STMicroelectronics EV-VND9008AJ

Overview

The EV-VND9008AJ from STMicroelectronics is a pre-assembled evaluation board for the VND9008AJ double-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, with integrated current-sense analog feedback, thermal shutdown, and fault reset functionality - used for rapid prototyping of protected ADAS sensor supplies and headlamp control.

For engineers reviewing the EV-VND9008AJ datasheet, EV-VND9008AJ pinout, EV-VND9008AJ application, or EV-VND9008AJ equivalent, this board enables immediate connection of microcontroller I/O, 12 V supply, and resistive/inductive loads without external component design - supporting diagnostic validation, cold-cranking compliance testing (LV124 Rev. 2013), and latch-off behavior verification under overload or overtemperature conditions.

Technical Context

The EV-VND9008AJ implements ST's VIPower M0-9 technology and interfaces directly with the VND9008AJ IC, which integrates two independent high-side switches with multiplexed analog current-sense output (CS), dedicated FaultRST and SEn pins, and SEL input for channel selection. It supports deep cold-cranking down to 4 V supply while maintaining diagnostics.

Board-level features include on-board Rsense configuration, 10 nF Cext for CS filtering, pull-up networks for IN0/IN1, LED indicators for output status, and EZ/ASD connectors for standardized load/microcontroller interfacing - all aligned with ST's recommended layout and decoupling per DB4942.

Key Specifications

Availability

EV-VND9008AJ is available at Aetrix Electronics and suitable for automotive ADAS sensor power distribution, headlamp control modules, and protected 12 V load switching applications requiring stable component supply, rapid evaluation turnaround, and traceable qualification-grade hardware.

Supply support for EV-VND9008AJ 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, delivering silicon solutions for automotive, industrial, and consumer markets with emphasis on safety, reliability, and automotive-grade qualification.

The VND9008AJ product line belongs to ST's VIPower family of smart power ICs, engineered specifically for robust, diagnostic-rich high-side driving of automotive grounded loads under harsh electrical conditions including load dump, reverse battery, and deep undervoltage.

FAQ

What is the purpose of the SEL pin on the EV-VND9008AJ board?

The SEL pin selects between the two high-side channels (OUTPUT0 and OUTPUT1) for multiplexed analog current sensing on the CS pin. When SEL = low, OUTPUT0 current is reported; when SEL = high, OUTPUT1 current is reported - enabling single-ADC monitoring of both channels without additional hardware.

Does the EV-VND9008AJ support reverse battery protection?

Yes - the underlying VND9008AJ IC provides reverse battery protection through self-turn-on blocking behavior in the VIPower M0-9 structure. The evaluation board preserves this function with appropriate layout and grounding, and no external diode is required to protect against −14 V reverse polarity events.

Can the CS pin be used continuously during normal operation?

Yes - the CS pin delivers a proportional analog current (typically 1:2000) representing the active channel's load current, with built-in filtering (10 nF Cext). It remains functional during overload, short-to-ground, and thermal shutdown, providing continuous diagnostic visibility without interrupting system operation.

Is external sense resistor required for current measurement?

No - the VND9008AJ integrates a precision current mirror; the CS pin outputs a scaled replica current that can be converted to voltage using an external shunt (e.g., 10 kΩ) and read by a microcontroller ADC. The board includes test points (TP1–TP13) and routing for direct connection without adding discrete sense resistors in series with the load path.