The VIPER28LDTR from STMicroelectronics is a high-performance, low-power offline switched-mode power supply (SMPS) integrated circuit. Designed for a wide range of applications, this chip is particularly suited for household, industrial, and consumer electronics where energy efficiency and reliability are crucial. The VIPER28LDTR is a part of the VIPerPlus family known for its energy-saving features and robustness.

Key Features

• High Voltage Capability: The VIPER28LDTR operates with a supply voltage up to 800V, making it capable of withstanding high energy surges and simplifying the design of the power supply.
• Energy Efficient: It includes features such as a pulse frequency modulation (PFM) mode under light-load conditions, which reduces switching frequency to lower power consumption.
• Advanced Protection: The device comes with multiple protection features including overload protection, overvoltage protection, and thermal shutdown, ensuring safe operation under abnormal conditions.
• Low Standby Power: It is designed for low standby power consumption, which is essential for meeting energy-saving regulations.
• Extended Power Range: The VIPER28LDTR can deliver up to 18 W in wide range input voltage conditions and up to 30 W with an input voltage of 230 VAC, making it versatile for various power applications.
• Minimal External Components: The integrated high-voltage startup and sense FET allows for a reduced external component count, which can lead to cost savings and a more compact design.

Applications

The VIPER28LDTR is ideal for a variety of applications including switch mode power supplies (SMPS) for adapters, power supplies for LED lighting, auxiliary power supplies for home appliances, and industrial power supplies. Its flexibility and efficiency make it an excellent choice for designers looking to create compact, energy-efficient power solutions.

Package and Availability

This device is available in a SO-16N package, which is suitable for surface-mount technology (SMT) and is available on tape and reel (TR) for automated assembly processes. For detailed specifications, application notes, and further information, designers and engineers are encouraged to consult the datasheet and support documentation available from STMicroelectronics.