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)