STMicroelectronics EV-VN9008AJ

Overview

EV-VN9008AJ from STMicroelectronics is a pre-assembled evaluation board for the VN9008AJ single-channel smart high-side driver in PowerSSO-16 package, supporting 4–28 V operation, 8 mΩ on-resistance, 81.6 A current limit, and analog multiplexed diagnostics including load current sense, thermal shutdown, and open-load detection. It enables rapid integration into automotive power distribution systems such as headlamps and ADAS sensor supplies.

For engineers reviewing the EV-VN9008AJ datasheet, EV-VN9008AJ pinout, EV-VN9008AJ application, or EV-VN9008AJ equivalent, this board provides validated reference design, plug-and-play load/microcontroller interfacing, and diagnostic signal access via CN5/CN6/CN8/CN9 connectors per DB4886 Rev 1.

Technical Context

The EV-VN9008AJ implements ST's VIPower M09 technology to evaluate the VN9008AJ high-side driver, which integrates CMOS-compatible 3 V/5 V input logic, fault latching with dedicated FaultRST pin, and multichannel analog feedback (CS pin) for real-time load current, supply voltage, and die temperature sensing.

Board-level design follows ST-recommended external components: 100 nF PGND decoupling (C1), 10 nF CS filter (C2), 0 Ω jumpers for IN/S_EN/FaultRST routing (R6/R9/R16), and configurable pull-up networks (R1/R3/R4/R11/R12) enabling cold-cranking compliance per LV124 Rev 2013.

Key Specifications

Availability

EV-VN9008AJ is available at Aetrix Electronics and suitable for automotive lighting control, ADAS sensor power supply, and high-power actuator drive applications requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for EV-VN9008AJ 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 VN9008AJ product line targets automotive smart power distribution, delivering robust high-side switching with integrated diagnostics and protection for 12 V systems compliant with LV124 and ISO 16750 standards.

FAQ

What is the purpose of the CN8 connector on the EV-VN9008AJ board?

CN8 provides access to the multiplexed analog diagnostic signals: Pin 5 carries the CS output (proportional load current, VBAT_ADC, and temperature), and Pin 6 routes the VBAT_ADC measurement point directly to the microcontroller ADC input, enabling real-time supply monitoring without additional signal conditioning.

How does the FaultRST pin function on this evaluation board?

FaultRST is routed to CN9 Pin 2 and allows external active-low reset of latched faults (e.g., overtemperature or overload). When asserted, it clears the internal fault latch and re-enables the output; when left floating or held high, latch-off remains active after fault detection per device configuration.

Can the EV-VN9008AJ be used to evaluate multiple VN90xx devices?

No - the EV-VN9008AJ is specifically laid out for the VN9008AJ in PowerSSO-16. While VN9004AJ/VN9012AJ share the same package, differences in current rating, RON, and internal protection thresholds require separate board validation; no jumper or configuration enables cross-device evaluation.

What external components are required to operate the board with a microcontroller?

None beyond standard interconnect: connect microcontroller GPIO to CN9 Pin 1 (IN), CN9 Pin 2 (FaultRST), and CN9 Pin 5 (SEn); route CN5/CN6 Pins 6–7 to system GND; supply VBAT via CN9 Pin 6 or J2; and attach load between OUTPUT 10–16 terminals and system ground.