FEATURES

•   Fully monolithic design

•   High side field driver

•   LRC function and soft start

•   ECU control via L terminal

•   Field driver short circuit protection

•   Under and overvoltage protection

•   Self-start with open L terminal circuit

•   Thermal shut down function     

  The HT8001 is a monolithic alternator voltage regulator IC intended for use in automotive application. It includes the control section, the field power stage and the protection against short circuits. IC regulates the output voltage of an automotive generator in close loop by control the field winding current with a Pulse-Width Modulation (PWM) high side driver at fixed frequency. The set-point voltage reference selected by the Engine Control Unit (ECU) via L-terminal protocol is temperature flat. The alternator voltage regulator IC has the standby mode with small current consumption.