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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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L9945 데이터시트(PDF) 1 Page - STMicroelectronics |
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L9945 데이터시트(HTML) 1 Page - STMicroelectronics |
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1 / 151 page  TQFP64 exposed pad down GADG1606171506PS Features • AEC-Q100 qualified • 12 V and 24 V battery systems compliance • 3.3 V and 5 V logic compatible I/O • 8-channel configurable MOSFET pre-driver – High-side (N-channel and P-channel MOS) – Low-side (N-channel MOS) – H-bridge (up to 2 H-bridge) – Peak & Hold (2 loads) • Operating battery supply voltage 3.8 V to 36 V • Operating VDD supply voltage 4.5 V to 5.5 V • All device pins, except the ground pins, withstand at least 40 V • Programmable gate charge/discharge currents for improving EMI behavior • Individual diagnosis for: – Short circuit to battery – Open load – Short circuit to ground • Highly flexible overcurrent sensing implementation – Possibility of monitoring external MOS drain to source voltage – Possibility of monitoring voltage on external shunt resistor – 64 programmable overcurrent thresholds independent for each channel – Ultra-fast output shutdown in case of overcurrent • Current limitation for H-Bridge configuration • 32-bit SPI protocol available for configuration and diagnostics – Failures latched even if they occur during diagnostics reading – Daisy chain operation – SDO protected against overvoltage • Safety features – Fast switch off redundant output disable through two external pins – Built In Self Test (BIST) for logic operation – Hardware Self Check (HWSC) for VDD5 overvoltage comparator – Configurable Communication Check (CC) watchdog timer available – Disable feedback through bi-directional pin – Highly redundant output monitoring through dedicated SPI registers • 10-bit ADC for battery and die temperature measurements available through SPI • VDD5 monitoring for over/under voltage • VPS (battery) monitoring for under voltage • ISO26262 systems compatible Product status link L9945 Product summary Order code Package Packing L9945 TQFP64 (exposed pad down) Tray L9945TR Tape and reel Automotive fully configurable 8-channel High/Low side MOSFET pre-driver suitable for 12 V and 24 V systems L9945 Datasheet DS12275 - Rev 8 - December 2019 For further information contact your local STMicroelectronics sales office. www.st.com |
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