Description
The L9911 is a monolithic multifunction alternator voltage regulator intended for use in automotive application. It includes the control section, the field power stage, fault diagnostic circuit which drives a warning lamp, and the protection against short circuits.

FEATUREs
■ FULLY MONOLITHIC DESIGN
■ HIGH SIDE FIELD DRIVER
■ THERMAL PROTECTION
■ FIELD SHORT CIRCUIT PROTECTION
■ PROTECTED DIAGNOSTIC LAMP DRIVER
■ PROTECTED HIGH SIDE RELAY DRIVER
■ COMPLEX DIAGNOSTICS
■ LOAD RESPONSE CONTROL
■ DFM OUTPUT (FIELD MONITOR)