STMicroelectronics VIPER12ADIP-E

The VIPER12ADIP-E is a monolithic power IC that integrates a high-voltage power MOSFET with a PWM controller. It is typically used in switching power supply topologies such as flyback, forward, and buck converters. This IC is particularly designed for applications requiring high efficiency and low standby power consumption. Functions 1. PWM Control: The VIPER12A features a pulse-width modulation controller for efficient power conversion. 2. High-Voltage Start-Up: The IC can be powered directly from the mains voltage, eliminating the need for an external start-up circuit. 3. Integrated MOSFET: The inclusion of a high-voltage MOSFET reduces component count and simplifies designs. 4. Protection Features: It includes various protection functions, such as over-voltage protection, under-voltage lockout, and thermal shutdown. 5. Low Standby Consumption: Designed for low power consumption in standby modes, making it ideal for energy-saving applications. Applications 1. Switching Power Supplies: Primarily used in isolated and non-isolated power supplies for a wide range of devices. 2. Adapters and Chargers: Commonly found in mobile chargers and power adapters for consumer electronics. 3. LED Drivers: Can be utilized in LED lighting applications for efficient power management. 4. Home Appliances: Employed in products like washing machines, refrigerators, and air conditioners. 5. Industrial Power Supplies: Suitable for various industrial applications needing compact and efficient power modules. Alternative Parts 1. VIPER22A: Offers improved performance and additional features suitable for slightly different applications. 2. VIPER17: Another option in the VIPER family with different specifications, and power ranges. 3. LNK series from Power Integrations: Competing products designed for similar power supply applications. 4. TOPSwitch family from Power Integrations: Alternate solutions offering built-in power switches for power supply designs. Embedded Modules 1. VIPER Evaluation Boards: Various evaluation boards are available from STMicroelectronics for prototyping with the VIPER series. 2. Development Kits: Complete kits that include the VIPER12A for quicker development cycles. 3. Reference Designs: ST provides reference designs that integrate the VIPER12A for different applications, complete with schematics and layout guidelines. Related Q&A Q1: What is the maximum input voltage rating for the VIPER12ADIP-E? A1: The VIPER12ADIP-E can handle a maximum input voltage of up to 265V AC, making it suitable for direct connection to the mains power. Q2: What types of power supplies can the VIPER12ADIP-E be used to design? A2: The VIPER12ADIP-E is commonly used to design flyback, forward, and buck-type power supplies, particularly in low to medium power applications. Q3: What are the built-in protection features of the VIPER12ADIP-E? A3: Built-in protection features include over-voltage protection, under-voltage lockout, thermal shutdown, and current limit protection to enhance reliability and safety. Q4: How does the VIPER12ADIP-E contribute to energy efficiency? A4: The VIPER12ADIP-E features a low standby consumption operation mode, allowing power supplies designed with it to comply with energy-saving standards and reduce overall energy consumption. Q5: Can the VIPER12ADIP-E be used in LED lighting applications? A5: Yes, the VIPER12ADIP-E is well-suited for LED driver applications due to its efficient power management capabilities and compact design.