L293B Datasheet, PDF (1/12 Pages) STMicroelectronics – PUSH-PULL FOUR CHANNEL DRIVERS

L293B
L293E
PUSH-PULL FOUR CHANNEL DRIVERS
. OUTPUT CURRENT 1A PER CHANNEL
. PEAK OUTPUT CURRENT 2A PER CHANNEL
(non repetitive)
. INHIBIT FACILITY
. HIGH NOISE IMMUNITY
. SEPARATE LOGIC SUPPLY
. OVERTEMPERATURE PROTECTION
DIP16
DESCRIPTION
The L293B and L293E are quad push-pull drivers
capableof delivering output currents to 1A per chan-
nel. Each channel is controlledby 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 input 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
sensing resistors, for switchmode control.
The L293Band 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.
ORDERING NUMBER : L293B
POWERDIP (16 + 2+ 2)
ORDERING NUMBER : L293E
PIN CONNECTIONS
DIP16 - L293B
POWERDIP (16+2+2) - L293E
April 1993
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