STMicroelectronics L9474N
The L9474N is a monolithic multifunction generator voltage regulator intended for use in automotive applications. This device regulates the output of an automotive generator by controlling the field winding current by means of a variable frequency PWM high side driver. The setpoint voltage reference is selected by the ENGINE CONTROL UNIT via RVC protocol.FEATURES
High side field driver Thermal protection Field driver short circuit protection RVC interface Overvoltage protection Complex diagnostics Load Response ControlDESCRIPTION
Table 1: Device summary Order code Package Packing L9474N Multiwatt 8 Tube May 2015 This is information on a product in full production. DocID027831 Rev 1 1/13 Contents Contents L9474N 1 Schematic diagram and pin description ........................................ 5 1.1 Schematic diagram ........................................................................... 5 1.2 Pin description................................................................................... 5 2 Electrical specification.................................................................... 6 2.1 Absolute maximum ratings ................................................................ 6 2.2 Thermal data ..................................................................................... 6 2.3 Electrical characteristic .....................................................................