l293c april 1993 h-bridge driver preliminary data push-pull four channel/dual . 600 ma output current capability per channel . 1.2 a peak outputcurrent (non repetitive) per channel . enable facility . overtemperature protection . logical o0o input voltage up to 1.5 v (high noise immunity) . separate high voltage power supply (up to 44 v) description the l293c is a monolithic high voltage,high current integrated circuit four channel driver in a 20 pin dip. it is designed to accept standard ttl or dtl input logic levels and drive inductive loads (such as re- lays, solenoids, dc and stepping motors) and switching power transistors. the device may easily be used as a dual h-bridge driver : separate chip enable and highvoltage power supply pins are provided for each h-bridge. in addi- tion, a separate power supply is provided for the logic section of the device. the l293c is assembled in a 20 lead plastic pack- age which has 4 centerpins connected togetherand used for heatsinking. powerdip (16 + 2 + 2) ordering number : l293c pin connection 1/5
block diagram truth table input enable output h l x h h l h l z z = high output impedance switching times l293c 2/5
absolute maximum ratings symbol parameter value unit v s supply voltage 50 v v ss logic supply voltage 7 v v i input voltage 7 v v en enable voltage 7 v i out peak output current (nonrepetitive t = 5 ms) 1.2 a p tot total power dissipation at t groundpins =80 o c5w t stg ,t j storage and junction temperature 40 to 150 o c thermal data symbol parameter value unit r th j-case thermal resistance junction-case max. 14 o c/ w r th j-amb thermal resistance junction-ambient max. 80 o c/ w electrical characteristics ( for each channel, v s = 24 v, v ss = 5v,t amb = 25 o c, unless otherwise specified) symbol parameter test conditions min. typ. max. unit v s supply voltage (pin 9, 10) v ss 44 v v ss logic supply voltage (pin 20) 4.5 7 v i s total quiescent supply current (pin 9, 10) v i =l i o =0 v en =h v i =h i o =0 v en =h v en =l 2 16 6 24 4 ma i ss total quiescent logic supply current (pin 20) v i =l i o =0 v en =h v i =h i o =0 v en =h v en =l 44 16 16 60 22 24 ma v il input low voltage (pin 2, 8, 12, 19) -0.3 1.5 v v ih input high voltage (pin 2, 8, 12, 19) 2.3 v ss v i il low voltage input current (pin 2, 8, 12, 19) v i = 1.5 v -10 m a i ih high voltage input current (pin 2, 8, 12, 19) 2.3 v v i v ss 0.6 v 30 100 m a v en l enable low voltage (pin 1, 11) -0.3 1.5 v v en h enable high voltage (pin 1, 11) 2.3 v ss v i en l low voltage enable current (pin 1, 11) v en l = 1.5 v -30 -100 m a i en h high voltage enable current (pin 1, 11) 2.3 v v en h v ss 0.6 10 m a v ce(sat)h source output saturation voltage (pins 3, 7, 13, 18) i o = 0.6 a 1.4 1.8 v v ce(sat)l sink output saturation voltage (pins 3, 7, 13, 18) i o = + 0.6 a 1.2 1.8 v t r rise time (*) 0.1 to 0.9 v o 250 ns t f fall time (*) 0.9 to 0.1 v o 250 ns t on turn-on delay (*) 0.5 v i to 0.5 v o 750 ns t off turn-off delay (*) 0.5 v i to 0.5 v o 200 ns (*) see switching times diagram l293c 3/5
20 11 110 i a1 l b e d z b z e3 f b1 e pmdip20w.eps powerdip (16 + 2 +2) package mechanical data dimensions millimeters inches min. typ. max. min. typ. max. a1 0.51 0.020 b 0.85 1.4 0.033 0.055 b 0.5 0.020 b1 0.38 0.5 0.015 0.020 d 24.8 0.976 e 8.8 0.346 e 2.54 0.100 e3 22.86 0.900 f 7.1 0.280 i 5.1 0.201 l 3.3 0.130 z 1.27 0.050 dip20pw.tbl l293c 4/5
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. specifica- tions mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information pre- viously 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 sgs-thomson microelectronics group of companies australia - brazil - france - germany - hong kong - italy - japan - korea - malaysia - malta - morocco - the nether- lands - singapore - spain - sweden - switzerland - taiwan - thaliand - united kingdom - u.s.a. l293c 5/5
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