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.
- 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)
- Self start function