L293E STMicroelectronics

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 POWERDIP(16+2+2) DESCRIPTION ORDERING NUMBERS: The L293B and L293E are quad push-pull drivers L293B L293E 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 sensing resistors, for switchmode control. full bridge) is equipped with an inhibit input which turns off all four transistors. A separate supply in- The L293B and L293E are package in 16 and 20- put is provided for the logic so that it may be run pin plastic DIPs respectively both use the four off a lower voltage to reduce dissipation. center pins to conduct heat to the printed circuit board. Additionally, the L293E has external connection of PIN CONNECTION (Top view) POWERDIP (16+2+2) - L293E DIP16 - L293B July 2003 1/12L293E L293B BLOCK DIAGRAMS DIP16 - L293B POWERDIP (16+2+2) - L293E 2/12