TEXAS INSTRUMENTS L293NEE4 芯片, 四继电器驱动器
The is a quadruple high-current Half-H Driver designed to provide bidirectional drive currents of up to 1A at voltage from 4.5 to 36V. The device is 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.