tde3237 intelligent power switch advance data high output current adjustable short-circuit protection internal thermal protection with hysteresis to avoid the intermedi- ate output levels large supply voltage range: 8 to 30v description the tde3237 is a monolithic amplifier designed for high-current and high-voltage applications, specially to drive lamps, relays and stepping mo- tors. the 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 external resistor. in addition, thermal shut down is provided to keep the ic from overheating. if exter- nal dissipation becomes too great, the driver will shut down to prevent excessive heating. the output is also protected from short-circuits with the positive power supply. the device operates over a wide range of supply voltages from standard 15v operational amplifier supplies down to the single 12v or 24v used for industrial electronic systems. november 1991 t is advanced information on a new product now in development or undergoing evaluation. details are subject to change without this is advanced information on a new product now in development or undergoing evaluation. det ails are subject to ch ange without notice. pin connections minidip so14 ordering numbers: TDE3237DP tde3237fp minidip so14 1/7
absolute maximum ratings symbol parameter value unit v cc supply voltage 36 v v id differantial input voltage 36 v v i input voltage 36 v i o output current 500 ma p tot power dissipation internally limited w t stg storage temperature range C 65 to + 150 c t oper operating free-air temperature range C 25 to + 85 c thermal characteristics symbol parameter value unit r th(j-c) maximum junction-case thermal resistance (note 1) minidip 50 c/w r th(j-a) maximum junction-ambient thermal resistance (note 1) minidip 120 c/w junction-ceramic substrate (case glued to substrate) so14 90 c/w junction-ceramic substrate (case glued to substrate, substrate temperature maintened constant) so14 65 c/w note : 1. devices bonded on 40 cm glass-epoxy printed circuit 0.15cm thick with 4cm 2 of copper schematic diagram tde3237 2/7
electrical characteristics t amb = C 25 to +85 c, v cc = 8 to 30 v, unless otherwise speci- fied (note 1). symbol parameter min. typ. max. unit v io input offset voltage - (note 3) 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 common-mode input voltage range 2 C v cc C2 v i sc short-circuit current limit (t case = + 25 c, r sc = 3.3 w ) C 230 C -ma v cc Cv o output saturation voltage (output high) (r sc = 0, v i +Cv i C 3 50 mv, i o = 150 ma C 1 1.5 v i ol low level output current (v o = v cc = + 24 v t amb = + 25 c) C C 100 m a notes : 2) for operating at high temperature, the tde3237, must be derated based on a + 150 c maximum junction t emperature and a junction-ambient thermal as showed in the thermal characteristics data base. 3) 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. simplified schematic tde3237 3/7
tde3237 4/7
so14 package mechanical data 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 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 3.8 4.0 0.15 0.157 l 0.4 1.27 0.016 0.050 m 0.68 0.027 s 8 (max.) tde3237 5/7
minidip package 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 e 2.54 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 tde3237 6/7
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 license is granted by implication or otherwise under any patent or patent rights of sgs-thomson microelectronics. specifications men- tioned in this publi cation are subject to change without not ice. this publication sup ersedes and replaces all information previously supplied. sgs-thomson microelectronics products are not authorized for use as critical components in life support dev ices or systems without ex- press written approval of sgs-thomson microelectronics. ? 1994 sgs-thomson microelectronics - all rights reserved sgs-thomson microelectronics group of companies aust ralia - brazil - france - germany - hong kong - italy - japan - korea - malaysia - malta - morocco - the netherlands - singapore - spain - sweden - switzerland - taiwan - thaliand - united k ingdom - u.s.a. tde3237 7/7
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