STMicroelectronics EVAL-L5965

Overview

EVAL-L5965 from STMicroelectronics is an evaluation board designed to demonstrate and validate the L5965, a power management IC for automotive ADAS systems. It provides seven regulated voltage rails-including pre-programmed [email protected] (battery-supplied pre-regulator), BUCK3@2V, [email protected], [email protected], BOOST@5V, and two SPI-controllable rails (BUCK1@5V and [email protected]).

For engineers reviewing the EVAL-L5965 datasheet, EVAL-L5965 pinout, EVAL-L5965 application, or EVAL-L5965 equivalent, key considerations include SPI-based rail activation sequencing, battery-compatible input handling, pre-regulator integration for automotive 12V supply conditioning, and diagnostic access via dedicated SPI connector.

Technical Context

The EVAL-L5965 implements a fixed-function hardware configuration mirroring the L5965 PMIC's internal topology: BUCK2 operates as a primary buck converter accepting 5.5–40V automotive battery input and delivering 3.3V to downstream regulators; BUCK1 and the LDO are disabled by default and require SPI command issuance to enable.

Board-level diagnostics are supported through a standard SPI interface connector, enabling real-time register readback, fault flag monitoring, and rail status interrogation-critical for validating power sequencing and fault response in ADAS domain controllers and camera ECU designs.

Key Specifications

Availability

EVAL-L5965 is available at Aetrix Electronics and suitable for ADAS camera modules, radar sensor units, and domain controller power validation requiring stable component supply during early design and compliance testing phases.

Supply support for EVAL-L5965 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, Switzerland, specializing in automotive, industrial, and power management solutions with broad IP and manufacturing scale.

The L5965 product line targets high-reliability automotive ADAS power systems, integrating multiple DC-DC converters and LDOs into a single package to reduce board space and improve sequencing control in vision- and sensor-fused ECUs.

FAQ

Is EVAL-L5965 RoHS-compliant and qualified for automotive use?

Yes. The EVAL-L5965 board uses components qualified per AEC-Q200 where applicable and complies with RoHS Directive 2011/65/EU. Its target device L5965 is AEC-Q100 Grade 2 qualified, and the evaluation board is built to reflect that qualification context for lab validation.

Can EVAL-L5965 be used for functional safety (ISO 26262) development?

No. While the L5965 IC includes safety features like overvoltage/overcurrent protection and fault reporting, the EVAL-L5965 board itself lacks FMEDA documentation, safety manual, or ASIL decomposition evidence. It supports preliminary safety architecture exploration but cannot serve as a certified safety development tool.

Does EVAL-L5965 support external clock synchronization or spread-spectrum modulation?

No. The L5965 IC does not implement clock synchronization inputs or spread-spectrum control. Consequently, the EVAL-L5965 board has no provision for external clock injection or frequency dithering-its switching frequencies are fixed per internal oscillator and cannot be modulated externally.

What firmware or software tools are required to communicate with EVAL-L5965 via SPI?

ST provides the STSW-L5965GUI graphical user interface (Windows-based) and associated USB-to-SPI adapter firmware. No custom driver installation is needed; communication uses CDC ACM virtual COM port over USB. The GUI enables full register read/write, rail enable/disable, and fault log dump without code development.