VIPER25LN - STMicroelectronics

Manufacturer Part Number

VIPER25LN

Manufacturer

stmicroelectronics

Introduction

VIPER25LN by stmicroelectronics is an AC DC converter and offline switch integrated circuit, designed for efficient power conversion and management solutions.

Product Features and Performance

Integrated high-voltage MOSFET

800V avalanche rugged power section

Pulse-width modulation (PWM) control

Flyback topology

Operates at 136kHz switching frequency

Provides isolated output

Features internal current limiting, over temperature protection, and over voltage protection

Start-up voltage of 14V

Supply voltage range from 8.5V to 23.5V

Supports up to 20W power output

Operating temperature range from -40°C to 150°C

Product Advantages

High breakdown voltage suitable for various AC mains applications

Built-in protections enhance product reliability and safety

Isolated power supply design for better noise immunity

Efficiency in energy conversion due to optimized switching frequency

Capable of handling high-temperature operations

Key Technical Parameters

Voltage Breakdown: 800V

Voltage Start Up: 14V

Voltage Supply (Vcc/Vdd): 8.5V ~ 23.5V

Frequency Switching: 136kHz

Power (Watts): 20W

Operating Temperature: -40°C ~ 150°C

Quality and Safety Features

Current Limiting

Over Temperature Protection

Over Voltage Protection

Compatibility

Compatible with various types of transformers for different output voltage requirements

Application Areas

Switch mode power supplies (SMPS)

Power adapters

LED drivers

Standby power supplies

Product Lifecycle

Status: Obsolete

Availability of replacements or upgrades should be checked with stmicroelectronics or authorized distributors.

Several Key Reasons to Choose This Product

Integrated high-voltage capabilities reduce external component count

Built-in safety features ensure robust operation

Support for a wide range of supply voltages enhances versatility

The flyback topology allows for simple and efficient isolated designs

Suitable for high-temperature environments, expanding application possibilities