ht0740 doc.# dsfp-ht0740 b060413 features ? 400v input to output isolation ? low input logic current, 500a max ? no external voltage supply required ? floating isolated output drivers ? 5.0v logic compatible applications ? telec ommunications ? modems ? solid state relays ? high side switches ? high end audio switches ? avionics ? ate general description the s upertex ht0740 is a single channel, high voltage, low input current, isolated driver utilizing supertexs proprietary hvcmos ? technology. it is designed to drive discrete mosfets, confgured as high side switches, up to 400v. the ht0740 generates an independent dc isolated voltage across the pair of outputs when the logic input is at a logic high. the ht0740 does not require any external power supplies. the internal supply voltage is supplied from the logic input when it is in the high state. block diagram high voltage, isolated mosfet driver v iso r = 158k 47% logic & internal clock driver + vout - isolation barrier 10r r r 4 3 1 7 vin gnd supertex inc. supertex inc. www .supertex.com
2 ht0740 doc.# dsfp-ht0740 b060413 absolute maximum ratings parameter value input to output isolation voltage, v iso 400v logic input voltage, v in -0.5 to +7.0v operating temperature -40c to +85c storage temperature -55c to +150c absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these conditions is not implied. continuous operation of the device at the absolute rating level may affect device reliability. all voltages are referenced to device ground. pin confguration recommended operating conditions sym parameter min typ max units conditions v ih logic input high voltage 3.15 - 5.5 v --- v il logic input low voltage 0 - 0.5 v --- t a operating temperature -40 - +85 o c --- dc electrical characteristics i h logic high input current - - 500 a v in = 5.0v i l logic low input current (quiescent) - - 10 a v in = 0.5v v out output voltage across output terminals 4.5 - - v v in = 3.15v, no load 8.5 - - v v in = 4.50v, no load v in input voltage for zero output - - 0.8 v no load v iso input to output isolation voltage 400 - - v --- ac electrical characteristics t d(on) turn-on delay time - - 50 s see timing diagram and test circuit c l = 600pf, t a = 25c t r rise time - - 650 s t d(off) turn-off delay time - - 150 s t f fall time - - 3.0 ms vin nc -vout +vout 1 2 3 4 8 7 6 5 nc gnd nc nc yy = year sealed ww = week sealed l = lot number = ?green? packaging yyww ht07 llll product marking 8-lead soic (narrow body) (top view) 8-lead soic (narrow body) package may or may not include the following marks: si or ordering information part number package option packing ht0740lg-g 8-lead soic (narrow body) 2500/reel typical thermal resistance package ja 8-lead soic (narrow body) 101 o c/w -g denotes a lead (pb)-free / rohs compliant package supertex inc. www .supertex.com
3 ht0740 doc.# dsfp-ht0740 b060413 90% 10% 50% 50% 90% 10% 4.5v 0v v out t d(on) t r t d(off) t f v in timing diagram test circuit ht0740 1 7 vin gnd + vout - c l = 600pf 4 3 v out 4.5v 0v supertex inc. www .supertex.com
4 ht0740 (the package drawing(s) in this data sheet may not refect the most current specifcations. for the latest package outline information go to http://www.supertex.com/packaging.html .) doc.# dsfp-ht0740 b060413 8-lead soic (narrow body) package outline (lg) 4.90x3.90mm body, 1.75mm height (max), 1.27mm pitch 1 8 seating plane gauge plane l l1 l2 e e1 d e b a a2 a1 seating plane a a t op vi ew side v iew vi ew b v iew b 1 note 1 (index area d/2 x e1/2) vi ew a-a h h note 1 symbol a a1 a2 b d e e1 e h l l1 l2 1 dimension (mm) min 1.35* 0.10 1.25 0.31 4.80* 5.80* 3.80* 1.27 bsc 0.25 0.40 1.04 ref 0.25 bsc 0 o 5 o nom - - - - 4.90 6.00 3.90 - - - - max 1.75 0.25 1.65* 0.51 5.00* 6.20* 4.00* 0.50 1.27 8 o 15 o jedec registration ms-012, variation aa, issue e, sept. 2005. * this dimension is not specifed in the jedec drawing. drawings are not to scale. supertex doc. #: dspd-8solgtg, version i041309. note: 1. this chamfer feature is optional. a pin 1 identifer must be located in the index area indicated. the pin 1 identifer can be: a molded mark/identifer; an embedded metal marker; or a printed indicator. supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such appl ications unless it receives an adequate ?product liability indemnification insurance agreement.? supertex inc. does not assume responsibility for use of devices described, and limits its liabilit y to the replacement of the devices determined defective due to workmanship. no responsibility is assumed for possible omissions and inaccuracies. circuitry and specifications are subject to change without notice. for the latest product specifications refer to the supertex inc. (website: http//www .supertex.com) ?2013 supertex inc. all rights reserved. unauthorized use or reproduction is prohibited. supertex inc. 1235 bordeaux drive, sunnyvale, ca 94089 t el: 408-222-8888 www .supertex.com
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