hybrid ic VLA500-02 driver for igbt modules description VLA500-02 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 mainta in reverse bias for a predetermined time after the detection of short circuit. recommended igbt modules: v ces =600v series up to 600a class v ces =1200v series up to 1400a 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 2500vrms (for 1minute) ?ttl compatible input. applications to drive igbt modules for inverter or ac servo systems application block diagram outline drawing dimensions: mm 1 33.0max 83.0 max 4.5max 5.0max 5.0 max 11.5max 15.5max 30 2.54 21 19 30 29 regulator dc ac converter 1 2 6 23 26 interface 27 25 22 latch 28 3 4 24 v d g i 7 v i + v i - 90% 180 ohm detect circuit timer &reset circuit gate shut- down circuit detect pin vcc fault output ttrip control pin 20 gnd vo shut-down speed control collector v ee
hybrid ic VLA500-02 driver for igbt modules maximum ratings (unless otherwise noted, ta=25c) symbol parameter conditions ratings unit v d supply voltage dc -1 26.4 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 -12 a i olp output current pulse width 2s 12 a viso isolation voltage sine wave voltage 60hz, for 1min. 2500 vrms t c 1 case temperature1 surface temperature(opto-coupler mounting part) (*3) 85 c t c 2 case temperature2 surface temperature(ex cepting opto-coupler mounting part) 100 c topr operating temperature no condensation allowable -20 ~ +60 c tstg storage temperature no condensation allowable -25 ~ +100 (*1) c i fo fault output current applied pin 28 20 ma v r30 input voltage to pin 30 applied pin 30 50 v i drive gate drive current gate average current 210 (*2) ma (*1) differs from h/c condition (*2) refer to idrive-ta characteristics (needs derating) (*3) refer to the below figure. electrical characteristics (unless otherwise noted, ta=25c, v d =15v, r g =2.2 ohm) limits symbol parameter conditions min typ max unit v d supply voltage recommended range 22.8 24 25.2 v v in pull-up voltage on input side recommended range 4.75 5 5.25 v i ih ?h? input current recommended range 15.2 16 19 ma switching frequency recommended range - - 20 khz r g gate resistance recommended range 1 - - ohm i ih ?h? input current v in = 5v - 16 - ma vcc gate positive supply voltage D 15.2 - 17.5 v v ee gate negative supply voltage D -6 - -11.5 v eta gate supply efficiency load current = 210ma eta = (vcc+lv ee l) x 0.21 / (15 x i d ) x 100 60 70 % v oh ?h? output voltage 10k ohm connected between pin 23-20 14 15.3 16.5 v v ol ?l? output voltage 10k ohm connected between pin 23-20 -5.5 - -11 v t plh ?l-h? propagation time i ih = 16ma 0.3 0.6 1 s t r ?l-h? rise time i ih = 16ma - 0.3 1 s t phl ?h-l? propagation time i ih = 16ma 0.6 1 1.3 s t f ?h-l? fall time i ih = 16ma - 0.3 1 s t timer timer between start and cancel (under input sign ?l?) 1 - 2 ms i fo fault output current applied pin 28, r = 4.7k ohm - 5 - ma t trip1 controlled time detect short circuit 1 pin 30 : 15v and more, pin 29 : open - 2.8 - s t trip2 controlled time detect short circuit 2 (*4) pin 30 : 15v and more, pin 29-21,22 : 10pf (connective capacitance) - 3.2 - s v sc sc detect voltage collector voltage of module 15 - - v (*4) length of wiring of condenser controll ed time detect short-circuit is within 5cm from pin 21,22 and 29 coming and going. marking side tc1 measurement point (opto-coupler mounting part)
hybrid ic VLA500-02 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 : 1mf (low impedance) c3 : 1mf (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 located as close as possible to the hybrid ic. (2) minimize the area of closed circuit of gate ci rcuit 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 30 is applied high voltage . in that case , counterplan for protecti on which insert a zener diode between pin 21,22 and 30 are necessary like above diagram. v in 6pin example of input circuit hc04 etc. 6 7 30 19 c1 24 r g VLA500-02 27 4.7k ohm 26 21 22 28 1 2 3 4 3.3k ohm cm1400du-24nf etc. 23 25 29 c2 c3 ctrip cs dz1 dz2 dz3 cmos etc. 20 d1 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 28 output 10v 0v
hybrid ic VLA500-02 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 28 . (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 2.8us) 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 21,22 and 29. 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, y ou can adjust that speed by connecting the capacitor (cs) between pin 21,22 and 27. (please refer to under figures. ) note : ?l? output voltage with protection circuit operating is about vee + 2v. 0 5 10 15 20 25 30 35 40 45 50 0 100 200 300 400 500 600 700 800 connective capacitance cs(pf) (pin:27-21) fall time on activity of short circuit protection t1. t2 (us) t1 t2 v d =15v ta=25deg. t1,t2 vs. cs characteristics (typical)
hybrid ic VLA500-02 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 it?s reliability. however the reliabi lity of hics depends not only on their own fact ors but also in their condition of usag e. 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 te mperature and humidity is minimal, and must not be exposed to direct sunlight. store at the normal 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.
hybrid ic VLA500-02 driver for igbt modules marketing division, mark eting planning department 6-41 tsukuba, isahaya, nagasaki, 854-0065 japan jan.2011 keep safety first in your circuit designs! isahaya electronics corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with t hem. trouble with semiconductors ma y lead to personal injury, fir e or property damage. remember to give due consideration to safe ty when making your circuit desi gns, with appropriate measures such as (1) placement of substitutive , auxiliary circuits, (2) use of non-flamm able material or (3) prevention against any malfunction or mishap. notes regarding these materials these materials are intended as a reference to our customers in the selection of the isahaya products best suited to the customer?s application; they don't convey any license under any intellectual property rights, or any other rights, belonging t o isahaya or a third party. isahaya electronics corporation assumes no responsibility for any damage, or infringement of any third party's rights, originating in the use of any product data, diagrams, charts or circuit application examples contained in these materials. all information contained in these materi als, including product data, diagrams and ch arts, represent information on products at the time of publication of these materials, and are subj ect to change by isahaya electronics corporation without notice due to product improvements or other reasons. it is theref ore recommended that customers contact isahaya electronics corporation or an authorized isahaya products distributor for the latest product information before purchasing product listed herein. isahaya electronics corporation products are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at st ake. please contact isahaya electronics corporation or an authorized isahaya products distributor when considering the us e of a product contained herein fo r any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use. the prior written approval of isahaya electr onics corporation is necessary to reprint or reproduce in whole or in part these materials. if these products or technologies are subject to the japanese export control re strictions, they must be exported under a license from the japanese government and cannot be impor ted into a country other than the approved destination. any diversion or re-export contrary to the export control la ws and regulations of japan and/or the country of destination is prohibited. please contact isahaya electronics corpor ation or authorized isahaya products di stributor for further details on these materials or the products contained therein.
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