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Motore di ricerca datesheet componenti elettronici |
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L9965P-FN Scheda tecnica(PDF) 1 Page - STMicroelectronics |
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L9965P-FN Scheda tecnica(HTML) 1 Page - STMicroelectronics |
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1 / 104 page  Features • AEC-Q100 grade 1 qualified • Full ISO26262 compliant, ASIL-D systems ready • 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 companion CSA, implementing many of the safety mechanisms needed to achieve ASIL targets, thus allowing easy L9965P plug and play in the system • Pyro-fuse deployment available down to a minimum operating battery voltage of 6 V • 24-bit peripheral SPI for direct MCU/L9965C interface • Compatible with pyro-fuses certified according LV-16 and USCAR-28 Application • High voltage battery packs for BEVs and PHEVs • Backup energy storage systems and UPS Description L9965P is an automotive-grade single channel pyro-fuse driver capable to break high voltage battery line quickly and reliably in case of short circuit or car crash. To accomplish this function, the device features a dual FET output stage made of a HS and a LS powerMOS. 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. Moreover, the power stage is able to perform a defined number of auto-retry attempts based on the success or not of the deployment. The device embeds a programmable firing logic allowing to generate the trigger signal from two SPI commands or from two digital inputs (FENH/FENL). VFQFN32+4L 5x5x0.9 mm TQFP32L 7x7x1 mm Product status link L9965P Product summary Order code Package Packing L9965P ‑FN VFQFN32 Tray L9965P ‑FN‑TR Tape and reel L9965P ‑FP TQFP32L Tray L9965P ‑FP‑TR Tape and reel Product labels Automotive single channel pyro-fuse driver L9965P Datasheet DS14702 - Rev 4 - June 2025 For further information, contact your local STMicroelectronics sales office. www.st.com |
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