STMicroelectronics EVAL-STPM066

Overview

EVAL-STPM066 from STMicroelectronics is an evaluation board designed to demonstrate the STPM066 power management IC for ADAS systems, featuring four pre-programmed voltage rails (3.3 V BUCK pre-regulator, 3.3 V VREF, 5 V BOOST, and 1.8 V LDO), SPI diagnostics interface, and battery-compatible operation.

For engineers reviewing the EVAL-STPM066 datasheet, EVAL-STPM066 pinout, EVAL-STPM066 application, or EVAL-STPM066 equivalent, this board enables rapid validation of STPM066 power sequencing, rail stability under automotive battery input, SPI-based fault logging, and multi-rail supply behavior in safety-critical vision and radar subsystems.

Technical Context

The board implements the STPM066 PMIC in its default factory configuration, delivering regulated outputs directly from a 9–16 V automotive battery input. It supports real-time monitoring via SPI with register-accessible status flags for overvoltage, undervoltage, thermal warning, and output enable states.

All four rails are hardware-configured with fixed feedback networks and ceramic output capacitors; no external programming resistors or trim components are required. The SPI connector provides direct access to the STPM066's diagnostic register map without requiring additional level-shifting circuitry.

Key Specifications

Availability

EVAL-STPM066 is available at Aetrix Electronics and suitable for ADAS camera modules, automotive radar processing units, driver-monitoring systems, and surround-view ECUs requiring stable component supply and validated power architecture.

Supply support for EVAL-STPM066 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in automotive, industrial, and power management solutions with broad IP portfolio and AEC-Q100 qualified product lines.

The STPM066 product line targets functional-safety-compliant power delivery in ADAS domains, with integrated diagnostics, redundancy-aware sequencing, and ASIL-B ready architecture for vision and sensing subsystems.

FAQ

What power sources can be used with the EVAL-STPM066 board?

The board accepts 9–16 V DC input, directly compatible with standard automotive battery systems including cranking and load-dump conditions. It does not require external AC/DC adapters or lab power supplies with special settings - a fused 12 V bench supply or vehicle battery suffices for full functionality.

Does the EVAL-STPM066 support custom voltage configurations?

No - the board implements only the factory-default STPM066 configuration with fixed 3.3 V BUCK, 3.3 V VREF, 5 V BOOST, and 1.8 V LDO outputs. Voltage reconfiguration requires modifying feedback resistors or using the STPM066's OTP programming interface on a custom PCB, not supported on this evaluation board.

Is SPI communication on EVAL-STPM066 isolated or level-shifted?

The SPI connector provides direct, non-isolated access to the STPM066's native 3.3 V logic-level signals (SCLK, MOSI, MISO, CS). No level-shifting or isolation is included; users must ensure host MCU or debugger operates at 3.3 V logic or adds external level translation.

Can EVAL-STPM066 be used for ASIL-B compliance testing?

Yes - the board demonstrates STPM066's built-in diagnostic features (rail monitoring, thermal flag, fault register readback) aligned with ASIL-B requirements per ISO 26262 Part 5 Annex D. However, final system-level compliance requires integration into a certified safety framework and full FMEDA analysis by the end customer.