The VIPER27HN by STMicroelectronics is a high-performance Power Management Integrated Circuit (PMIC) designed for offline flyback converter applications, offering robust power conversion solutions for various electronic systems. This advanced integrated circuit is specifically engineered to address complex power management challenges in demanding electronic environments.
Featuring a sophisticated flyback topology, the VIPER27HN operates at a switching frequency of 115kHz, enabling efficient power conversion with exceptional performance characteristics. The device can handle power outputs up to 20W and supports a wide supply voltage range of 8.5V to 23.5V, making it versatile for multiple application scenarios.
Key design features include comprehensive fault protection mechanisms, encompassing current limiting, over-temperature, and over-voltage protection. These integrated safeguards ensure reliable operation and enhance the overall system reliability. The circuit is capable of withstanding high voltage breakdowns up to 800V and maintains stable performance across an extensive temperature range from -40°C to 150°C.
The through-hole mounting 7-DIP package facilitates easy integration into various electronic designs, while its lead-free and RoHS-compliant construction meets contemporary environmental standards. An 80% duty cycle and internal switching capabilities further contribute to its high-efficiency power conversion performance.
Primary application areas include consumer electronics, industrial control systems, lighting solutions, and power supply designs requiring isolated voltage conversion. The device's startup voltage of 14V and advanced internal architecture make it particularly suitable for compact, energy-efficient electronic implementations.
Equivalent or alternative models in the VIPer plus series that offer similar characteristics include the VIPER25, VIPER26, and VIPER28, each with slight variations in specific performance parameters. Engineers can select the most appropriate variant based on precise system requirements.
This integrated circuit represents a sophisticated solution for designers seeking a reliable, efficient, and protected offline power conversion component with excellent thermal and electrical performance characteristics.
VIPER27HN Key Technical Attributes
Integrated Circuit (IC) type: PMIC - AC DC Converters, Offline Switchers
Voltage - Supply (Vcc/Vdd): 8.5V ~ 23.5V
Power (Watts): 20W
VIPER27HN Packing Size
Package type: Tube
Material: Plastic
Configuration: 7-DIP, 8-DIP (0.300", 7.62mm), 7 Leads
Thermal characteristics: Operating Temperature: -40°C ~ 150°C (TJ)
Electrical properties: Voltage - Breakdown: 800V
VIPER27HN Application
The VIPER27HN is widely used in low-power applications requiring an isolated flyback converter topology, such as power supplies for consumer electronics, lighting systems, and stand-by power units.
VIPER27HN Features
The VIPER27HN by STMicroelectronics is a robust integrated circuit designed for offline switching with a flyback topology operating at a frequency of 115kHz. It includes fault protection features such as current limiting, over temperature, and over voltage protections, ensuring reliable operation under adverse conditions. The IC also has an internal switch which enhances its efficiency. This model offers a voltage startup of 14V and supports a duty cycle of up to 80%.
VIPER27HN Quality and Safety Features
Moisture Sensitivity Level (MSL) is 1 (Unlimited), ensuring stable performance under various humidity conditions. The VIPER27HN also complies with RoHS, making it lead-free and environmentally friendly, ensuring safety and sustainability.
VIPER27HN Compatibility
The VIPER27HN is compatible with through-hole mounting types, aiding in easier application in a variety of circuit designs and facilitating replacement and maintenance.
VIPER27HN Datasheet PDF
For comprehensive specifications and application guidelines, customers are encouraged to download the most authoritative datasheet of the VIPER27HN available on our website.
Quality Distributor
IC-Components is a premium distributor of STMicroelectronics products. We guarantee the availability and authenticity of the VIPER27HN, and suggest that customers obtain a quote through our website for the best purchasing experience.





