STMicroelectronics L9473 Car Alternator Voltage Regulator Datasheet

About this manual

The L9473 is a monolithic multifunction generator voltage regulator intended for use in automotive charging applications. It regulates the output of an automotive generator by controlling the field winding current by means of a variable frequency PWM high side driver. The device is designed for both air and liquid cooled applications and includes features such as thermal protection and short circuit protection for the field driver, lamp driver, and relay driver.

What's inside

• Block diagram and pin description
• Electrical specifications
• Absolute maximum ratings
• Thermal data
• Electrical characteristics
• Package information
• Revision history
• Fault indication

Specifications

Frequently asked questions

What applications is the L9473 intended for?

The L9473 is intended for use in automotive charging applications.

Is the L9473 compatible with air and liquid cooled applications?

Yes, it is designed for both air and liquid cooled applications.