uc1610 UC2610 uc3610 description this eight-diode array is designed for high-current, low duty-cycle applications typical of flyback voltage clamping for inductive loads. the dual bridge connection makes this device particularly applicable to bipolar driven stepper motors. the use of schottky diode techn ology features high efficiency through lowered for - ward voltage drop and decreased reverse recovery time. this single monolithic chip is fabricated in both hermetic cerdip and copper- leaded plastic packages. the uc1610 in ceramic is designed for -55c to +125c environments but with reduced peak current capability. the UC2610 in plastic and ceramic is designed for -25c to +125c environments also with reduced peak current capability; while the uc3610 in plastic has higher current rating over a 0c to +70c temperature range. dual schottky diode bridge features monolithic eight-diode array exceptional efficiency low forward voltage fast recovery time high peak current small size absolute maximum ratings peak inverse voltage (per diode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50v peak forward current uc1610 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1a UC2610 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1a uc3610 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3a power dissipation at t a = +70c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1w storage temperature range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65c to +150c lead temperature (soldering, 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300c note: consult packaging section of databook for thermal limitations and considerations of package. connection diagrams soic-16 (top view) dw package dil-8 (top view) n or j package plcc-20 (top view) q package 3/95
parameter test conditions min typ max units forward voltage drop i f = 100ma 0.35 0.5 0.7 v i f = 1a 0.8 1.0 1.3 v leakage current v r = 40v .01 0.1 ma v r = 40v, t j = +100c 0.1 1.0 ma reverse recovery 0.5a forward to 0.5a reverse 15 ns forward recovery 1a forward to 1.1v recovery 30 ns junction capacitance v r = 5v 70 pf note: at forward currents of greater than 1.0a a parasitic current of approximately 10ma may be collected by adjacent diodes. uc1610 UC2610 uc3610 electrical characteristics: all specifications apply to each individual diode. t j = 25c except as noted. t a = t j. unitrode integrated circuits 7 continental blvd. merrimack, nh 03054 tel. (603) 424-2410 fax (603) 424-3460 reverse current vs vo ltage forward current vs voltage forward recovery characteristics reverse recovery characteristics 2
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