TDA8136 dual 12v regulator with disable september 1993 7 6 5 4 3 2 1 tab connected to pin 4 output 1 output 2 n.c. ground disable input 2 input 1 8136-01.eps pin connections heptawatt (plastic package) order code : TDA8136 . output currents up to 600ma . fixed precision output 1 voltage 12v 2% . fixed precision output 2 voltage 12v 2% . output 2 voltage disabled by a ttl input . short circuit protection at both outputs . thermal protection . low drop out 1.5v at 400ma . high supply voltage rejection description the TDA8136 is a monolithic dual positive voltage regulator designedto provide fixed precision output voltages, both 12v at currents up to 600ma. output 2 can be disabled by a ttl input. both output currents are limited by an internal short circuit protection. 1/5
1 2 4 3 5 6 7 disable v in1 n.c. v in2 v o1 v o2 ground regulator 2 regulator 1 reference voltage thermal protection 8136-02.eps block diagram absolute maximum ratings symbol parameter value unit v in1, 2 dc input voltages 24 v v dis disable input voltage pin 3 24 v i o1, 2 output currents internally limited p t power dissipation internally limited t stg storage temperature 65 to + 150 c t j junction temperature 0 to + 150 c 8136-01.tbl thermal data symbol parameter value unit r th(j-c) thermal resistance junction-case max. 3 c/w 8136-02.tbl electrical characteristics (v in1,2 = 14v ; v dis = 2.5v ; i o1,2 =0;t j =25 o c unless otherwise specified) symbol parameter test conditions min. typ. max. unit v o1 output voltage at pin 7 11.76 12 12.24 v v o2 output voltage at pin 6 11.76 12 12.24 v i q1 quiescent current v in2 =0,v dis =0 i o1 = 10ma, (see fig. 1) 2ma i q2 quiescent current i o2 = 10ma (see fig. 1) 2 ma v in1 -v o1 drop out voltage 1 i o1 = 400ma 1.5 v v in2 -v o2 drop out voltage 2 i o2 = 400ma 1.5 v d v o1li line regulation 1 14v < v in1 <18v, i o1 = 200ma 120 mv d v o2li line regulation 2 14v < v in2 <18v, i o2 = 200ma 120 mv d v o1lo load regulation 1 0 < i o1 <600ma 240 mv d v o2lo load regulation 2 0 < i o2 <600ma 240 mv 8136-03.tbl TDA8136 2/5
electrical characteristics (continued) (v in1,2 = 14v ; v dis = 2.5v ; i o1,2 =0;t j =25 o c unless otherwise specified) symbol parameter test conditions min. typ. max. unit i o1sc short circuit current 1 14v < v in1 <18v 1.3 a i o2sc short circuit current 2 14v < v in2 <18v 1.3 a v dish disable voltage high at pin 3 2 v v disl disable voltage low at pin 3 0.8 v i dish bias current at pin 3 v dis = 5.3v 10 m a i disl bias current at pin 3 v dis = 0.4v 80 m a svr 1 supply voltage rejection 1 (see note 1) v in1 = 16v dc +1v pp sin f = 120hz, i o1 = 200ma 50 db svr 2 supply voltage rejection2 (see note 1) v in2 = 16v dc +1v pp sin f = 120hz, i o2 = 200ma 50 db i q quiescent current v in1 =v in2 =14v dc i o1 =i o2 =200ma (see fig. 1) 6ma t jsd thermal shut-down junction temperature 145 c 8136-04.tbl note 1 : svr supply voltage rejection : 20 ? log ? ? ? ? v in ac v o ac ? ? ? where : v in ac is the value of the sinusoidal signal forced at the input. (120hz, 1v pp ) v oac is the peak-peak ripple voltage present at the output 1 2 4 35 6 7 10 m f v in1 10 m f v in2 v dis 10 m f r 01 v 01 v 02 i 01 i 02 r 02 10 m f i q g i dis regulator 1 reference voltage thermal protection regulator 2 8136-03.eps figure 1 : test circuit TDA8136 3/5
3 4 26 7 1 v in1 v in2 v 01 v 02 disable c1 c2 c3 c4 c1 to c4 = 10 m f TDA8136 8136-04.eps typical application circuit description the TDA8136 is a dual voltage regulator with dis- able. the two regulation parts are supplied from one vol-tage reference circuit, trimmed by zener zap during ews test. since the supply voltage of this last is connected at pin 1 (v in1 ), the regulator 2 will not work if the pin 1 is not supplied. it is possible to switch-off the output voltage 2 (v o2 ) by appling at pin 3 (disable input) a low ttl level. TDA8136 4/5
l2 l3 l5 l7 l6 dia. a c d e d1 h3 h2 f g g1 g2 l1 l mm1 f1 pm-heptv.eps package mechanical data 9 pins - plastic heptawatt information furnished is believed to be accurate and reliable. however, sgs-thomson microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no licence is granted by implication or otherwise under any patent or patent rights of sgs-thomson microelectronics. specifications mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. sgs-thomson microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of sgs-thomson microelectronics. ? 1994 sgs-thomson microelectronics - all rights reserved purchase of i 2 c components of sgs-thomson microelectronics, conveys a license under the philips i 2 c patent. rights to use these components in a i 2 c system, is granted provided that the system conforms to the i 2 c standard specifications as defined by philips. sgs-thomson microelectronics group of companies australia - brazil - china - france - germany - hong kong - italy - japan - korea - malaysia - malta - morocco the netherlands - singapore - spain - sweden - switzerland - taiwan - thailand - united kingdom - u.s.a. dimensions millimeters inches min. typ. max. min. typ. max. a 4.8 0.189 c 1.37 0.054 d 2.4 2.8 0.094 0.110 d1 1.2 1.35 0.047 0.053 e 0.35 0.55 0.014 0.022 f 0.6 08 0.024 0.031 f1 0.9 0.035 g 2.41 2.54 2.67 0.095 0.100 0.105 g1 4.91 5.08 5.21 0.193 0.200 0.205 g2 7.49 7.62 7.8 0.295 0.300 0.307 h2 10.4 0.409 h3 10.05 10.4 0.396 0.409 l 16.97 0.668 l1 14.92 0.587 l2 21.54 0.848 l3 22.62 0.891 l5 2.6 3 0.102 0.118 l6 15.1 15.8 0.594 0.622 l7 6 6.6 0.236 0.260 m 2.8 0.110 m1 5.08 0.200 dia. 3.65 3.85 0.144 0.152 heptv.tbl TDA8136 5/5
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