STMicroelectronics EV-VN7050AJ

Overview

EV-VN7050AJ from STMicroelectronics is a pre-assembled evaluation board centered on the VN7050AJ-E single-channel smart high-side driver in PowerSSO-16 package, operating from 4 V to 28 V supply, delivering 30 A current limit and 50 mΩ on-state resistance, with integrated MultiSense analog feedback for load current, VCC, and chip temperature - used for rapid prototyping of automotive load control circuits.

For engineers reviewing the EV-VN7050AJ datasheet, EV-VN7050AJ pinout, EV-VN7050AJ application, or EV-VN7050AJ equivalent, this board enables immediate validation of VIPower® M0-7 high-side switching behavior, fault reset timing, analog multiplexed diagnostics, and thermal performance under real 12 V automotive load conditions without external component design.

Technical Context

The EV-VN7050AJ implements ST's VIPower® M0-7 technology to support robust high-side driving of resistive, inductive, and capacitive automotive loads. It integrates configurable latch-off on overtemperature or power limitation, active overload management via power limitation, and undervoltage/overvoltage protection.

MultiSense functionality uses a single analog output (J3 Pin 8) multiplexed across three diagnostics - proportional load current (via external Rsense), VCC supply voltage, and TCHIP temperature - selected by dual digital address lines (SEL0/SEL1) and enabled by S_EN, all compatible with 3 V/5 V CMOS logic.

Key Specifications

Availability

EV-VN7050AJ is available at Aetrix Electronics and suitable for automotive body electronics development, ECU functional safety validation, and 12 V load driver qualification requiring stable component supply and traceable evaluation hardware.

Supply support for EV-VN7050AJ 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-VN7050AJ belongs to ST's VIPower® evaluation board family, purpose-built to accelerate adoption of smart power switches in automotive body control, lighting, and HVAC systems with integrated diagnostics and protection.

FAQ

What load types can be tested using the EV-VN7050AJ?

The board supports resistive (e.g., lamps), inductive (e.g., solenoids, relays), and capacitive (e.g., ECU input filters) 12 V automotive loads. Its VN7050AJ-E driver features active power limitation and thermal shutdown, enabling safe testing of transient-heavy inductive loads without external snubbers.

How is MultiSense feedback configured and read?

MultiSense output (J3 Pin 8) delivers a proportional current that must be converted to voltage via an external sense resistor. SEL0/SEL1 (J3 Pins 10–11) select between load current, VCC, or chip temperature; S_EN (J3 Pin 9) enables/disables the output. A 10-bit ADC with ≥1% accuracy is recommended for decoding.

Does the board support fault recovery without microcontroller intervention?

Yes - pulling FaultRST (J3 Pin 7) low enables auto-restart mode after fault clearance. Holding it high requires manual reset to unlatch output following thermal shutdown or overload events, supporting both fail-safe and fail-operational system architectures.

What is the role of the through-hole pads TP1–TP2?

TP1–TP2 are dedicated mounting points for a user-supplied through-hole sense resistor (e.g., 5 mΩ, 1 W) to enable OFF-state open-load detection and precise current sensing. The board also provides SMD pads adjacent to TP1–TP2 for surface-mount alternatives.