STMicroelectronics VIPER53SP13TR Power Switch IC

The VIPER53SP13TR is a high-performance, off-line switched-mode power supply (SMPS) primary switcher IC from STMicroelectronics, designed for a wide range of applications. This versatile integrated circuit combines a dedicated current mode PWM controller with a high voltage power MOSFET on the same silicon chip, offering an efficient and compact solution for power supply units.

Key Features

• Integrated Power MOSFET: With an 18 Ohm on-resistance, the built-in high voltage MOSFET ensures efficient power handling and reduced component count.
• Adjustable Operating Frequency: The operating frequency is adjustable up to 200 kHz, allowing flexibility in the design of the power supply, including optimization of transformer size and efficiency.
• Multiple Protection Features: The VIPER53SP13TR includes overvoltage protection, overload protection, thermal shutdown, and hysteresis. These features enhance the safety and reliability of the power supply under various conditions.
• Low Standby Power Consumption: Thanks to its very low start-up and quiescent currents, the device ensures minimal power usage when in standby, contributing to energy savings.
• Soft-Start Functionality: The soft-start feature limits the inrush current on startup, which minimizes stress on the power supply components and improves system longevity.
• Pulse-by-Pulse Current Limiting: This function provides effective protection against short circuits by limiting the current in each cycle, safeguarding both the IC and the power supply components from damage.
• Direct Drive Capability: The VIPER53SP13TR can directly drive the transformer, eliminating the need for an auxiliary winding, which simplifies the design and reduces costs.

Applications

The VIPER53SP13TR is ideal for a variety of applications that require efficient power conversion, including:

• Switched Mode Power Supplies (SMPS)
• Adapters and Chargers for Consumer Electronics
• Standby and Auxiliary Power Supplies
• LED Lighting Drivers

With its robust design and comprehensive set of features, the VIPER53SP13TR from STMicroelectronics is an excellent choice for designers looking to create reliable and efficient power supplies for both industrial and consumer electronics markets.