RVPW012-FJ2-R | RECOM

Current Mode PWM Controller, RVPW012-FJ2-R, RECOM

The RVPW012 is a flyback converter that achieves voltage regulation by sampling the primary winding of the transformer, enabling Primary Side Regulation (PSR) feedback at operating frequencies of several hundred kHz. Its internal output voltage sampling circuit requires a sampling voltage time width as short as 400 nanoseconds. The built-in loop compensation circuit, featuring a fast dynamic response, ensures excellent stability and responsiveness of the switching power supply. The RVPW012 integrates multiple control functions and requires only simple peripheral components, which can be configured according to actual design needs. It supports three key functions-startup, feedforward compensation, and programming the shutdown speed of the internal power MOSFET-using external resistors.

Additionally, the peak current of the power MOSFET can be programmed via a resistor for “lossless” current sensing. With two resistors, both input undervoltage and overvoltage protection thresholds can be set simultaneously. The device also includes comprehensive protection features such as overload protection(OLP), output short-circuit protection(SCP), output overvoltage protection(OVP), and overtemperature protection(OTP). It is capable of self-recovery once abnormal conditions are resolved, thereby maximizing the reliability of the switching power supply system.

Features

• Turn on in Boundary Conduction Mode (BCM) at the Heavy Load
• Integrated Lossless Current Sampling
• Programmable Peak Current
• Programmable Power MOSFET Driving Speed
• Programmable Input Undervoltage and Overvoltage Protection
• Programmable Feedforward Compensation
• Programmable Soft Start
• Internal PSR Loop Compensation
• Output Diode Voltage Drop Temperature Compensation

Applications

• Energy Storage Isolation Power Converters
• Industrial Power Conversion
• BMS Auxiliary Power Supplies
• POE Power Supplies
• Isolation Communication Power Supplies