The STMicroelectronics VIPER26LD is a highly integrated, high-voltage power supply IC designed for a variety of applications, including offline power supplies, LED drivers, and other power management solutions. This device is part of the VIPER family, which is known for its efficiency and versatility in providing power conversion solutions.

## Key Features

1. Integrated High-Voltage Power MOSFET: The VIPER26LD includes a high-voltage power MOSFET, which simplifies the design and reduces the number of external components required.

2. Wide Input Voltage Range: The device can operate over a wide input voltage range, typically from 85V to 265V AC, making it suitable for global applications.

3. High Efficiency: The VIPER26LD is designed to achieve high efficiency, which is crucial for reducing energy consumption and heat generation in power supply applications.

4. Built-in Protection Features: The IC includes several protection features such as overvoltage protection (OVP), overcurrent protection (OCP), thermal shutdown (TSD), and a brown-out protection feature, ensuring reliable operation and safety.

5. Low Standby Power Consumption: The VIPER26LD is optimized for low standby power consumption, making it ideal for energy-efficient designs.

6. Flexible Output Configuration: The device can be configured for various output types, including constant voltage (CV) and constant current (CC) modes, which is particularly useful for LED driving applications.

7. Compact Package: The VIPER26LD is available in a compact DIP-8 package, which is suitable for space-constrained applications.

## Specifications

- Input Voltage Range: 85V to 265V AC
- Output Power: Up to 26W in a typical application
- Switching Frequency: 65 kHz (typical)
- Efficiency: Up to 85% or higher, depending on the application
- Operating Temperature Range: -40°C to +150°C
- Protection Features:
- Overvoltage Protection (OVP)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Brown-out Protection
- Package Type: DIP-8

## Applications

The VIPER26LD is suitable for a wide range of applications, including:

- Offline Power Supplies: Ideal for use in AC-DC converters for consumer electronics, appliances, and industrial equipment.
- LED Drivers: The device can be used to drive LED lighting systems, providing constant current regulation for optimal performance.
- Battery Chargers: The VIPER26LD can be employed in battery charging applications, ensuring efficient power conversion and management.
- Home Appliances: Suitable for various home appliances that require reliable and efficient power supply solutions.

## Conclusion

The STMicroelectronics VIPER26LD is a versatile and efficient power supply IC that offers a range of features and protections, making it suitable for various applications in power management. Its integrated high-voltage MOSFET, wide input voltage range, and low standby power consumption make it an excellent choice for designers looking to create reliable and energy-efficient power supply solutions. Whether used in consumer electronics, LED drivers, or industrial applications, the VIPER26LD provides a robust solution for modern power conversion needs.