tde1737 tdf1737 september 2003 interface circuit - relay and lamp-driver ? . high output current . adjustable short-circuit protec- tion . thermal protection with hysteresis to avoid the intermediate output lev- els . large supply voltage range : + 8 v to + 45 v description the tde1737-tdf1737 is a monolithic amplifier designed for high current and high voltage applica- tions, specifically to drive lamps, relays and control of stepper motors. this device is essentially blow-out proof. current limiting is available to limit the peak output current to a safe value, the adjustment only requires one ex- ternal resistor. in addition, thermal shut down is pro- vided to keep the i.c. from overheating. if internal dissipation becomes too great, the driver will shut down to prevent excessive heating. the output is also protected against short-circuits with the positive power supply. the device operates over a wide range of supply voltages from standard 15 v operational amplifier supplies down to the single + 12 v or + 24 used for industrial electronic systems. minidip dp suffix so14 fp suffix order codes part number temperature range package dp fp tde1737 tdf1737 C 25 c to + 85 c C 40 c to + 85 c example : tde1737dp pin connections (top views) so-14 minidip 1/7
absolute maximum ratings symbol parameter value unit v s supply voltage 50 v v i input voltage 50 v v id differential input voltage 50 v i o output current 1000 ma p tot power dissipation internally limited w t oper operating freeCair temperature range for tde1737 C 25 to + 85 c t oper operating freeCair temperature range for tdf1737 C 40 to + 85 c t stg storage temperature range C 65 to + 150 c thermal characteristics symbol parameter value unit r th(j-c) maximum junction-case thermal resistance minidip 50 c/w r th(j-a) maximum junction-ambient thermal resistance minidip 120 c/w junction-ceramic substrate (case glued to substrate) so14 90 c/w electrical characteristics tde1737 C 25 c t amb + 85 c, + 8 v v cc + 45 v, i o 300 ma, t j + 150 c (unless otherwise specified) tdf1737 C 40 c t amb + 85 c, + 8 v v cc + 45 v, i o 300 ma, t j 150 c symbol parameter min. typ. max. unit v io input offset voltage C (note 1) C 2 50 mv i ib input bias current C 0.1 1.5 m a i cc supply current (v cc = + 24 v, i o = 0) C 3 5 ma v cm commonCmode input voltage range 2 C v cc C2 v i sc shortCcircuit current limit (r sc = 1.5 w , t case = + 25 c) C500Cma v cc Cv o output saturation voltage (output low) (v i + C v i C 3 50 mv i o = 300 ma, r sc = 0) C11.5v i ol output leakage current (output high) (v o = v cc = + 24 v, t amb = + 25 c) CC10 m a notes : 1. the offset voltage given is the maximum value of input voltage required to drive the output voltage within 2 v of the ground or the supply voltage. 2. devices bonded on a 40 cm 2 glass-epoxy printed circuit 0.15 cm thick with 4 cm 2 of cooper. tde1737 - tdf1737 2/7
schematic diagram simplified schematic typical application - tde1737 - tdf1737 3/7
tde1737 - tdf1737 4/7
so14 dim. mm inch min.. typ. max.. min.. typ.. max.. a 1.75 0.069 a1 0.1 0.25 0.004 0.009 a2 1.6 0.063 b 0.35 0.46 0.014 0.018 b1 0.19 0.25 0.007 0.010 c 0.5 0.020 c1 45? (typ.) d (1) 8.55 8.75 0.336 0.344 e 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 7.62 0.300 f (1) 3.8 4 0.150 0.157 g 4.6 5.3 0.181 0.209 l 0.4 1.27 0.016 0.050 m 0.68 0.027 s8? (1) d and f do not include mold flash or protrusions. mold flash or potrusions shall not exceed 0.15mm (.006inch). outline and mechanical data (max.) tde1737 - tdf1737 5/7
outline and mechanical data dim. mm inch min. typ. max. min. typ. max. a 3.32 0.131 a1 0.51 0.020 b 1.15 1.65 0.045 0.065 b 0.356 0.55 0.014 0.022 b1 0.204 0.304 0.008 0.012 d 10.92 0.430 e 7.95 9.75 0.313 0.384 e2.54 0.100 e3 7.62 0.300 e4 7.62 0.300 f 6.6 0.260 i 5.08 0.200 l 3.18 3.81 0.125 0.150 z 1.52 0.060 minidip tde1737 - tdf1737 6/7
information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsib ility for the conse- quences of use of such information nor for any infringement of patents or other rights of third parties which may result from i ts use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentione d in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmi- croelectronics products are not authorized for use as critical components in life support devices or systems without express wr itten approval of stmicroelectronics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners ? 2003 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia C belgium - brazil - canada - china C czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states www.st.com tde1737 - tdf1737 7/7
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