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etc. drive ic ?2000 fairchild semiconductor corporation www.fairchildsemi.com rev. 1.0.0 features ? high current output: 1.0a source and 2.0a sink protection against overcurrent and short circuit cmos compatible input and fault status indicator programmable fault-out duration time built in slow turn-off circuit under fault condition undervoltage lockout optimized for igbts negative gate drive capability suitable for integration in power modules -40 to 105c operating temperature description the fan8800 is a monolithic integrated circuit designed for driving single igbt with de-saturation and undervoltage protection. it is suitable for driving discrete and module igbts, and further, it offers a cost effective solution for driv- ing power mosfets. the integrated fault feedback notifies the controller when the igbt is shutdown due to a de-satu- ration or a over current condition. 8-dip typical applications gate drive for single insulated gate bipolar tr gate drive for single mosfet fan8800 (KA3162) single igbt gate driver
fan8800 (KA3162) 2 etc. drive ic pin assignments pin definitions pin number pin name pin function descrition 1 tdur fault output duration(adjustment capacitor for fault-out duration) 2 gnd ground 3 in inverting gate drive voltage output (vout) control input 4 vee gate drive voltage output 5 out output supply voltage (negative) 6v cc output supply voltage (positive) 7 fault fault output. fault changes from a logic low state to a logic high output when a fault condition is detected. 8 desat de-saturation voltage input. when the voltage on desat exceeds an internal reference voltage of 6.5v while the igbt is on, fault output is changed from a logic low state to a logic high state. 7 fan8800 1 2 3 45 6 7 8 t dur gnd in out v cc fault desat ( top view ) v ee
fan8800 (KA3162) 3 etc. drive ic internal block diagram delay fault fault-out duration t dur in uvlo buffer output circuit slow turn off control out desat 8 gnd vee vcc 6 4 5 3 2 1 7 ref1 6.5v ref2 4.5v s r q + - + -
fan8800 (KA3162) 4 etc. drive ic equivalent circuits driver input driver output fault out desat t dur vcc vee 3 5 vee vcc 7 vcc vee 2k 8 2k 300ua vee 1 2k vee
fan8800 (KA3162) 5 etc. drive ic absolute maximum ratings (ta = 25 c) recommened operating conditions (ta = 25 c) parameter symbol value unit power supply voltage v cc - vee 36 v output source current output sink current i o 1.0 2.0 a fault output source current fault output sink current if o 25 10 ma input voltage vin vee - 0.3 to v cc v de-saturation voltage v desat -0.3 to v cc v power dissipation and thermal characteristics maximum power dissipation @ta =25 c pd 0.56 w operating ambient temperature range t opr -40 to 105 c storage temperature range t stg -55 to 150 c parameter symbol min. typ. max unit total supply voltage v cc +13 +15 +18 v operating power supply voltage vee -13 -15 -18 v operating ambient temperature ta -40 25 105 c
fan8800 (KA3162) 6 etc. drive ic electrical characteristics (ta = 25 c) parameter symbol conditions min. typ. max. units logic input high input threshold voltage v ih --2.73.2v low input threshold voltage v il -1.22.3- drive output low output voltage v ol isink=1.0a - 2.0 2.4 v high output voltage v oh isource=500ma 12 14 - fault output low fault output voltage v fl isink=5.0a - 0.2 1.0 v high fault output voltage v fh isource=20ma 11 13.5 - uvlo start-up voltage v ccst -1111.512v disable voltage v ccdi -1010.511v uvlo hysteresis h y -0.91.011.1v desaturation input de-saturation current source i chg vin=0v, v desat =0v 210 300 380 a discharge current i dschg vin=vcc, v desat =vcc 1.0 2.5 - ma ocp and scp ocp voltage reference v ocp - 4.0 4.5 5.0 a scp voltage reference v scp - 5.8 6.5 7.3 ma power supply standby current i ccst vin = high, output open - 14 20 ma operating current i ccop cl=1.0nf, f=20khz - 20 30 ma propagation delay time to high output level t plh rg=0, cl=1.0nf f=10khz, duty cycle=50% - 0.35 0.7 s propagation delay time to low output level t phl - 0.35 0.7 s rise time tr - 50 100 ns fall time tf - 50 100 ns ocp delay time t ocp 50 80 120 s scp delay time t scp -0.31.0 s fault output duration time t dur cdur=2.7nf 100 170 320 s slow turn-off time t slow cl=4.7nf 0.8 2.0 5.0 s
fan8800 (KA3162) 7 etc. drive ic application information 1. fault-out duration time (t dur ) 1) two modes in fault-out duration. - ocp mode fault-out duration operates after t ocp . -scp mode if vpin8 is over 6.5v, fault-out duration will operate after t scp . 2) t dur (it can be adjusted by external capacitor (c dur ) is 2. slow turn-off (t slow ) 1) when scp (short circuit protection) is operated, q3 turns on and q2 turns on. 2) in the upper condition, q2 flows the constant current of 35ma. 3) the capacitance of igbt as the load is discharging by 35ma, that is slow turn-off. 4) slow turn-off time is t dur c dur 55 a5v1.4v ? () ? = 2.7nf 55 a5v1.4v ? () ? = 176 s = 5 l o a d vlink q3 q2 q1 low low internal circuit t slow c igbt 35ma v5max v5min ? () ? = 4.7nf 35ma 15v 1v ? () ? = 1.9 s =
fan8800 (KA3162) 8 etc. drive ic 3. ocp delay time (t ocp ) 1) if the saturation detector(desat or vpin8 ) is 4.5v < vpin8 < 6.5v, the fault-out signal will be high after t ocp . 2) t cop (this value is fixed internally) is 4. charge time in the de-saturation detection 1) when the signal of drive output (vpin5) is high, q4 turns on and it is operated de-saturation detection mode in upper fig- ure. in this mode, when it detects the voltage of collector- emitter terminal of igbt through d1. if vce(sat) + vf of d1 > 4.5v, it is operated ocp mode. if vce(sat) + vf of d1 > 6.5v, it is operated scp mode. when the input signal of igbt is from low-state to high-state, q4 turns off and it is operated de-saturation detection mode. on this times, the voltage of collector-emitter terminal of igbt is not saturation-state yet. this period is said on time delay (td (on) ). here, the operation of c desat is following ; when c desat is charged by current source of 300ua and so it prevents operating error for td (on) of igbt. 2) slope of vpin8 is t ocp 50pf 3 a5v ? = 83 s = 8 l o a d vlink 4.5v 6.5v internal circuit 300ua detect control c desat + - + - q4 d1 ? v ? t 300 ac desat ? = ?
fan8800 (KA3162) 9 etc. drive ic timing chart uvlo operation input and output signal vpin6[v] time 10.5 11.5 15 vpin5[v] time disable voltage start-up voltage 15 0 0 input signal output signal t plh t phl tr tf
fan8800 (KA3162) 10 etc. drive ic timing chart (continued) ocp delay time scp delay time vpin8 signal time 4.5 0 output signal input signal vpin7 signal t ocp [v] t dur vpin8 signal time 6.5 0 output signal input signal vpin7 signal t scp [v] t dur t slow
fan8800 (KA3162) 11 etc. drive ic typical perfomance characteristics 1. vcc vs. icc 11.5 12 12.5 13 13.5 13 14 15 16 17 18 14 vcc[v] i ccst [ma] 2. temperature vs. i ccst 0 4 8 12 -50 -25 25 50 75 100 16 temperature[ ] i ccst [ma] 0 125 4. temperature vs. t phl 3. temperature vs. t plh 0 100 200 300 -50 -25 25 50 75 100 400 temperature[ ] t plh [ns] 0 125 0 100 200 300 -50 -25 25 50 75 100 400 temperature[ ] t phl [ns] 0 125 1. vcc vs. icc 11.5 12 12.5 13 13.5 13 14 15 16 17 18 14 vcc[v] i ccst [ma] 2. temperature vs. i ccst 0 4 8 12 -50 -25 25 50 75 100 16 temperature[ ] i ccst [ma] 0 125 4. temperature vs. t phl 3. temperature vs. t plh 0 100 200 300 -50 -25 25 50 75 100 400 temperature[ ] t plh [ns] 0 125 0 100 200 300 -50 -25 25 50 75 100 400 temperature[ ] t phl [ns] 0 125
fan8800 (KA3162) 12 etc. drive ic typical perfomance characteristics (continued) 5. temperature vs. t slow 6. temperature vs. i chg 200 250 300 350 -50 -25 25 50 75 100 400 temperature[ ] i chg [ua] 0 125 0 0.5 1.5 2.5 -50 -25 25 50 75 100 3.5 temperature[ ] i slow [us] 0 125 1 2 3 7. temperature vs. t ocp 50 60 80 100 -50 -25 25 50 75 100 120 temperature[ ] i ocp [us] 0 125 70 90 110 8. temperature vs. t scp 0 0.2 0.6 1 -50 -25 25 50 75 100 1.4 temperature[ ] i scp [us] 0 125 0.4 0.8 1.2 5. temperature vs. t slow 6. temperature vs. i chg 200 250 300 350 -50 -25 25 50 75 100 400 temperature[ ] i chg [ua] 0 125 0 0.5 1.5 2.5 -50 -25 25 50 75 100 3.5 temperature[ ] i slow [us] 0 125 1 2 3 7. temperature vs. t ocp 50 60 80 100 -50 -25 25 50 75 100 120 temperature[ ] i ocp [us] 0 125 70 90 110 8. temperature vs. t scp 0 0.2 0.6 1 -50 -25 25 50 75 100 1.4 temperature[ ] i scp [us] 0 125 0.4 0.8 1.2
fan8800 (KA3162) 13 etc. drive ic typical application circuits single power supply application dual power supply application vlink 1 2 3 4 8 7 6 5 fan8800 l o a d t dur gnd in vee desat fault vcc out fault output signal input vcc vcc + vlink 1 2 3 4 8 7 6 5 fan8800 l o a d t dur gnd in vee desat fault vcc out fault output signal input vcc vcc + 1 2 3 4 8 7 6 5 fan8800 l o a d gnd in vee desat fault vcc out vlink fault output signal input vee vcc + + t dur 1 2 3 4 8 7 6 5 fan8800 l o a d gnd in vee desat fault vcc out vlink fault output signal input vee vcc + + t dur
fan8800 (KA3162) 14 etc. drive ic ordering information device package operating temperature fan8800 8-dip -40 c ~ +105 c
fan8800 (KA3162) 15 etc. drive ic
fan8800 (KA3162) etc. drive ic 12/28/99 0.0m 001 stock#dsxxxxxxxx ? 1999 fairchild semiconductor corporation life support policy fairchild?s products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. a critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com

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