STMicroelectronics EV-VND7140AJ

Overview

EV-VND7140AJ from STMicroelectronics is an evaluation board pre-assembled with the VND7140AJ dual-channel smart high-side driver in PowerSSO-16 package, operating from 4–28 V supply, delivering 12 A current limit per channel and 140 mΩ on-state resistance. It enables rapid prototyping of automotive load control with integrated MultiSense analog feedback for current, voltage, and temperature diagnostics.

For engineers reviewing the EV-VND7140AJ datasheet, EV-VND7140AJ pinout, EV-VND7140AJ application, or EV-VND7140AJ equivalent, this board supports immediate validation of VIPower® M0-7 high-side switching behavior, fault reset sequencing, multiplexed analog sensing, and thermal shutdown response under real load conditions.

Technical Context

The EV-VND7140AJ implements ST's VIPower® M0-7 technology to deliver robust high-side drive for 12 V automotive systems, integrating configurable latch-off on overtemperature or power limitation via dedicated FaultRST pin. Its MultiSense output provides time-multiplexed analog signals - proportional to load current (high-precision current mirror), VCC supply voltage, and TCHIP temperature - selectable via SEL0/SEL1 digital inputs.

Board-level design includes thermal vias (0.5 mm diameter, 1.1 mm spacing) and FR4 double-layer PCB (25 mm × 41.5 mm, 35 µm Cu) achieving 39 °C/W junction-to-ambient thermal resistance. S_EN pin enables/disables OFF-state open-load diagnosis, supporting low-power module operation and shared external sense resistor configurations.

Key Specifications

Availability

EV-VND7140AJ is available at Aetrix Electronics and suitable for automotive body control modules, lighting driver validation, HVAC actuator testing, and electronic parking brake development requiring stable component supply and fast-turn evaluation support.

Supply support for EV-VND7140AJ 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-VND7140AJ belongs to ST's VIPower® evaluation platform family, developed specifically to accelerate validation of smart power switches in automotive load-driving applications with integrated diagnostics and protection.

FAQ

What is the purpose of the FaultRST pin on the EV-VND7140AJ board?

The FaultRST pin is an active-low CMOS-compatible input that unlatches the VND7140AJ outputs after a fault event such as overtemperature or short-circuit. When held low, it configures the device for auto-restart mode instead of latched-off state, enabling recovery without external controller intervention.

How is MultiSense feedback configured and used on this evaluation board?

MultiSense output delivers time-multiplexed analog current proportional to load current, VCC, or chip temperature. Selection is controlled by SEL0 and SEL1 pins; S_EN enables or disables the function. A user-mounted sense resistor (through-hole or SMD) on TP1–TP2 sets current-sense scaling, with default through-hole resistor included.

Does the EV-VND7140AJ support reverse battery protection?

The EV-VND7140AJ board itself does not include reverse battery protection circuitry. However, the underlying VND7140AJ IC supports reverse battery protection when external components (e.g., series diode or MOSFET) are added per ST's recommended application schematic in the device datasheet.

What PCB layout features enable thermal performance on this evaluation board?

This board uses a 2-layer FR4 design (1.6 mm thick, 35 µm Cu) with 0.5 mm diameter thermal vias spaced at 1.1 mm intervals beneath the PowerSSO-16 footprint. These vias connect the exposed die-pad to internal ground planes, achieving a measured R_thj-amb of 39 °C/W under standard test conditions.