The VIPER27LN is a sophisticated Power Management Integrated Circuit (PMIC) designed by STMicroelectronics, specifically engineered for offline AC-DC conversion applications. This advanced integrated circuit leverages a flyback topology to deliver efficient power conversion with robust performance characteristics.
Featuring a through-hole 7-DIP package, the VIPER27LN is purpose-built for high-reliability power supply designs that demand exceptional environmental resilience. The device operates across an impressive temperature range of -40°C to 150°C, making it suitable for extreme industrial and automotive environments.
The circuit offers a comprehensive suite of integrated protections, including current limiting, over-temperature, and over-voltage safeguards. It can handle a supply voltage range of 8.5V to 23.5V, with a startup voltage of 14V, and delivers up to 20W of power output. The integrated internal switches and 60kHz switching frequency enable compact and efficient power conversion.
Key technical highlights include an 800V breakdown voltage, 80% maximum duty cycle, and inherent output isolation, which makes this device particularly valuable in applications requiring electrical separation between input and output stages. The flyback topology ensures reliable energy transfer with minimal component complexity.
Typical application areas encompass industrial power supplies, LED lighting systems, consumer electronics, adapters, and embedded control systems where compact, reliable power conversion is critical. Its lead-free and RoHS compliance further enhances its suitability for modern electronic design.
Equivalent or alternative models in the VIPer Plus series include the VIPER20, VIPER22, and VIPER25, which offer similar functional characteristics with slight variations in specific performance parameters.
The VIPER27LN represents an excellent solution for engineers seeking a robust, integrated power conversion solution with comprehensive protection features and reliable performance across diverse operating conditions.
VIPER27LN Key Technical Attributes
Manufacturer Part Number VIPER27LN
Series VIPer plus
Topology Flyback
VIPER27LN Packing Size
Package Type 7-DIP
Encapsulation DIP-7
Packaging Tube
Operating Temperature -40°C ~ 150°C (TJ)
VIPER27LN Application
VIPER27LN is designed primarily for AC DC conversion and offline switching. This integrated circuit can be applied in a variety of devices that require efficient power supply solutions, such as consumer electronics, power adapters, and auxiliary power supplies for industrial systems.
VIPER27LN Features
The VIPER27LN integrates a PWM controller and a MOSFET with a breakdown voltage of 800V, enabling robust performance in flyback power supply applications. It supports a frequency of switching at 60kHz and features an internal switch capable of handling up to 20 Watts of power. The device is designed with fault protection mechanisms including current limiting, over temperature protection, and over voltage protection. It provides isolated output with a start-up voltage of 14V and operates under a duty cycle of 80%.
VIPER27LN Quality and Safety Features
The VIPER27LN has a Moisture Sensitivity Level (MSL) of 1, indicating unlimited floor life under typical ambient conditions. It conforms to RoHS standards, ensuring compliance with current environmental and safety regulations.
VIPER27LN Compatibility
This integrated circuit is compatible with various types of consumer and industrial electronics demanding reliable voltage conversion and power regulation with fault protection features.
VIPER27LN Datasheet PDF
Our website provides the most authoritative datasheet for the VIPER27LN. We recommend downloading the datasheet on the current page for comprehensive technical details and specifications.
Quality Distributor
IC-Components is a premium distributor for STMicroelectronics products, including the VIPER27LN. We suggest getting a quote directly on our website to enjoy reliable service and quality assurance directly from a trusted source in electronic component distribution.
