The VIPER222LSTR from STMicroelectronics is a sophisticated offline switching power management integrated circuit designed specifically for flyback topology AC-DC conversion applications. This compact power management solution addresses the critical design challenges of creating efficient, reliable, and space-constrained power supplies for low to medium power applications up to 13 watts.
At its core, this IC functions as an offline flyback converter with integrated switching capabilities, eliminating the need for external switching components and significantly simplifying circuit design while reducing overall system cost and board space. The device operates across a wide supply voltage range of 4.5V to 30V with a 30V startup voltage threshold, providing flexibility for various input configurations. Its impressive 730V breakdown voltage rating ensures robust performance and reliability in high-voltage applications, while the 60kHz switching frequency strikes an optimal balance between efficiency and component size.
The VIPER222LSTR comes in a compact 10-SSOP (Shrink Small Outline Package) surface mount configuration measuring just 3.90mm in width, making it ideal for space-constrained designs in consumer electronics, industrial controls, and auxiliary power supplies. The device operates reliably across an extended temperature range from -40°C to 150°C junction temperature, ensuring consistent performance in demanding environmental conditions. Its 80% maximum duty cycle capability allows for efficient power transfer while maintaining thermal stability.
Comprehensive fault protection features including current limiting, over-temperature protection, and over-voltage protection safeguard both the IC and connected loads from damage during abnormal operating conditions. The isolated output topology provides essential electrical isolation between primary and secondary circuits, meeting safety requirements for various applications. This device is particularly well-suited for battery chargers, adapter power supplies, standby power systems, LED lighting drivers, and smart home appliances where compact size, efficiency, and reliability are paramount.
The VIPER222LSTR is supplied in tape and reel packaging with 1450 units available and is fully RoHS3 compliant, meeting current environmental regulations. Alternative and equivalent models within the VIPER series include the VIPER22A, VIPER22ADIP, VIPER22AS, VIPER12A, VIPER16, VIPER26, and VIPER27, each offering variations in power handling, package options, and feature sets to accommodate different design requirements and power levels.
VIPER222LSTR Key Technical Attributes
Operating Temperature: -40°C ~ 150°C
Frequency - Switching: 60kHz
Power (Watts): 13 W
VIPER222LSTR Packing Size
The VIPER222LSTR comes in a compact 10-SSOP (Small Shrink Outline Package) case, with a width of 0.154 inches (3.90mm), optimized for efficient surface mount assembly. The package type is Tape & Reel (TR), ideal for automated manufacturing. Pin configuration consists of ten leads, arranged for secure and stable electrical connections, while its thermal characteristics support high-reliability operation in ambient temperatures from -40°C to 150°C. The package material is designed for robust environmental resistance, complying fully with RoHS3 standards to ensure safe and sustainable usage.
VIPER222LSTR Application
This integrated offline switcher IC is primarily intended for use in flyback topology power supplies, making it ideal for AC-DC conversion in consumer electronics, industrial control, LED drivers, standby power applications, and small auxiliary power modules. Its isolated output and robust power-handling capacity allow deployment in environments requiring high safety and stable voltage management.
VIPER222LSTR Features
The VIPER222LSTR integrates a high-voltage start-up circuit and features an internal power MOSFET switch, supporting an input voltage breakdown of up to 730V and a supply range from 4.5V to 30V. Key features include continuous current-mode operation, high switching frequency at 60kHz, and a maximum duty cycle of 80% for efficient power transfer. Enhanced protection mechanisms include current limiting, over-temperature shutoff, and over-voltage safeguard, ensuring extended device longevity and secure system operation. The IC supports a versatile application footprint, combining high efficiency with minimal external component requirements to simplify design and reduce total cost of ownership.
VIPER222LSTR Quality and Safety Features
Manufactured by STMicroelectronics, the VIPER222LSTR exemplifies strict quality standards. The device is RoHS3 compliant for environmental safety, and offers comprehensive fault protection that covers over-voltage, over-temperature, and current limiting scenarios. Its isolated architecture ensures safe power separation, while the surface-mount package type meets industry benchmarks for reliable and consistent soldering performance.
VIPER222LSTR Compatibility
The VIPER222LSTR seamlessly integrates with a wide variety of power management designs, especially those utilizing flyback topology. It supports both new and upgraded systems within the VIPER series, and is compatible with standard PCB layouts designed for 10-SSOP packages. Its electrical characteristics make it suitable for both commercial and industrial applications, facilitating easy replacement and design-in flexibility.
VIPER222LSTR Datasheet PDF
Our website offers the most authoritative and up-to-date datasheet for the VIPER222LSTR model. Customers are strongly encouraged to download the datasheet directly from this page to gain comprehensive insights into electrical specifications, application guidelines, reference designs, and reliability data.
Quality Distributor
IC-Components is proud to be a premium distributor for STMicroelectronics products, including the VIPER222LSTR. We offer industry-leading support and guarantee product authenticity. For fast and competitive pricing, request a quote directly on our website and experience trustworthy service and supply for all your integrated circuit needs.
