STMicroelectronics

VN920

VN920 Description

The VN920 from STMicroelectronics is a high-side power switch designed for general-purpose load driving applications. Part of the VIPower™ series, this obsolete device integrates a single N-channel MOSFET with a 1:1 input-to-output ratio, capable of handling up to 30A continuous current. It operates over a wide load voltage range (5.5V to 36V) and features a low Rds(on) of 16mΩ (max), ensuring minimal power dissipation. The VN920 is housed in a Through-Hole Pentawatt package, making it suitable for robust industrial and automotive applications.

VN920 Features

• High-Side Configuration: Simplifies circuit design by eliminating the need for an external supply (Vcc/Vdd).
• Advanced Protection: Includes fixed current limiting, over-temperature shutdown, and over-voltage protection for enhanced reliability.
• Auto-Restart Function: Automatically recovers from fault conditions, reducing system downtime.
• Low On-Resistance: 16mΩ (max) minimizes conduction losses, improving efficiency.
• RoHS3 & REACH Compliant: Meets environmental and regulatory standards.
• On/Off Interface: Simple control via a logic-level input.

VN920 Applications

The VN920 is ideal for:

• Automotive Systems: Power distribution in ECUs, lighting, and motor control.
• Industrial Load Switching: Solenoids, relays, and actuators in harsh environments.
• Power Management: Hot-swapable modules and redundant power supplies.
• Consumer Electronics: High-current switching in appliances and power tools.

Conclusion of VN920

The VN920 stands out for its high current capability, integrated protections, and efficient thermal performance, making it a reliable choice for demanding applications. While marked as obsolete, its VIPower™ technology and rugged design ensure it remains a viable solution for legacy systems or designs requiring proven performance. Engineers should consider alternative STMicroelectronics offerings for new designs but can leverage the VN920's auto-restart and fault resilience in existing implementations.