L293C
April1993
H-BRIDGEDRIVER
PRELIMINARY DATA
PUSH-PULL FOUR CHANNEL/DUAL
.600mAOUTPUTCURRENT CAPABILITYPER
CHANNEL
.1.2APEAKOUTPUTCURRENT(nonrepetitive)
PERCHANNEL
.ENABLEFACILITY
.OVERTEMPERATURE PROTECTION
.LOGICAL ”0” INPUT VOLTAGE UP TO 1.5 V
(high noiseimmunity)
.SEPARATEHIGHVOLTAGEPOWER SUPPLY
(upto 44V)
DESCRIPTION
TheL293Cisa monolithichighvoltage,highcurrent
integratedcircuit fourchanneldriverina 20pinDIP.
It is designedto accept standardTTL or DTL input
logic levels and drive inductive loads (such as re-
lays, solenoids, DC and stepping motors) and
switching powertransistors.
The devicemay easily be used as a dual H-bridge
driver:separatechipenableandhighvoltagepower
supplypinsare providedforeachH-bridge. In addi-
tion, a separate power supply is provided for the
logic section of the device.
The L293C is assembledin a 20lead plasticpack-
agewhichhas4centerpinsconnectedtogetherand
usedfor 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
VSSupply Voltage 50 V
VSS Logic Supply Voltage 7 V
ViInput Voltage 7 V
VEN Enable Voltage 7 V
Iout Peak Output Current (non–repetitive t = 5 ms) 1.2 A
Ptot Total Power Dissipation at Tground–pins =80
o
C5W
T
stg,T
jStorage and Junction Temperature –40 to 150 oC
THERMAL DATA
Symbol Parameter Value Unit
Rth j-case Thermal Resistance Junction-case Max. 14 oC/
Rth j-amb Thermal Resistance Junction-ambient Max. 80 oC/
ELECTRICAL CHARACTERISTICS
(for each channel, VS=24 V, VSS =5V,T
amb =25oC, unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VSSupply Voltage (pin 9, 10) VSS 44 V
VSS Logic Supply Voltage (pin 20) 4.5 7 V
ISTotal Quiescent Supply Current (pin 9, 10) Vi=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
ISS Total Quiescent Logic Supply Current (pin 20) Vi=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
VIL Input Low Voltage (pin 2, 8, 12, 19) -0.3 1.5 V
VIH Input High Voltage (pin 2, 8, 12, 19) 2.3 VSS V
IIL Low Voltage Input Current (pin 2, 8, 12, 19) Vi= 1.5 V -10 µA
IIH High Voltage Input Current (pin 2, 8, 12, 19) 2.3 V ViVSS 0.6 V 30 100 µA
VEN L Enable Low Voltage (pin 1, 11) -0.3 1.5 V
VEN H Enable High Voltage (pin 1, 11) 2.3 VSS V
IEN L Low Voltage Enable Current (pin 1, 11) VEN L = 1.5 V -30 -100 µA
IEN H High Voltage Enable Current (pin 1, 11) 2.3 V VEN H VSS 0.6 ±10 µA
VCE(sat)H Source Output Saturation Voltage
(pins 3, 7, 13, 18) IO= 0.6 A 1.4 1.8 V
VCE(sat)L Sink Output Saturation Voltage
(pins 3, 7, 13, 18) IO= + 0.6 A 1.2 1.8 V
trRise Time (*) 0.1 to 0.9 VO250 ns
tfFall Time (*) 0.9 to 0.1 VO250 ns
ton Turn-on Delay (*) 0.5 Vito 0.5 VO750 ns
toff Turn-off Delay (*) 0.5 Vito 0.5 VO200 ns
(*) See switching times diagram
L293C
3/5
20 11
110
I
a1
L
Be
D
Z
b
Ze3
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
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L293C
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