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Fully Integrated PMIC for Safety-Related Systems with Buck or Buck-Boost Pre-Regulator, 4× Linear Regulators, 4× Gate Drivers, and SPI

ARG82800

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Description

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Typical Applications

The ARG82800 is an ASIL D PMIC for automotive control units, providing 4 power rails for microcontroller/DSP, sensors, CAN, memory, and other loads in the system. It includes a unique buck-boost (or buck) pre-regulator which is valuable for low Vbatt idle-stop requirements while continuing to provide 5 V output.

A key feature is the integration of 4× high-side gate drivers, typically used for battery disconnect and 3× phase disconnect in EPS systems. This can eliminate external component(s)/IC package, saving BOM cost and reducing PCB footprint.

ASIL-D PMIC for automotive control units
  • A2-SIL™ product—device features for safety-critical systems
  • Automotive AEC-Q100 qualified
  • Wide input voltage range, 3.8 to 36 VIN operating range, 40 VIN maximum
  • 2.2 MHz buck or buck/boost pre-regulator (VREG: 5.35 V)
  • Four internal linear regulators with foldback short-circuit protection
    • VUC: selectable output (3.3 V / 5.0 V) regulator for microcontroller
    • V5C: 5 V general purpose LDO regulator
    • V5P1 and V5P2: two LDO regulators (track VUC voltage) with short-to-battery protection for remote sensors
  • Q&A Watchdog and Window Watchdog timer
  • Floating gate drivers with charge pump for external isolator NFET control
  • Control and diagnostic reporting through a serial peripheral interface (SPI)
  • Logic enable input (ENB) for microprocessor control
  • Ignition enable input (ENBAT)
  • Frequency dithering and controlled slew rate help reduce EMI/EMC
  • Undervoltage protection for all output rails
  • Thermal shutdown protection
  • –40°C to 150°C junction temperature range

38-Pin eTSSOP (suffix LV)

LV Package Documentation

Automotive Control Modules for:

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