3.5 - 129 3.5 isolated hermetic surface mount package 1.0 amp, negative adjustable voltage regulator 4 11 r1 supersedes 1 05 r0 surface mount negative adjustable 1.0 amp voltage regulator features ? isolated hermetic surface mount package ? adjustable output voltage ? eliminates stocking fixed voltages ? built-in thermal overload protection ? short circuit current limiting ? product is available hi-rel screened ? electrically similar to industry standard type lm137 description this three terminal negative regulator is supplied in a hermetically sealed metal surface mount package. all protective features are designed into the circuit, including thermal shutdown, current limiting and safe-area control. with heat sinking, they can deliver over 1.0 amp of output current. this unit features output voltages that can be trimmed using external resistors, from -1.2 volts to -37 volts. absolute maximum ratings input to output voltage differential ........................................40v operating junction temperature range ........................- 55 c to + 150c storage temperature range .................................- 55 c to + 150c typical power/thermal characteristics: rated power @ 25c t c .......................................................... 17.5w t a .............................................................3w thermal resistance: jc ........................................................3.5c/w ja ........................................................42c/w lead temperature at case (5 sec) .................................225c OM7636SM
OM7636SM 3.5 electrical characteristics -55c t a 125c, i l = 8ma (unless otherwise specified) parameter symbol test conditions min. max. unit reference voltage v ref ? v diff ? = 3.0v, t a = 25c -1.275 -1.225 ? v diff ? = 3.0v ? -1.30 -1.20 v ? v diff ? = 40v, t a = 25c -1.275 -1.225 ? v diff ? = 40v ? -1.30 -1.20 line regulation r line 3.0 v ? v diff ? 40v, t a = 25c -9 9 (note 1) 3.0 v ? v diff ? 40v ? -23 23 mv load regulation r load ? v diff ? = 5.0v, 8ma i l 1.5a ? -25 25 (note 1) ? v diff ? = 12v, 8ma i l 1.5a, t a = 25c -25 25 mv ? v diff ? = 40v, 8ma i l 200ma, t a = 25c -25 25 ? v diff ? = 40v, 8ma i l 100ma ? -25 25 thermal regulation v rth v in = -14.6v, i l = 1.5a -5 5 mv p d = 20 watts, t = 20 ms, t a = 25c ripple rejection r n f = 120 hz, v out = v ref ? 66 db (note 2) c adj = 10 f adjustment pin current i adj ? v diff ? = 3.0v ? 100 ? v diff ? = 40v ? 100 a adjustment pin ?i adj (line) 3.0v ? v diff ? 40v ? -5 5 a current change ?i adj (load) ? v diff ? = 5v, 8ma i l 1.5a ? -5 5 a miminum load current i lmin ? v diff ? = 3.0v, v out = -1.4v (forced) ? 3.0 ? v diff ? = 10v, v out = -1.4v (forced) ? 3.0 ma ? v diff ? = 40v, v out = -1.4v (forced) ? 5.0 current limit i cl ? v diff ? 5v ? 1.5 3.5 (note 2) ? v diff ? = 40v, t a = 25c 0.24 1.2 a notes: 1. load and line regulation are specified at a constant junction temperature. pulse testing with low duty cycle is used. changes in output voltage due to heating effects must be taken into account separately. 2. if not tested, shall be guaranteed to the specified limits. 3. the ? denotes the specifications which apply over the full operating temperature range. mechanical outline .425 .200 .100 .350 min. .080 .160 .020 .020 .035 wide flat 3 plcs. .115 .425 pin connection ,kp a 5 h ,kp t jfb.rs ,kp i 5 ro dcru hrmicsuf 2 3 1
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