ARG82801 Datasheet | Allegro MicroSystems

ATURES 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) - - Other automotive applications PACKAGE: 38-Pin e TSSOP (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 plete with control, diagnostics, and protections. The output of the pre-regulator supplies a 3.3 V or 5.0 V selectable 350 m A linear regulator, a 5 V / 115 m A linear regulator, and two 120 m A protected linear regulators which track VUC output. Designed to supply power for microprocessors, sensors, and CAN transceivers, the ARG82801 is ideal for underhood...