hybrid ic VLA526A-06AR hybrid ic for driving igbt modules description the VLA526A-06AR is the 6-element gate driver for a 400vac 3 phase inverter. 3 circuits of high side are isolated between input and output and the power supplies consist of the inside. this hybrid ic can be driven by input voltage of 2 lines (+15v and +5v). by connecting the resistor for current detection between b-n, this hybrid ic can detect an over-current, and can cut off each gate signal. the low side of an input part has a timing revision circuit that can revise time lag with the signal of high side and this hybrid ic can realize the optimum inverter drive. recommended igbt module: v ces =1200v/ up to 25a class features ?supply voltage +5v, +15v ?high side isolation voltage 2500vrms, for 1 min ?the power supply for a high side gate drive and the electr olysis capacitor for voltage compensation are unnecessary. ?sil structure, 6-circuit driver built -in, it saves area on mother board. ?recommended switching frequency range is up to 3khz. applications igbt drive for 3 phase inverter etc. block diagram outline drawing dimensions: mm u p timer oscillator buffer 4.7uf 19 20 21 22 23 24 25 26 1 2 6 7 11 12 16 17 18 27 drive circuit oscillator buffer oscillator buffer timing revision circuit drive circuit 30 29 28 comparator with hysteresis v p w p u n v n w n f o c in v cc1 v cc2 gnd gnd2 w ng v ng u ng w ps w pg v ps u ps v pg u pg drive circuit drive circuit drive circuit comparator with hysteresis drive circuit comparator with hysteresis timing revision circuit timing revision circuit mark 88.0max 7.5max 7.5max 2.54 0.5 +0.15/-0.1 30 1 41.5max 3.5+/-0.7 4.0max 9.5max 13.0max 0.25 +0.2/-0.1
hybrid ic VLA526A-06AR hybrid ic for driving igbt modules 2 maximum ratings (unless otherwise noted, ta=25c) symbol parameter conditions ratings unit v cc1 input voltage 1 dc, between pins 30 and 28 -0.3 ~ 18 v v cc2 input voltage 2 dc, between pins 29 and 28 -0.5 ~ 5.5 v v in, v cin input/error signal voltage between pins 19, 20, 21, 22, 23, 24, 26 and 28 -0.5 ~ +6 v v iso 1 isolation voltage1 ac, 1min, r.h.<50%. between input and output of high side. 2500 vrms v iso 2 isolation voltage2 ac, 1min, r.h.<50%. between each high side output. 2500 vrms t c case temperature ? 95 c t opr operating temperature no condensation -20 ~ +70 c t stg storage temperature no condensation -25 ~ +100 c electrical characteristics (unless otherwise noted, ta=25c, v cc1 = 15v, v cc2 = 5v, f = 3khz, d.f. = 50%, cl = 0.01f) symbol item conditions limits unit min typ max v cc1 input voltage 1 recommended range 14.5 15.0 17.0 v v cc2 input voltage 2 recommended range 4.75 5.0 5.25 v f switching frequency recommended range ? ? 3 khz v oh ?h? output voltage v in : ?l? and f o : ?h?, i o = 0a 13.5 14.5 18 v v ol ?l? output voltage v in : ?h or f o : ?l, i o = 0a ? 0.6 1.4 v t plhp ?l-h? propagation time: high side (*) v in : ?l? and f o : ?h?, output open 0.75 2.2 ? s t phlp ?h-l? propagation time: high side (*) v in : ?h? or f o : ?l?, output open ? 1.7 2.6 s t rp ?l-h? rise time: high side v in : ?l? and f o : ?h? 1.1 2.5 ? s t fp ?h-l? fall time: high side v in : ?h? or f o : ?l? ? 0.8 1.4 s t plhn ?l-h? propagation time: low side v in : ?l? and f o : ?h?, output open 0.4 0.7 ? s t phln ?h-l? propagation time: low side v in : ?h? or f o : ?l?, output open ? 0.9 1.4 s t rn ?l-h? rise time: low side v in : ?l? and f o : ?h? 1 1.6 ? s t fn ?h-l? fall time: low side v in : ?h? or f o : ?l? ? 0.4 0.8 s t p minimum off-pulse width ? 4 ? ? s rg (on)p inside gate resistor 1 turn-on, ?h?output, high side ? 20 ? ? rg (off)p inside gate resistor 2 turn-off, ?l? output, high side ? 10 ? ? rg (on)n inside gate resistor 3 turn-on, ?h?output, low side ? 33 ? ? rg (off)n inside gate resistor 4 turn-off, ?l? output, low side ? 15 ? ? v foh ?h? level f o output voltage normal mode ? ? v cc2 v v fol ?l? level f o output voltage short-circuit protection oper ation mode ? 0.2 0.8 v t d set time for timer pin 26 0.5v ? 1.0 5.1 s t timer timer maintenance time of protection mode, the period of f o output ?l?. t d 6.5s. 70 ? ? s (*) the time is t d + t phl to cut off gate output after reaching v cin < 0.5v.
hybrid ic VLA526A-06AR hybrid ic for driving igbt modules 3 difinition of characteristics (1) normal switching mode (2) protection operation mode application circuit v o v in t phl t plh t r t f 90% 50% 10% v oh v ol 50% t t t timer t d v fo v o v cin v cc2 0.5v t t phl 50% 3v u p v p w p u n v n w n f o u pg u ps v pg v ps u ng w pg w ps v ng w ng +15v +5v 0v VLA526A-06AR cpu control circuit m ~ over-current detection circuit c in u p v p w p u n v n w n f o + gnd2
hybrid ic VLA526A-06AR hybrid ic for driving igbt modules 4 VLA526A-06AR u v w + r s t 1 2 6 7 11 12 u pg u ps v pg v ps w pg w ps 30 29 v cc2 r sh 26 cin over-current detection circuit cpu 19 20 21 22 23 24 25 28 u p v p w p u n v n w n f o gnd1 16 17 u ng v ng 18 w ng gnd2 27 + v cc1
hybrid ic VLA526A-06AR hybrid ic for driving igbt modules 5 protection operation mode this hybrid ic has the protection operation function, and it wo rks by detecting the both-ends voltage of the current detection resistor (rs) that is connected between the inverter and converter. (refer to the following figure) specifically, in following procedure, this hybrid ic suspends the all gate output for timer time when unusual. detection of the voltage generated by unusual current (ierror) which flows resistor (rs) when unusual, such as a short-circ uit in an inverter main circu it etc. (rs ? ierror) the detection voltage and the standard voltage (voc) are com pared, and when unusual, the circuit that outputs ?l? is co nstituted and that output is connected to pin 26 of this hybrid ic. in addition, protection operation is started only when unusual output ?l? is held for 5. 1s (max: set time of timer), and by th e time it starts protection operation there is delay time fo r max 7.7s. moreover, according the current sink capability of a comparator, set ti me of timer may become long. the length of the timer time in the protection ope ration mode changes according to unusual judging time, and timer time also becomes longer as an unusual period excels. (cautions) as the comparator for over-current detection, it must be open-collector type. in case of a totem-pole type comparat or, a timer circuit becomes invalid. timer com 26 VLA526A-06AR protection circuit rs vo c - + the comparator for over-current detection over-current detection circuit 28 an example for external circ uit to detect over current
hybrid ic VLA526A-06AR hybrid ic for driving igbt modules 6 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 also in their conditio n 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 onl y withstand normal external conditions. when exposed to outside shocks, rain and cert ain environmental 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 solderability , 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 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 with in the maximum ratings. the temperaqture, 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. power module division keep safety first in your circuit designs! ? isahaya electronics corporation puts the maximum effort in to making semiconductor produc ts better and more reliable, but there is always the possibility that trouble may o ccur with them. trouble with semi conductors may lead to personal injury, fire or property damage. remember to give due consideration to safety when making your circuit designs, with appropreatemeasures such as (1)placement of substituti ve, auxiliary, (2)use of non-frammable 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 licens e under any intellectual property rights, or any other rights, belong ing isahaya or 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, c harts or circuit application exampl es contained in these materials ? all information contained in these materi als, including product data, diagrams and c harts, represent information on products at the time of publication of these materials, and ar e subject to change by isahaya el ectronics coporation without notice due to product improvements or other reasons. it is therefore recommended that custom ers contact isahaya electronics corporationor or an autorized isahaya products distri butor for the latest product infomationj before purchasing product l isted 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 stake. please contact isahaya electronics corporation or an authorized isahaya products distributor when considering the use of a product contained her ein for any specific perposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or un dersea 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 restrictions, they must be exported under a lisence from the japanese gover nment and cannot be imported into a count ry other than the approved destination. jan.2012
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