STMicroelectronics L9965P
L9965P/ is a single channel pyro-fuse driver capable to break high voltage battery busbar quickly and reliably in case of short circuit or car crash. The stage is equipped with a closed loop current feedback and can be configured to deliver controlled firing profiles programming both current value and time duration. The device embeds a programmable firing logic allowing to generate the trigger signal from two SPI commands or from two digital inputs (FENH/FENL).| Part No. | L9965P |
|---|---|
| Datasheet | L9965P Download |
| Manufacturer |  STMicroelectronics |
| Description | Automotive single channel pyro-fuse driver |
| Buy | Stock & Price |
FEATURES
VFQFN32+4L 5x5x0.9 mm TQFP32L 7x7x1 mm● AEC-Q100 grade 1 qualified
● Very low power consumption: – Less than 10 μA in deep-sleep mode (only trigger detection enabled) – Less than 4 mA in low-power mode (trigger detection enabled, ER boost recharge active, cyclic diagnostics every 100 ms)
● Boost regulator to charge Energy Reserve (ER) with bang-bang control to reduce consumption
● FENH/FENL digital input triggers, compatible to level or PWM signals (16 kHz and 125 kHz), with line integrity check feature
● Autonomous cyclic diagnostic routine to ensure detection of all failures which may prevent safe deployment and/or cause inadvertent deployment
● Programmable deployment profile: current value and time duration can be adapted to different pyro-fuse igniters
● Firing strategy supporting multiple retry attempts based on user-selectable FIRE_GOOD signal
● Embedded NVM for configuration parameters storage and runtime configuration integrity check
● Easy integration with L9965C co...
