STMicroelectronics EV-VND7050AJ

Overview

EV-VND7050AJ from STMicroelectronics is an evaluation board pre-assembled with the VND7050AJ dual-channel smart high-side driver in PowerSSO-16 package, operating from 4–28 V supply, delivering 30 A current limit per channel, 50 mΩ on-state resistance, and integrated MultiSense analog feedback for load current, VCC, and chip temperature - used for rapid prototyping of automotive body control modules.

For engineers reviewing the EV-VND7050AJ datasheet, EV-VND7050AJ pinout, EV-VND7050AJ application, or EV-VND7050AJ equivalent, this board enables immediate validation of VIPower® M0-7 high-side switching behavior, fault reset sequencing, multiplexed diagnostic output timing, and thermal performance under real load transients without external component design.

Technical Context

The EV-VND7050AJ implements ST's VIPower M0-7 technology to evaluate the VND7050AJ's dual high-side switch architecture with independent CMOS-compatible IN0/IN1 inputs, active fault management via FaultRST (active-low), and configurable latch-off on overtemperature or power limitation. It supports OFF-state open-load detection and short-to-VCC sensing using dedicated pins.

Diagnostic functionality is delivered through a single multiplexed MultiSense pin, controlled by SEL0/SEL1 address lines and enabled by S_EN, allowing time-multiplexed readout of proportional load current (via external Rsense), supply voltage, and junction temperature - all referenced to PGND with ±5% accuracy per mode.

Key Specifications

Availability

EV-VND7050AJ is available at Aetrix Electronics and suitable for automotive body electronics development, industrial PLC I/O module validation, and electric vehicle auxiliary load control requiring stable component supply and traceable evaluation hardware.

Supply support for EV-VND7050AJ 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, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade analog devices.

The EV-VND7050AJ belongs to ST's VIPower® evaluation platform family, engineered specifically to accelerate qualification of smart power switches in automotive ECUs where diagnostics, safety, and thermal reliability are critical.

FAQ

What load types can be validated using the EV-VND7050AJ board?

The board supports resistive (headlamps, heaters), inductive (solenoids, relays, fuel pumps), and capacitive (ECU input filtering) automotive loads. Its 30 A current limit and 50 mΩ R_ON allow direct testing of 12 V systems up to ~360 W per channel, with built-in short-to-ground and short-to-VCC detection confirming safe operation under fault conditions.

How is MultiSense feedback configured and read on this board?

MultiSense output is enabled via S_EN and selected using SEL0/SEL1 logic levels (00 = load current, 01 = VCC, 10 = TCHIP). The current-mode output requires an external sense resistor (supplied through-hole or SMD pads TP1–TP2) and is converted to voltage via onboard R10 (2.2 kΩ) and C2 (10 nF) filter. Output scaling is 1 mA per amp of load current, 1 mA per volt of VCC, or 1 mA per °C of junction temperature.

Does the EV-VND7050AJ support reverse battery protection?

No - reverse battery protection requires external components as stated in the datasheet. The board includes no polarity-reversal circuitry; users must add an external series MOSFET or diode if testing in environments where battery terminals may be misconnected. The VND7050AJ IC itself does not integrate reverse-battery hardening.

Can the FaultRST pin be used for automatic recovery after thermal shutdown?

Yes - holding FaultRST low configures auto-restart mode, where outputs automatically re-enable after fault clearance and thermal recovery. In default (pulled-high) configuration, FaultRST acts as a manual reset: a low pulse unlatches latched faults. This behavior is verified on the board using J3 pin 7, compatible with 3 V/5 V CMOS logic levels.