STMicroelectronics EV-VND9012AJ

Overview

EV-VND9012AJ from STMicroelectronics is a pre-assembled evaluation board for the VND9012AJ dual-channel smart high-side driver in PowerSSO-16 package, designed to drive 12 V automotive grounded loads via 3 V/5 V CMOS-compatible inputs, featuring analog current sense feedback, thermal shutdown with configurable latch-off, and fault reset (FaultRST) pin. It supports deep cold-cranking (LV124 Rev 2013), operates from 4–28 V supply, and delivers 12 mΩ on-state resistance per channel.

For engineers reviewing the EV-VND9012AJ datasheet, EV-VND9012AJ pinout, EV-VND9012AJ application, or EV-VND9012AJ equivalent, this board enables rapid validation of VND9012AJ diagnostics-including multiplexed analog current sense (CS), short-to-VCC detection, OFF-state open-load diagnosis, and configurable fault latching-within ADAS power supply and automotive load control systems.

Technical Context

The EV-VND9012AJ implements a hardware-based evaluation platform for the VND9012AJ VIPower M0-9 IC, integrating minimal external components per datasheet recommendations to enable direct connection of microcontroller I/O, 12 V supply (VBAT), and resistive/inductive/capacitive loads. It exposes all critical control and diagnostic signals-including INPUT0/INPUT1, SEn, FaultRST, SEL, and CS-via standardized EZ and ASD connectors.

Board-level design supports simultaneous dual-channel operation with independent input control, analog current sensing through a dedicated CS pin (multiplexed proportional mirror), and fault status reporting via LED indicators. The board includes test points (TP1–TP13), pull-up resistors (R1–R4), sense resistor footprint (R11), and optional ADC routing for VBAT_ADC, enabling real-time voltage and current monitoring without additional circuitry.

Key Specifications

Availability

EV-VND9012AJ is available at Aetrix Electronics and suitable for automotive ADAS power supply validation, engine control module (ECM) load interface testing, and body electronics diagnostic development requiring stable component supply and traceable evaluation hardware.

Supply support for EV-VND9012AJ 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 vertical manufacturing and broad IP portfolio.

The VND9012AJ and its EV-VND9012AJ evaluation board belong to ST's VIPower™ smart power IC product line, engineered specifically for robust, diagnostic-rich high-side driving of 12 V automotive loads under harsh electrical conditions.

FAQ

What is the primary function of the EV-VND9012AJ evaluation board?

The EV-VND9012AJ is a ready-to-use hardware platform for evaluating the VND9012AJ dual-channel smart high-side driver. It provides all necessary passive components, signal routing, test points, and LED indicators to validate load switching, analog current sensing, fault diagnostics (e.g., short-to-VCC, open-load), and latch-off/reset behavior without custom PCB design.

Does the board support both channels independently, and how are inputs controlled?

Yes - the board supports fully independent control of both high-side channels via separate INPUT0 and INPUT1 pins routed to CN9. Each channel can be enabled/disabled individually, and diagnostic feedback (CS, FaultRST, LED status) remains active per channel, enabling asymmetric load testing and failure-mode analysis in multi-actuator systems.

How is analog current sensing implemented on this board?

The board routes the VND9012AJ's multiplexed CS pin to CN8 Pin 4 (MultiSense) and includes TP4 for oscilloscope probing. A precision external sense resistor (R11 footprint) and 10 nF capacitor (Cext) are provided per datasheet guidance to condition the analog output, enabling accurate MCU ADC measurement of load current across both channels in time-multiplexed fashion.

Can the EV-VND9012AJ be used for LV124-compliant cold-cranking validation?

Yes - the board supports operation down to 4 V supply (per VND9012AJ spec), meeting LV124 Rev 2013 requirements for deep cold-cranking. Its low standby current (≤0.5 µA), undervoltage lockout, and fast thermal transient response allow realistic simulation of battery sag events while maintaining diagnostic integrity and fault reporting capability.