ARG82800: Fully Integrated PMIC for Safety-Related Systems with Buck or Buck-Boost Pre-Regulator, 4× Linear Regulators, 4× Gate Drivers, and SPI

Description

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.

Target Applications:


Automotive Control Modules for:
  • Electronic Power Steering (EPS)
  • Transmission Control Units (TCU)
  • Advanced Braking Systems (ABS)
  • Emissions Control Modules
  • Other automotive applications

 

ASIL-D PMIC for automotive control units

Top Features

  • 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

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check Stock
APEK82800KLV-01-MH DEMO BOARD -20°C to 85°C No -- Contact your
local sales rep
Check
Distributor Stock
ARG82800KLVATR 38-lead TSSOP -40°C to 125°C Yes View Data Contact your
local sales rep
Check
Distributor Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

Packaging

ARG82800 Packages