RVPW014-FJ1-CT | RECOM

Current Mode PWM Controller, RVPW014-FJ1-CT, RECOM

The RVPW014 is a highly integrated power control chip designed for multiple power topologies, including Flyback, Boost, and Buck, and supports various output voltage feedback methods such as SSR (Secondary-Side Regulation), PSR (Primary-Side Regulation), and resistive voltage division. The chip supports PSR feedback at switching frequencies of several hundred kHz. Its internal output voltage sampling circuit functions in both CCM (Continuous Conduction Mode) and DCM (Discontinuous Conduction Mode), with a sampling time requirement as short as 400ns. A built-in loop compensation circuit featuring fast dynamic response ensures excellent system stability and transient performance for switching power supplies. RVPW014 integrates multiple control features while requiring only simple external components, allowing flexible design based on application needs. It supports three programmable functions-startup timing, feedforward compensation, and internal power MOSFET shutdown rate-through a single external resistor.

Peak current of the power MOSFET can also be set via a resistor, enabling “lossless” current sensing. Input undervoltage and overvoltage protection thresholds can be configured simultaneously using just two resistors. A frequency jitter function is available by connecting a capacitor between the FB pin and GND. The jitter period is programmable via the capacitor value. If the FB pin is directly connected to GND, the frequency jitter function is disabled. RVPW014 includes comprehensive protection features: overcurrent protection (OCP), overload protection (OLP), output short-circuit protection (SCP), output overvoltage protection (OVP), and overtemperature protection (OTP). The chip supports automatic recovery once the fault condition is cleared, thereby enhancing the overall reliability of the power supply system.

Features

• Suitable for PSR and SSR flyback/Boost/Buck
• Integrated Lossless Current Sampling
• Programmable Peak Current
• Programmable Power MOSFET Driving Speed
• Programmable Frequency Jitter Function
• Programmable Input Undervoltage and Overvoltage Protection
• Internal Feedforward Compensation Function
• Internal Soft Start and Slope Compensation
• Internal PSR Loop Control in CCM/DCM Mode
• Direct Optocoupler Interface

Applications

• DCM/CCM Flyback Converter
• Industrial Power Conversion
• BMS Auxiliary Power Supplies
• POE Power Supplies
• Isolation Communication Power Supplies