80 amp 81cnq...a series bulletin pd-20040 rev. a 09/01 www.irf.com 1 i f(av) rectangular 80 a waveform v rrm range 35 to 45 v i fsm @ tp = 5 s sine 4600 a v f @ 40 apk, t j = 125c 0.54 v (per leg) t j range - 55 to 175 c characteristics 81cnq...a units major ratings and characteristics the 81cnq...a center tap schottky rectifier module series has been optimized for low reverse leakage at high temperature. the proprietary barrier technology allows for reliable operation up to 175 c junction temperature. typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. 175 c t j operation center tap module high purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance low forward voltage drop high frequency operation guard ring for enhanced ruggedness and long term reliability new fully transfer-mold low profile, small footprint, high current package description/features schottky rectifier new geniii d-61 package case styles d61-8 81cnq...a 81cnq...asm 81cnq...asl d61-8-sm d61-8-sl
81cnq...a series 2 bulletin 20040 rev. a 09/01 www.irf.com i f(av) max. average forward current 80 a 50% duty cycle @ t c = 141 c, rectangular wave form * see fig. 5 i fsm max. peak one cycle non-repetitive 4600 5s sine or 3s rect. pulse surge current (per leg) * see fig. 7 790 10ms sine or 6ms rect. pulse e as non-repetitive avalanche energy 54 mj t j = 25 c, i as = 8 amps, l = 1.7 mh (per leg) i ar repetitive avalanche current 8 a current decaying linearly to zero in 1 sec (per leg) frequency limited by t j max. v a = 1.5 x v r typical t j max. junction temperature range -55 to 175 c t stg max. storage temperature range -55 to 175 c r thjc max. thermal resistance junction 0.85 c/w dc operation * see fig. 4 to case (per leg) r thjc max. thermal resistance junction 0.42 c/w dc operation to case (per package) r thcs typical thermal resistance, case 0.30 c/w mounting surface , smooth and greased to heatsink (d61-8 only) device flatness < 5 mils wt approximate weight 7.8 (0.28) g (oz.) t mounting torque min. 40 (35) (d61-8 only) max. 58 (50) thermal-mechanical specifications kg-cm (ibf-in) v fm max. forward voltage drop 0.60 v @ 40a (per leg) * see fig. 1 (1) 0.74 v @ 80a 0.54 v @ 40a 0.66 v @ 80a i rm max. reverse leakage current 5 ma t j = 25 c (per leg) * see fig. 2 (1) 45 ma t j = 125 c c t max. junction capacitance (per leg) 2600 pf v r = 5v dc , (test signal range 100khz to 1mhz) 25c l s typical series inductance (per leg) 5.5 nh measured lead to lead 5mm from package body dv/dt max. voltage rate of change 10000 v/ s (rated v r ) t j = 25 c t j = 125 c electrical specifications (1) pulse width < 300s, duty cycle <2% v r = rated v r absolute maximum ratings following any rated load condition and with rated v rrm applied parameters 81cnq units conditions a part number 81CNQ035A 81cnq040a 81cnq045a v r max. dc reverse voltage (v) v rwm max. working peak reverse voltage (v) voltage ratings 35 40 45 parameters 81cnq units conditions parameters 81cnq units conditions
81cnq...a series 3 bulletin 20040 rev. a 09 /01 www.irf.com fig. 2 - typical values of reverse current vs. reverse voltage (per leg) fig. 3 - typical junction capacitance vs. reverse voltage (per leg) fig. 4 - max. thermal impedance z thjc characteristics (per leg) fig. 1 - max. forward voltage drop characteristics (per leg) instantaneous forward current - i f (a) forward voltage drop - v fm (v) reverse current - i r (ma) reverse voltage - v r (v) junction capacitance - c t (p f) reverse voltage - v r (v) t 1 , rectangular pulse duration (seconds) thermal impedance z thjc (c/w) 0.01 0.1 1 0.00001 0.0001 0.001 0.01 0.1 1 10 100 single pulse (thermal resistance) d = 0.50 d = 0.33 d = 0.25 d = 0.17 d = 0.08 notes: 1. duty factor d = t1/ t2 2. peak tj = pdm x zthjc + tc 2 t 1 t p dm 0.1 1 10 100 1000 0 0.2 0.4 0.6 0.8 1 t = 175?c t = 125?c t = 25?c j j j 0.001 0.01 0.1 1 10 100 1000 0 5 10 15 20 25 30 35 40 45 150 ? c 125 ? c 100 ? c 75 ? c 50 ? c 25 ? c tj = 175 ? c 100 1000 10000 0 1020304050 t = 25 ? c j
81cnq...a series 4 bulletin 20040 rev. a 09/01 www.irf.com fig. 7 - max. non-repetitive surge current (per leg) fig. 5 - max. allowable case temperature vs. average forward current (per leg) fig. 8 - unclamped inductive test circuit fig. 6 - forward power loss characteristics (per leg) allowable case temperature (c) average forward current - i f(av) (a) average power loss (watts) average forward current - i f(av) (a) non-repetitive surge current - i fsm (a) square wave pulse duration - t p (microsec) free-wheel d io d e 40hfl40s02 current monitor high-speed sw itch irfp460 l dut rg = 25 ohm vd = 25 volt + 0 4 8 12 16 20 24 28 32 0 102030405060 dc rms limit d = 0.08 d = 0.17 d = 0.25 d = 0.33 d = 0.50 100 1000 10000 10 100 1000 10000 at any rated load condition and with rated vrrm applied following surge 140 150 160 170 180 0 102030405060 dc rthjc (dc) = 0.85 ? c/w
81cnq...a series 5 bulletin 20040 rev. a 09 /01 www.irf.com outline table outline d61-8 dimensions are in millimeters and (inches) outline d61-8-sm dimensions are in millimeters and (inches)
81cnq...a series 6 bulletin 20040 rev. a 09/01 www.irf.com outline table outline d61-8-sl dimensions are in millimeters and (inches)
81cnq...a series 7 bulletin 20040 rev. a 09 /01 www.irf.com part marking information d61-8 d61-8-sm d61-8-sl this is a 81cnq045asl with lot code 89 09 assembled on ww 45, 2000 in the assembly line "a" assembly lot code international rectifier logo part number date code year 0 = 2000 week 45 line a 81cnq045asl 89 09 045a this is a 81cnq045a with lot code 89 09 assembled on ww 45, 2000 in the assembly line "a" assembly lot code international rectifier logo part number date code year 0 = 2000 week 45 line a 81cnq045a 89 09 045a this is a 81cnq045asm with lot code 89 09 assembled on ww 45, 2000 in the assembly line "a" assembly lot code international rectifier logo part number date code year 0 = 2000 week 45 line a 81cnq045asm 89 09 045a
81cnq...a series 8 bulletin 20040 rev. a 09/01 www.irf.com ir world headquarters: 233 kansas st., el segundo, california 90245, usa tel: (310) 252-7105 tac fax: (310) 252-7309 visit us at www.irf.com for sales contact information. 09/01 data and specifications subject to change without notice. this product has been designed and qualified for industrial level. qualification standards can be found on ir's web site.
|
