L293B
L293E
PUSH-PULL FOUR CHANNEL DRIVERS
s
s
s
s
s
s
OUTPUT CURRENT 1A PER CHANNEL
PEAK OUTPUT CURRENT 2A PER CHANNEL
(non repetitive)
INHIBIT FACILITY
HIGH NOISE IMMUNITY
SEPARATE LOGIC SUPPLY
OVERTEMPERATURE PROTECTION
DIP16
POWERDIP(16+2+2)
DESCRIPTION
The L293B and L293E are quad push-pull drivers
capable of delivering output currents to 1A per
channel. Each channel is controlled by a TTL-
compatible logic input and each pair of drivers (a
full bridge) is equipped with an inhibit input which
turns off all four transistors. A separate supply in-
put is provided for the logic so that it may be run
off a lower voltage to reduce dissipation.
Additionally, the L293E has external connection of
PIN CONNECTION
(Top view)
ORDERING NUMBERS:
L293B
L293E
sensing resistors, for switchmode control.
The L293B and L293E are package in 16 and 20-
pin plastic DIPs respectively ; both use the four
center pins to conduct heat to the printed circuit
board.
POWERDIP (16+2+2) - L293E
DIP16 - L293B
July 2003
1/12
STMICROELECTRONICS [ STMICROELECTRONICS ]
