STMicroelectronics EV-VN7003ALH

Overview

EV-VN7003ALH from STMicroelectronics is an evaluation board pre-assembled with the VN7003ALH single-channel smart high-side driver in Octapak package, designed for automotive 12 V grounded load control via 3 V/5 V CMOS interface. It delivers 135 A current limiting, 3.5 mΩ on-state resistance, and supports deep cold cranking down to 3 V supply - compliant with LV124 Rev. 2013 - for glow plug, heating, and DC motor applications.

For engineers reviewing the EV-VN7003ALH datasheet, EV-VN7003ALH pinout, EV-VN7003ALH application, or EV-VN7003ALH equivalent, this board enables rapid prototyping of VIPower® M0-7 high-side switching with integrated diagnostics (Multisense analog current feedback, OFF-state open-load detection, thermal shutdown) and protection (undervoltage, overvoltage clamp, reverse battery, loss of ground/VCC).

Technical Context

The EV-VN7003ALH implements ST's VIPower® M0-7 technology to host the VN7003ALH IC, which integrates a vertical power MOSFET with embedded protection logic, analog current sensing, and fault latching via FR_DIAG and IN inputs. It operates across 4–28 V supply range with max transient tolerance up to 40 V.

Board-level design includes thermal vias (0.5 mm diameter, 1.1 mm spacing), 2-layer FR4 PCB (25 × 41.5 mm), and dedicated pads for through-hole or SMD sense resistor (Rsense) placement to scale Multisense output - enabling precise load current monitoring proportional to ILIMH = 135 A.

Key Specifications

Availability

EV-VN7003ALH is available at Aetrix Electronics and suitable for automotive prototyping, smart power distribution validation, and high-reliability actuator control development requiring stable component supply and traceable evaluation hardware.

Supply support for EV-VN7003ALH 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 with focus on safety, efficiency, and integration.

The EV-VN7003ALH belongs to ST's VIPower® evaluation platform family, engineered to accelerate adoption of smart power switches in automotive body electronics and electrified thermal systems.

FAQ

What is the purpose of the J3 connector on the EV-VN7003ALH board?

J3 is the primary I/O header providing access to key signals: IN0 (CMOS-compatible input), FR_DIAG (fault reset/latch control), Multisense (analog current feedback output), +5 V supply, and IN_PullUP (optional pull-up for OFF-state open-load detection). Pins marked "N/A" are unconnected per design and must not be used for signal routing.

How is current sensing implemented on this evaluation board?

Current sensing uses the VN7003ALH's internal Multisense function, delivering a proportional analog current output on J3 pin 8. Users select Rsense value (via through-hole TP1–TP2 or SMD pads) to scale output for measurement - e.g., 10 mΩ yields ~1.35 mA per 135 A full-scale load current - enabling real-time diagnostic monitoring without external shunt amplifiers.

Does the EV-VN7003ALH support latch-off or auto-restart after fault?

Yes - latch-off or auto-restart behavior is controlled by the FR_DIAG pin state. Pulling FR_DIAG low enables auto-restart after thermal or overload faults; holding it high latches the output off until FR_DIAG is toggled. This configuration also activates OFF-state open-load detection, as confirmed in the board schematic and device functional description.

Can this board drive inductive loads like DC motors or solenoids?

Yes - the VN7003ALH IC on this board is specifically qualified for inductive loads, featuring integrated clamp diodes, fast thermal transient limiting, and short-to-VCC detection. Its 135 A current limit, 3.5 mΩ RON, and 40 V transient rating make it suitable for automotive DC motors, solenoids, and relay replacement in 12 V systems - validated per ISO 7637-2 and LV124 requirements.