STMicroelectronics EV-VND7E050AJ

Overview

EV-VND7E050AJ from STMicroelectronics is an evaluation board pre-assembled with the VND7E050AJ double-channel smart high-side driver in PowerSSO-16 package, designed for automotive 12 V grounded loads. It supports 3 V/5 V CMOS-compatible control, delivers analog current-sense feedback per channel, and enables deep cold-cranking operation down to 2.85 V while providing overload, short-to-VCC, open-load, and thermal shutdown diagnostics.

For engineers reviewing the EV-VND7E050AJ datasheet, EV-VND7E050AJ pinout, EV-VND7E050AJ application, or EV-VND7E050AJ equivalent, this board simplifies prototyping of protected high-side switching for ADAS sensors, headlamps, and resistive/inductive automotive loads with minimal external component design.

Technical Context

The EV-VND7E050AJ implements ST's VIPower M0-7 technology and integrates the VND7E050AJ IC - a dual-channel high-side driver with configurable latch-off fault recovery via FaultRST, multiplexed analog CurrentSense output (load current, supply voltage, die temperature), and S_EN–controlled OFF-state diagnosis disable. It supports simultaneous channel control and independent diagnostic readout.

Board-level implementation includes on-board 100 nF and 10 nF decoupling capacitors, 2.2 kΩ LED indicators, 4.7 kΩ sense-enable pull-up, 15 kΩ input pull-ups, and dedicated through-hole/SMD pads for Rsense mounting (TP1–TP2). Thermal resistance is 39 °C/W junction-to-ambient under specified 2-layer FR4 PCB conditions.

Key Specifications

Availability

EV-VND7E050AJ is available at Aetrix Electronics and suitable for automotive prototyping, ADAS sensor power management, and headlamp control applications requiring stable component supply, traceable sourcing, and lifecycle continuity support.

Supply support for EV-VND7E050AJ 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 vertically integrated manufacturing and IP.

The EV-VND7E050AJ belongs to ST's VIPower evaluation board family, developed to accelerate validation of smart power ICs in harsh automotive environments - especially for protected high-side driving of safety-critical and energy-sensitive loads.

FAQ

What is the purpose of the FaultRST pin on the EV-VND7E050AJ board?

FaultRST is an active-low pin that unlatches the VND7E050AJ outputs after overtemperature or power-limiting faults. When held low, it forces auto-restart behavior; when pulsed low then released, it clears latched faults. It is CMOS-compatible with both 3 V and 5 V logic levels and connects directly to J3 pin 7 on the board.

How do I configure the CurrentSense output for load current measurement?

The CurrentSense pin (J3 pin 8) delivers a proportional current (typically 1:2000) scaled by Rsense value and selected channel. Use SEL0/SEL1 (J3 pins 10/11) to multiplex between OUT0, OUT1, V_BAT, or die temperature. Enable sensing via S_EN (J3 pin 9); mount Rsense across TP1–TP2 or use the onboard SMD pads for precise calibration.

Does the EV-VND7E050AJ support cold-cranking conditions?

Yes - the board hosts the VND7E050AJ IC, which operates down to 2.85 V during supply voltage decrease (V_{USD_cranking}), meeting LV124 Rev. 2013 requirements for automotive deep cold-cranking. This ensures reliable headlamp or radar supply activation even during engine start with weak batteries.

Can I drive inductive loads like solenoids or relays with this evaluation board?

Yes - the VND7E050AJ IC integrates active clamp protection against inductive kickback, load current limitation, and fast thermal transient self-limiting. The board provides proper layout, decoupling (C1, C2, C4), and grounding (PGND planes) to safely switch automotive inductive loads up to its 40 A peak rating without external flyback diodes.