L293B_03 STMICROELECTRONICS [STMicroelectronics], L293B_03 Datasheet

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L293B_03

Manufacturer Part Number
L293B_03
Description
PUSH-PULL FOUR CHANNEL DRIVERS
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
DESCRIPTION
The Device is a monolithic integrated high volt-
age, high current four channel driver designed to
accept standard DTL or TTL logic levels and drive
inductive loads (such as relays solenoides, DC
and stepping motors) and switching power tran-
sistors.
To simplify use as two bridges each pair of chan-
nels is equipped with an enable input. A separate
supply input is provided for the logic, allowing op-
eration at a lower voltage and internal clamp di-
odes are included.
This device is suitable for use in switching appli-
cations at frequencies up to 5 kHz.
BLOCK DIAGRAM
July 2003
600mA OUTPUT CURRENT CAPABILITY
PER CHANNEL
1.2A PEAK OUTPUT CURRENT (non repeti-
tive) PER CHANNEL
ENABLE FACILITY
OVERTEMPERATURE PROTECTION
LOGICAL "0" INPUT VOLTAGE UP TO 1.5 V
(HIGH NOISE IMMUNITY)
INTERNAL CLAMP DIODES
®
PUSH-PULL FOUR CHANNEL DRIVER WITH DIODES
The L293D is assembled in a 16 lead plastic
packaage which has 4 center pins connected to-
gether and used for heatsinking
The L293DD is assembled in a 20 lead surface
mount which has 8 center pins connected to-
gether and used for heatsinking.
SO(12+4+4)
L293DD
ORDERING NUMBERS:
Powerdip (12+2+2)
L293DD
L293D
L293D
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L293B_03 Summary of contents

Page 1

PUSH-PULL FOUR CHANNEL DRIVER WITH DIODES 600mA OUTPUT CURRENT CAPABILITY PER CHANNEL 1.2A PEAK OUTPUT CURRENT (non repeti- tive) PER CHANNEL ENABLE FACILITY OVERTEMPERATURE PROTECTION LOGICAL "0" INPUT VOLTAGE UP TO 1.5 V (HIGH NOISE IMMUNITY) INTERNAL CLAMP DIODES ...

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L293D - L293DD ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage S V Logic Supply Voltage SS V Input Voltage i V Enable Voltage en I Peak Output Current (100 s non repetitive Total Power Dissipation at T tot ...

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ELECTRICAL CHARACTERISTICS (for each channel, V otherwise specified) Symbol Parameter V Supply Voltage (pin 10 Logic Supply Voltage (pin 20 Total Quiescent Supply Current S (pin 10) I Total Quiescent Logic Supply SS Current (pin 20) ...

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L293D - L293DD TRUTH TABLE (one channel) Input Enable (*) High output impedance (*) Relative to the considered channel Figure 2: Junction to ambient thermal resistance vs. area on board ...

Page 5

DIM. MIN. TYP. MAX. MIN. a1 0.51 0.020 B 0.85 1.40 0.033 b 0.50 b1 0.38 0.50 0.015 D 20.0 E 8.80 e 2.54 e3 17.78 F 7.10 I 5.10 L 3.30 Z 1.27 inch MECHANICAL DATA TYP. MAX. ...

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L293D - L293DD mm DIM. MIN. TYP. MAX. A 2.35 2.65 0.093 A1 0.1 0.3 0.004 B 0.33 0.51 0.013 C 0.23 0.32 0.009 D 12.6 13 0.496 E 7.4 7.6 0.291 e 1. 10.65 0.394 h 0.25 ...

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Information furnished is believed to be accurate and reliable. However, STMicroelectronics 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. ...

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