A squib driver circuit for deployment of an active safety restraint in a vehicle. The squib driver circuit may include a low side protection circuit. The low side protection circuit may include a comparator circuit to compare a voltage at a low side return terminal to a reference voltage and activate a timer in response to the voltage at the low side return terminal exceeding the reference voltage, the timer generating a disable signal to disable the low side driver after a predetermined period of time. The low side protection circuit may disable the low side driver after the short is detected and elapse of the predetermined period of time. The squib driver circuit may be formed on a single chip.
SQUIB CIRCUIT LOW SIDE BATTERY SHORT PROTECTION
SQUIB-SCHALTUNG MIT LOW-SIDE-BATTERIEKURZSCHLUSSSCHUTZ
PROTECTION DE COURT-CIRCUIT DE BATTERIE CÔTÉ BAS DE CIRCUIT D'AMORCE
2021-11-24
Patent
Electronic Resource
English