STMicroelectronics

VN800PT

VN800PT Description

The VN800PT from STMicroelectronics is a high-side power switch belonging to the VIPower™ series, designed for general-purpose load driving applications. This obsolete N-channel MOSFET-based driver integrates a 1:1 input-to-output ratio and operates within a 5.5V to 36V load voltage range, making it suitable for robust power distribution tasks. Packaged in PPAK (Surface Mount) and supplied in tubes, it delivers up to 700mA output current with a low Rds(on) of 135mΩ (max), ensuring efficient power handling. While no longer in production, its legacy design remains relevant for systems requiring compact, high-performance switching with built-in protection.

VN800PT Features

• High-Side Configuration: Simplifies circuit design by eliminating the need for a separate supply voltage (Vcc/Vdd Not Required).
• Integrated Protections: Features fixed current limiting, over-temperature, and over-voltage shutdown for enhanced reliability.
• Auto-Restart & Status Flag: Automatically recovers from faults and provides diagnostic feedback, reducing downtime.
• Low Power Loss: Optimized Rds(on) minimizes heat dissipation, improving energy efficiency.
• RoHS3 & REACH Compliant: Meets environmental standards, suitable for eco-conscious designs.
• Compact PPAK Package: Space-saving surface-mount form factor ideal for dense PCB layouts.

VN800PT Applications

The VN800PT excels in:

• Automotive Systems: ECU power management, lighting controls, and solenoid driving due to its wide voltage range and fault tolerance.
• Industrial Automation: Relay/actuator control, where auto-restart ensures uninterrupted operation.
• Consumer Electronics: Power distribution in appliances requiring over-current protection (e.g., smart home devices).
• Legacy Equipment Maintenance: Repair or replacement of older designs leveraging its obsolete-but-proven architecture.

Conclusion of VN800PT

Though marked obsolete, the VN800PT remains a testament to STMicroelectronics’ VIPower™ innovation, combining high efficiency, robust protection, and compact design. Its auto-recovery and diagnostic features make it a resilient choice for fault-critical systems, while its wide load voltage range ensures versatility. Engineers maintaining legacy systems or seeking cost-effective alternatives for moderate-current switching will find its performance-to-footprint ratio compelling. For new designs, consider modern equivalents with updated availability.