STMicroelectronics VIPER25LDTR - High-Voltage Converter

The VIPER25LDTR from STMicroelectronics is a cutting-edge, off-line switched-mode power supply (SMPS) with an integrated 730V avalanche-rugged power MOSFET, tailored to deliver exceptional performance and reliability for a wide range of applications. This high-voltage converter is part of the VIPerPlus family, renowned for their energy-efficient solutions and ability to simplify the design of compact power supplies.

With its fixed 60 kHz switching frequency, the VIPER25LDTR enables a cost-effective design by allowing the use of smaller-sized filtering components, thereby reducing the overall size and cost of the power supply. The device is capable of delivering a power output of up to 5W in wide range input voltage conditions or up to 12W when used with an external power switch, making it highly versatile for various design requirements.

The VIPER25LDTR also features multiple protection mechanisms to ensure the safety and longevity of the power supply. These include overvoltage protection (OVP), overload protection (OLP), and thermal shutdown with hysteresis. Additionally, the device incorporates a soft-start function that limits inrush current, providing a smoother startup and further enhancing the safety of the component during the initial power-up phase.

Another significant advantage of the VIPER25LDTR is its low standby power consumption. With less than 30 mW at 265 VAC with no load, it meets the most stringent energy-saving standards, which is crucial for applications that require compliance with eco-design norms.

Its flexibility is further demonstrated by its ability to be used in a variety of converter topologies, such as buck, buck-boost, and flyback circuits. This makes the VIPER25LDTR an excellent choice for designers who are looking to implement a cost-effective, energy-efficient, and compact power solution in applications such as home appliances, consumer electronics, power adapters, and auxiliary power supplies.

Overall, the VIPER25LDTR stands out as a robust and versatile high-voltage converter that offers designers a balance between performance, compactness, and energy efficiency, all backed by the reliability and support of STMicroelectronics, a leader in semiconductor solutions.