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Features and benefits

Operating range

? 40 V DC maximum input voltage

? Low-power off mode with very low sleep current and multiple wake-up sources

? Low-power on mode with HVBUCK (V1) active, HVLDO (V3) selectable by OTP and multiple wake-up

sources

Power supplies

? V1: High-voltage synchronous buck converter with integrated FETs. Configurable output voltage (1.9 V to 5 V)

and switching frequency, output DC current capability up to 400 mA and PFM mode for Low-power on mode

operation

? V3: High-voltage LDO regulator for microcontroller I/O support with selectable output voltage between 3.3 V or

5 V and up to 150 mA current capability

System support

? One CAN FD supporting up to 5 Mbps communication following ISO 11898-2:2016 and SAE J2284 standards

? Four wake-up inputs (40 V capable): WAKEx pins, HVIO1 pin, CAN FD or SPI command

? Hardware ID detection capability

? One high-voltage I/O with wake-up capability (40 V capable): HVIO1

? Device control via 32 bits SPI interface, with CRC

? Integrated long duration timer (LDT) for system shutdown and wake-up control, programmable up to 194 days

? 12-channel analog multiplexer (AMUX) for system monitoring (temperature, battery voltage, internal voltages)

Functional safety

? Developed following ISO 26262:2018 standard to fit for ASIL B applications

? Internal monitoring circuitry with its own reference.

? Additional input for external voltage monitoring

? Window or timeout watchdog function to monitor the MCU software failure

? Analog built-in self-test (ABIST) on demand

? Safety outputs (RSTB, LIMP0)

? Safety input to monitor external IC state (ERRMON)

Configuration and enablement

? HVQFN32EP: QFN, 32 pins with exposed pad for optimized thermal management, wettable flanks, 5 mm x 5

mm x 0.85 mm, 0.5 mm pitch

? Permanent device customization via one time programmable (OTP) fuse memory

? OTP emulation mode for system development and evaluation

Applications

? UWB anchors

? NFC anchors

? BLE anchors

? Combo anchors (UWB + BLE)

? UWB radar

? All small applications requiring low power and CAN FD

? UWB master anchors