The VIPER25HN is a high-performance Power Management Integrated Circuit (PMIC) designed by STMicroelectronics, specifically engineered for offline flyback converter applications. This advanced IC addresses critical power conversion challenges in electronic design, offering robust performance across a wide temperature range of -40°C to 150°C.
At its core, the VIPER25HN is a sophisticated offline switcher utilizing flyback topology, operating at a switching frequency of 225kHz. The device is capable of delivering up to 20W of power with exceptional efficiency and reliability. Its integrated design incorporates internal switches and comprehensive fault protection mechanisms, including current limiting, over-temperature, and over-voltage safeguards.
The circuit is compatible with supply voltages ranging from 8.5V to 23.5V, with a startup voltage of 14V. A standout feature is its high voltage breakdown capability of 800V, ensuring robust performance in demanding electrical environments. The isolated output design provides additional safety and flexibility for various power conversion applications.
Physically, the VIPER25HN is packaged in a 7-DIP (Dual In-line Package) through-hole mount configuration, making it easy to integrate into existing circuit designs. It is lead-free and fully RoHS compliant, meeting modern environmental and manufacturing standards.
Primary application areas include consumer electronics, industrial control systems, power supplies, and embedded systems requiring efficient and reliable power conversion. The device's versatility and built-in protection features make it particularly suitable for designs demanding high reliability and compact form factors.
Equivalent or alternative models in the VIPer plus series include:
- VIPER20HN
- VIPER22HN
- VIPER26HN
- VIPER27HN
These models share similar architectural principles but offer variations in specific performance parameters to suit different design requirements.
The VIPER25HN stands out for its comprehensive integrated protection, high-efficiency power conversion, and robust design, making it an excellent choice for engineers seeking a reliable offline switching solution.
VIPER25HN Key Technical Attributes
Manufacturer Part Number VIPER25HN
Manufacturer STMicroelectronics
Main Category Integrated Circuits (ICs)
Small Classification PMIC - AC DC Converters, Offline Switchers
VIPER25HN Packing Size
Type Tube
Material 7-DIP (0.300", 7.62mm), 7 Leads
Size 7-DIP
Thermal Characteristics Operating Temperature -40°C ~ 150°C (TJ)
Electrical Properties Voltage - Supply (Vcc/Vdd): 8.5 V ~ 23.5 V
VIPER25HN Application
The VIPER25HN is designed for use in AC-DC conversion and offline switching applications, specifically suitable for isolated and non-isolated flyback converters. It is utilized in power supply sections across various electronic appliances and devices requiring efficient AC-DC conversion.
VIPER25HN Features
The VIPER25HN integrates a PWM controller and power MOSFET with robust fault protection capabilities including current limiting, over-temperature shutdown, and over-voltage lockout ensuring reliable operation. It features a high breakdown voltage of 800V and operates at a switching frequency of 225kHz. The topology adopted by VIPER25HN is the flyback topology, which is suitable for generating isolated output voltages necessary for multiple output converters. The device also supports an internal switch and features a moisture sensitivity level of 1 (Unlimited), highlighting its reliable performance in varied environmental conditions.
VIPER25HN Quality and Safety Features
This device adheres to RoHS compliance, meaning it is lead-free, promoting environmentally safe usage. It is designed with rigorous safety features like over-temperature protection and voltage breakdown resilience.
VIPER25HN Compatibility
It supports a wide voltage supply range from 8.5 V to 23.5 V, designed in a convenient DIP7 package which ensures compatibility with standard through-hole mounting methods, simplifying integration into various existing designs.
VIPER25HN Datasheet PDF
For complete and authoritative specifications, refer to the VIPER25HN datasheet available for download on our website. This datasheet provides in-depth technical information ensuring you utilize the IC to its fullest capabilities.
Quality Distributor
IC-Components is proud to be a premium distributor of STMicroelectronics products. For reliable delivery and authentic components like the VIPER25HN, ensure to get a quote directly through our website. Choose IC-Components for guaranteed quality and competitive pricing.
