L9474N

L9474N All silicon voltage regulator Datasheet - production data Multiwatt 8 GAPG0505150828PS Features High side field driver Thermal protection Field driver short circuit protection RVC interface Overvoltage protection Complex diagnostics Load Response Control Description 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. 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 www.st.com 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 .....................................