current sensing ic vb v+ v- vs vcc com ir2170 gnd 15v to motor phase up to 600v oc overcurrent features ? floating channel up to +600v ? monolithic integration ? overcurrent sensing through shunt resistor ? low i qbs 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 description ir2170 is the monolithic over current sensing ic de- signed for motor drive applications. it senses the motor phase current through an external shunt resistor, de- tects overcurrent condition, and transfers the signal to the low side. ir?s proprietary high voltage isolation tech- nology is implemented to enable the high bandwidth sig- nal processing. the dedicated overcurrent trip (oc) signal facilitates igbt short circuit protection. the oc output pulse width can be programmed by the external resistor and capacitor. the open-drain outputs make easy for any interface from 3.3v to 15v. packages 16 lead soic (wide body) 8 lead pdip 8 lead soic
2 ir2170 advance information www.irf.com recommended operating conditions the output logic timing diagram is shown in figure 1. for proper operation the device should be used within the recom- mended conditions. symbol definition min. max. units v b high side floating supply voltage v s +13.0 v s +20 v s high side floating supply offset voltage note 2 600 v oc overcurrent output voltage com vcc v cc low side and logic fixed supply voltage 9.5 20 v in input voltage between v in+ and v in- -260 +260 mv t a ambient temperature -40 125 c v note 2: logic operation for vs of -5 to +600v. logic state held for vs of -5v to -v bs . symbol definition min. max. units v s high side offset voltage -0.3 600 v bs high side floating supply voltage -0.3 25 v cc low side and logic fixed supply voltage -0.3 25 v in maximum input voltage between v in+ and v in- -5 5 v oc overcurrent output voltage com -0.3 vcc +0.3 v in- v in- input voltage (note 1) v s -5 v b+ 0.3 dv/dt allowable offset voltage slew rate ? 50 v/ns p d package power dissipation @ t a +25c 8 lead soic ? .625 8 lead pdip ? 1.0 16 lead soic ? 1.25 rth ja thermal resistance, junction to ambient 8 lead soic ? 200 8 lead pdip ? 125 16 lead soic ? 100 t j junction temperature ? 150 t s storage temperature -55 150 t l lead temperature (soldering, 10 seconds) ? 300 absolute maximum ratings absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. all voltage parameters are absolute voltages referenced to com, all currents are defined positive into any lead. the thermal resistance and power dissipation ratings are measured under board mounted and still air conditions. v c/w w note 1: capacitors are required between v b and vin-, and between v b and vs pins when bootstrap power is used. the external power supply, when used, is required between vs and vin-, and between v b and vs pins. c
3 ir2170 advance information www.irf.com ac electrical characteristics cont. v cc = v bs = 15v, unless otherwise specified. symbol definition min. typ. max. units t est conditions proagation delay characteristics tdoc propagation delay time of oc 1 1.5 ? twoc low true pulse width of oc ? 1 ? sec v oc+ overcurrent trip positive input voltage ? 260 ? v oc- overcurrent trip negative input voltage ? -260 ? i lk offset supply leakage current ? ? 50 a v b = v s = 600v i qbs quiescent v bs supply current ? 1 2 v s = 0v i qcc quiescent v cc supply current ? ? 1 i occ oc output sink current 10 ? ? 1?? dc electrical characteristics v cc = v bs = 15v, unless otherwise specified. symbol definition min. typ. max. units test conditions v o = 1v v o = 0.1v ma mv
4 ir2170 advance information www.irf.com ir2170s 8 7 6 4 3 2 1 vcc oc nc com vs vin- vin+ vb 5 8 lead soic ir2170 8 7 6 4 3 2 1 vcc oc nc com vs vin- vin+ vb 5 8 lead pdip ir21706s 16 15 14 4 3 2 1 vcc oc nc com vs vin- vin+ vb 13 16 lead soic 5 7 6 8 12 11 10 9 nc nc nc nc nc nc nc nc lead definitions symbol description v cc low side and logic supply voltage com low side logic ground v in+ positive sense input v in- negative sense input v b high side supply v s high side return oc overcurrent output (negative logic) n.c. no connection lead assignments
5 ir2170 advance information www.irf.com 8 lead pdip 01-3003 01 case outline - 8 lead soic (ms-012aa) 01-0021 09
6 ir2170 advance information www.irf.com 16 lead soic (wide body) 01-3014 03 ir world headquarters: 233 kansas st., el segundo, california 90245 tel: (310) 252-7105 ir european regional centre: 439/445 godstone rd., whyteleafe, surrey cr3 0bl, united kingdom tel: ++ 44 (0) 20 8645 8000 data and specifications subject to change without notice. 11/17/2000
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