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