L293中文资料四路半高驱动器数据手册TI规格书

描述 Description

The L293 and L293D devices are quadruple high-current half-H drivers. The L293 is designed to provide bidirectional drive currents of up to 1 A at voltages from 4.5 V to 36 V. The L293D is designed to provide bidirectional drive currents of up to 600-mA at voltages from 4.5 V to 36 V. Both devices are designed to drive inductive loads such as relays, solenoids, DC and bipolar stepping motors, as well as other high-current/high-voltage loads in positive-supply applications.
Each output is a complete totem-pole drive circuit, with a Darlington transistor sink and a pseudo- Darlington source. Drivers are enabled in pairs, with drivers 1 and 2 enabled by 1,2EN and drivers 3 and 4 enabled by 3,4EN.
The L293 and L293D are characterized for operation from 0°C to 70°C.

特性 Features

·Wide Supply-Voltage Range: 4.5 V to 36 V
·Separate Input-Logic Supply
·Internal ESD Protection
·High-Noise-Immunity Inputs
·Output Current 1 A Per Channel (600 mA for L293D)
·Peak Output Current 2 A Per Channel (1.2 A for L293D)
·Output Clamp Diodes for Inductive Transient Suppression (L293D)