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L9965T Datasheet(PDF) 1 Page - STMicroelectronics |
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L9965T Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 62 page  Features • AEC-Q100 qualified • Temperature grade 1: -40°C to +125°C operating temperature range • HBM ESD classification level 2 • CDM ESD classification level C4B • Full ISO26262 compliant, ASIL-D systems ready, documentation available • Automatic wake-up of BMS/BMU MCU and PMIC from SHUTDOWN/SLEEP in case of fault detected in the chain • Single or dual channel p/n in the same package for ring connection • Supports up to 59 devices in chain • Cable lengths verified up to 10 meters • 10 MHz 4-wire SPI interface • 4 Mbps 2-wire vertical interface (VIF) • Supports both transformer and capacitive isolation • Compressed burst data read for enhanced communication speed over the whole chain • Broadcast write command to configure and control all devices in the chain (or a subset) • Very low EMI susceptibility and emissions • Compatible with 3.3 V and 5 V logics • Supply voltage from 6 V to 24 V Application • Automotive battery monitoring systems • Energy storage systems • UPS Description In BMS systems, the L9965T and L9965TS bidirectional SPI transceivers allow communication between isolated devices in different voltage domains through a twisted-pair connection. The devices belong to the L9965 chipset family for the monitoring and control of high- voltage battery management systems. LQFP32L 7x7x1.4 mm Product status link L9965T, L9965TS Product summary Order code Package Packing L9965T-TR LQFP32L Tape and reel L9965TS-TR Automotive SPI to isolated SPI transceiver L9965T/L9965TS Datasheet DS14987 - Rev 1 - September 2025 For further information, contact your local STMicroelectronics sales office. www.st.com |
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