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ARG82801

Allegro
Part Number ARG82801
Manufacturer Allegro
Description Fully Integrated PMIC
Published May 13, 2019
Detailed Description ARG82801 Fully Integrated PMIC for Safety-Related Systems with Buck or Buck-Boost Pre-Regulator, 4× Linear Regulators, ...
Datasheet PDF File ARG82801 PDF File

ARG82801
ARG82801

Overview
ARG82801 Fully Integrated PMIC for Safety-Related Systems with Buck or Buck-Boost Pre-Regulator, 4× Linear Regulators, 4× Gate Drivers, and SPI FEATURES AND BENEFITS • 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 APPLICATIONS • Provides system power for (microcontroller/DSP, CAN, sensors, etc.
) and high current isolation FET gate driver in automotive control modules, such as: □ Electronic power steering (EPS) □ Advanced braking systems (ABS) 2 - □ Other automotive applications PACKAGE: 38-Pin eTSSOP (suffix LV) Not to scale DESCRIPTION The ARG82801 is a power management IC that integrates a buck or buck/boost pre-regulator, four LDOs, and four floating gate drivers.
The pre-regulator uses a buck or buck/boost topology to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage complete with control, diagnostics, and protections.
The output of the pre-regulator supplies a 3.
3 V or 5.
0 V selectable 350 mA linear regulator, a 5 V / 115 mA linear regulator, and two 120 mA protected linear regulator...


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