STMicroelectronics EV-VND9025AJ

Overview

The EV-VND9025AJ from STMicroelectronics is an evaluation board pre-assembled with the VND9025AJ dual-channel smart high-side driver in PowerSSO-16 package, designed for 12 V automotive grounded loads, featuring 25 mΩ on-state resistance per channel, 35 A current limitation, and 0.5 µA max standby current.

For engineers reviewing the EV-VND9025AJ datasheet, EV-VND9025AJ pinout, EV-VND9025AJ application, or EV-VND9025AJ equivalent, this board enables rapid validation of load driving, analog current sense feedback, fault diagnostics (short-to-ground/VCC, open-load, thermal shutdown), and latch-off reset via FaultRST pin in automotive power distribution systems.

Technical Context

The EV-VND9025AJ implements a hardware-based evaluation platform for the VND9025AJ VIPower M0-9 IC, supporting 4–28 V operating voltage and up to 36 V transient supply. It integrates dedicated test points, pull-up resistors, sense resistor footprints (R11, R15), and configurable jumpers (R6, R4, R8) for IN0/IN1, SEn, FaultRST, and SEL signals.

Board-level diagnostics include multiplexed analog current sense (CS pin), LED indicators for OUTPUT0/OUTPUT1 status and fault conditions, and connectors CN5–CN10 for VBAT, GND, IN0/IN1, FaultRST, SEn, SEL, and MultiSense interface - enabling full functional verification without external component design.

Key Specifications

Availability

EV-VND9025AJ is available at Aetrix Electronics and suitable for automotive ADAS power distribution, turn indicator control, protected sensor supply, and ECU output stage validation requiring stable component supply and rapid prototyping capability.

Supply support for EV-VND9025AJ 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 VND9025AJ product line targets automotive high-side power switching applications, delivering integrated protection, diagnostics, and low-voltage operability for next-generation body control modules and ADAS subsystems.

FAQ

What is the primary function of the EV-VND9025AJ evaluation board?

The EV-VND9025AJ is a ready-to-use hardware platform for evaluating the VND9025AJ dual-channel smart high-side driver. It provides all recommended external components (pull-ups, sense resistors, decoupling capacitors), test points, LEDs, and standardized connectors to directly interface with microcontrollers, power supplies, and automotive loads-eliminating custom PCB design for functional validation.

Does the board support both channels of the VND9025AJ independently?

Yes. The board routes INPUT0/INPUT1, OUTPUT0/OUTPUT1, and associated diagnostic pins (CS, FaultRST, SEn, SEL) separately with dedicated LEDs and test points. Each channel can be controlled and monitored independently, including individual current sense feedback and fault reporting through the multiplexed CS pin using timing-based selection.

How is analog current sensing implemented on this board?

Analog current sensing uses the VND9025AJ's internal proportional current mirror fed to the CS pin. The board includes footprint R11 for an external sense resistor and Cext (10 nF) for filtering. The CS signal is accessible at TP12 and CN8 pin 4 (MultiSense), supporting oscilloscope or ADC measurement of load current, overload, short-to-ground, and open-load conditions.

Can the EV-VND9025AJ be used for reverse battery or overvoltage stress testing?

No. While the underlying VND9025AJ IC includes reverse battery protection (via self-turn-on) and overvoltage clamping, the EV-VND9025AJ board lacks reinforced input filtering, TVS diodes, or transient suppression components. It is intended for functional evaluation under nominal 12 V automotive conditions-not accelerated stress or compliance testing per ISO 7637-2 or LV124.