RVPW016系列

RVPW016 is a highly integrated DC-DC controller designed to support a wide range of power conversion topologies and output voltage feedback methods. It features an integrated start-up circuit that accommodates an ultra-wide input voltage range from 4V to 100V. To prevent reverse current flow, an internal diode blocks current from flowing back from VDD to VIN. An internal differential amplifier is employed for current sampling, significantly enhancing the signal-to-noise ratio (SNR). The current-sensing threshold voltage is set at 156mV, effectively balancing performance with low power consumption in the current detection circuitry. To reduce system cost and improve reliability, the design eliminates the need for a current transformer. Under heavy-load conditions, the RVPW016 operates at the maximum switching frequency, which is programmable via an external resistor. As the load decreases, the controller linearly reduces the switching frequency to maintain high efficiency. This adaptive frequency scaling also minimizes both light-load output ripple and no-load power consumption. The device supports Primary-Side Regulation (PSR) at operating frequencies up to several hundred kilohertz. Its internal output voltage sampling circuit is compatible with both Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM), with a minimum sampling pulse width of 350ns. A built-in loop compensator with fast dynamic response enhances the stability and transient performance of the system. To ensure high system reliability, the RVPW016 incorporates precisely adjustable undervoltage lockout (UVLO) with hysteresis, as well as output short-circuit protection(SCP), output overvoltage protection(OVP), and over-temperature protection(OTP).