hybrid ic VLA551K-01R driver for igbt modules description VLA551K-01R is a hybrid integrat ed circuit designed for driving n-channel igbt modules in any gate-amplifier application. this device include the isolat ed type dc-dc converter for a gate drive. therefore design of the gate power supply is not required. the system of built-in short circ uit protection provide a margin to time by function to maintain reverse bias for a predetermined time after the detecti on of short circuit. recommended igbt modules: v ces =600v series up to 600a class v ces =1200v series up to 450a class v ces =1700v series up to 400a class features ?built-in the isolated type dc- dc converter for gate drive ?sip outline allows more space on mounting area ?built-in short circuit pr otection (with fault output) ?variable fall time on activity of short circuit protection ?electrical isolation voltage between input and output is 4000vrms (for 1minute) ?hcmos compatible input. applications to drive igbt modules for inverter or ac servo systems application block diagram outline drawing dimensions: mm detect pin 16 13 vcc v ee fault output 22 21 ttrip control pin timer&reset circuit 15 gnd regulator dc ac converter 1 2 6 17 vo interface 18 shut-down speed control latch gate shut-down circuit 20 3 4 detect v d g i 7 v i + v i - 240 ? 14 1k ? coupler led on:gate ? output h coupler led ? off:gate ? output ? l 39.0max 63.0max 5.0max 5.0max 2.54 0.75 +/-0.1 3.5+/-1.0 1 22 4.5max 11.5max 15.5max 0.5 +0.2/-0.1
hybrid ic VLA551K-01R driver for igbt modules maximum ratings (unless otherwise noted, ta=25c) symbol parameter conditions ratings unit v d supply voltage dc -1 16.5 v v i input signal voltage applied between pin 6 ? 7 50% duty cycle, pulse width 1ms -1 ~ +7 v v o output voltage when the output voltage is ?h? v cc v i ohp output current pulse width 2s -5 a i olp 5 a viso isolation voltage sine wave voltage 60hz, for 1min. 4000 vrms t c case temperature surface temperature 100 c topr operating temperature no condensation allowable -40 ~ +70 c tstg storage temperature no condensation allowable -40 ~ +100 (*1) c i fo fault output current applied pin 20 20 ma v r22 input voltage to pin 22 applied pin 22 50 v i drive gate drive current gate average current 100 (*2) ma (*1) differs from h/c condition (*2) refer to idrive-ta characteristics (needs derating) electrical characteristics (unless otherwise noted, ta=25c, v d =15v, r g =3 ) symbol parameter conditions limits unit min typ max v d supply voltage recommended range 14.2 15 15.8 v v in pull-up voltage on input side recommended range 4.75 5 5.25 v i ih ?h? input current recommended range 10 13 16 ma switching frequency recommended range - - 20 khz r g gate resistance recommended range 2 - - i ih ?h? input current v in = 5v - 13 - ma vcc gate positive supply voltage D 15.2 - 16.9 v v ee gate negative supply voltage D -6 - -11.5 v gate supply efficiency load current = 100ma = (vcc+lv ee l) x 0.1 / (15 x i d ) x 100 55 60 - % v oh ?h? output voltage 10k ohm connected between pin 17-15 14 15.3 16.5 v v ol ?l? output voltage 10k ohm connected between pin 17-15 -5.5 - -11 v t plh ?l-h? propagation time i ih = 13ma 0.2 0.4 1 s t r ?l-h? rise time i ih = 13ma - 0.4 1 s t phl ?h-l? propagation time i ih = 13ma 0.2 0.4 1 s t f ?h-l? fall time i ih = 13ma - 0.3 1 s t time r timer between start and cancel (under input sign ?l?) 1 - 2 ms i fo fault output current applied pin 20, r = 4.7k - 5 - ma t trip1 controlled time detect short circuit 1 pin 22 : 15v and more, pin 21 : open - 2.7 - s t trip2 controlled time detect short circuit 2 (*3) pin 322: 15v and more, pin 29-21,22 : 10pf (connective capacitance) - 3.1 - s v sc sc detect voltage collector voltage of module 15 - - v (*3) length of wiring of condenser controlled time detect s hort-circuit is within 5cm fr om pin 16 and 21 coming and going.
hybrid ic VLA551K-01R driver for igbt modules performance curves 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 -20 0 20 40 60 80 controlled time detect short circuit ttrip1,ttrip2(us) ambient temperature ta ttrip-ta characteristics typical vd=15v rg=3 load:c=0.2uf ttrip2(ctrip=10pf) ttrip1(ctrip=0pf) 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 0255075100 controlled time detect short circuit ttrip(us) connective capacitance ctrip(pf) (pin21-16) ttrip-ctrip characteristics typical vd=15v ta=25 4 6 8 10 12 14 16 18 20 22 24 0 0.02 0.04 0.06 0.08 0.1 v cc |v ee |(v) load current i o (a) pin v cc ,|v ee |-i o characteristics typical ta=25 dc load vd=14.2v vd=15.8v vd=15v vd=15.8v vd=14.2v vd=15v 6 8 10 12 14 16 18 20 22 24 -20 0 20 40 60 80 v cc |v ee |(v) ambient temperature ta() v cc |v ee |-ta characteristics typical v cc vd=15v rg=3 loadc=0.2uf f=10khz d.f.=50% |v ee | 0.0 0.2 0.4 0.6 0.8 1.0 -20 0 20 40 60 80 propagation delay time l-h tplh( s) propagation delay time h-l tphl( s) ambient temperature ta() tplhtphl-ta characteristics typical vd=15v rg=3 ta=25 load:c=0.2uf tplh tphl 0.0 0.2 0.4 0.6 0.8 1.0 3.5 4.0 4.5 5.0 5.5 6.0 ropagation delay time l-h tplh(s) propagation delay time h-l tphl(s) input signal voltage vi(v) tplhtphl-vi characteristics typical tplh tphl vd=15v rg=3 ta=25 load:c=0.2uf ? ? ? ? ( s) ( s)
hybrid ic VLA551K-01R driver for igbt modules 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0 20406080 gate drive current idrive(a) ambient temperature ta() idrive-ta characteristics typical vd=16.5v vd=15v rg=3 oadc=0.2uf 0 0.1 0.2 0.3 0.4 0.5 0.00 0.02 0.04 0.06 0.08 0.10 input current i d (a) load current io(a) (pin) i d -i o characteristics typical vd=15v ta=25 4 6 8 10 12 14 16 18 20 22 \ 200 20406080 h output voltage voh(v) l output voltage |vol|(v) ambient temperature ta() voh,|vol|-ta characteristics typical voh |vol| vd=15v rg=3 loadc=0.2uf f=10khz 0 10 20 30 40 50 60 70 80 0.00 0.02 0.04 0.06 0.08 0.10 efficiency ? gate drive current idrive(a) -idrive characteristics typical vd=15v ta=25 0 2 4 6 8 10 12 14 16 18 20 13 14 15 16 17 18 v cc |v ee |(v) supply voltage v d (v) v cc |v ee |-v d characteristics typical v cc |v ee | io=0.1a ta=25 40 45 50 55 60 65 70 75 13 14 15 16 17 18 efficiency ? supply voltage v d (v) -v d characteristics typical io=0.1a ta=25 ? ?
hybrid ic VLA551K-01R driver for igbt modules deffinition of characteristics (1)switching operation (2)operation of short circuit protection 10v application example v d =15v +/-5% v in =5v +/-5% c1 : 100uf (low impedance) c2 : 100uf (low impedance) c3 : 100uf (low impedance) ctrip : depend on r g cs : depend on surge voltage dz1 : 30v dz2,3 : 18v d1 : fast recovery diode (trr : 200ns max) precaution (1) voltage compensate capacitors are expected to be lo cated as close as possible to the hybrid ic. (2) minimize the area of closed ci rcuit of gate circuit so as not to be affected by induction noise. (3) d1 requires approximately the same voltage of power modules. (4) when recovery current flow in d1 , pin 22 is applied high voltage . in that case , counterplan for protecti on which insert a zener diode between pin 22 and 16 are necessary like above diagram. (5) when you make late speed of reverse bias at the time of short circ uit protection operation, please adjust and connect a c apacitor between pin 16 and 18. v i v o t phl t plh t r t f 50% 10% 90% 90% v i 0v v o 0v -5v t tri p 1 , 2 t time r pin 20 output 10v 0v 6 7 22 13 c1 17 r g VLA551K-01R 18 4.7k 16 20 1 2 3 4 3.3k 14 21 c2 c3 ctrip cs dz1 dz2 dz3 hc04 etc. v in =5v 15 d1 v in
hybrid ic VLA551K-01R driver for igbt modules start detection of short circuit gate shutdown circuit operate timer start output fault sign reset end of timer input sign is ?l? yes yes no no 1 ~ 2ms operation flow on detecting short circuit operation of protection circuit (1) in case the gate voltage is ?h? and the collector voltage is high, this hybrid ic will recognize the circuit as short circuit and immediately reduce the gate voltage . besides, put out a fault sign (?l?) which inform that protection circuit is operating at the same time from pin 20. (2) the protection circuit reset and resorted to ordinary condition if input sign is ?l? when the predetermined time(1 ~ 2ms) passed. (?l? period needs 15us or more ) (3) when the output rises, the controlled time detect short circuit (typ 2.7us) is set up so that on-time of igbt can be secured properly. it is possible to adjust that time by connecting the capacitor (ctrip) between pin 16 and 21. 0% 90% 50% t1 t2 10% vo input signal adjustment of output fall time (when the protection circuit is operating) in case you want to decrease the speed of reverse bias when the protection circuit is operating, you can adjust that speed by connecting the capacitor (cs) between pin 16 and 18. (please refer to under figures. ) note : ?l? output voltage with protection circuit operating is about vee + 2v. v d =15v ta=25deg. t1,t2 vs. cs characteristics (typical) f a l l ti m e o n a cti v i ty o f s h o r t ci r cu i t p r o te c ti o n t 1 . t 2 (u s ) connective capacitance cs (pf) (pin:27-21) 0 5 10 15 20 25 30 35 40 45 50 0 0.020.040.060.08 0.1 v cc =15v v ee = \ 10v t a =25 t 2 t 1 vd=15v ta = 2 5 (pin:18-16) (uf)
hybrid ic VLA551K-01R driver for igbt modules for safety using great detail and careful attention are given to the production ac tivity of hics, such as the development, the quality of produc tion, and in its reliability. however the reliability of hics depends not only on their own factors but al so in their condition of usage . when handling hics, please note the following cautions. cautions packing carrying storage extended storage maximum ratings polarity the materials used in packing hics can only withstand normal external conditions. when exposed to outside shocks, rain and certain env ironmental contaminators, the packing materials will deteriorates. please take care in handling. 1) don?t stack boxes too high. av oid placing heavy materials on boxes. 2) boxes must be positioned correctly during transportation to avoid breakage. 3) don't throw or drop boxes. 4) keep boxes dry. avoid rain or snow. 5) minimal vibration and shock dur ing transportation is desirable. when storing hics, please observe the following notic es or possible deteriorati on of their electrical characteristics, risk of solder ability, and external damage may occur. 1) devices must be stored where fluctuation of temperature and humidity is minimal, and must not be exposed to direct sunlight. store at the norm al temperature of 5 to 30 degrees celsius with humidity at 40 to 60%. 2) avoid locations where corrosive gasses are generated or where much dust accumulates. 3) storage cases must be static proof. 4) avoid putting weight on boxes. when extended storage is necessary, hics must be kept non-processed. when using hics which have been stored for more than one year or under severe conditions, be sure to check that the exterior is free from flaw and other damages. to prevent any electrical damages, use hics within the maximum ratings. the temperature, current, voltage, etc. must not exceed these conditions. to protect hics from destruction and deterioration due to wrong insertion, make sure of polarity in inserting leads into the board holes, conforming to the external view for the terminal arrangement.
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