JW1520D Datasheet | JoulWatt Technology

DESCRIPTION FEATURES The JW1520D is an offline CV and CC Flyback power switch with primary-side regulation (PSR), which features quasi-resonant (QR) operation for all operation modes. QR control improves efficiency by reducing the switching loss and also benefits EMI performance with nature frequency variation. The JW1520D bines PWM and PFM control at different input and load condition for highest average efficiency. JW1520D has internal HV current source for startup to eliminate conventional startup resistor and save standby mode energy consumption, it can ply with the most stringent efficiency regulations such as Energy Star’s 5-Star Level and Co C Tier II specifications. JW1520D offers primary side accurate constant voltage and constant output current regulation, it also eliminates the need for external loop pensation ponents. pany’s Logo is Protected, “JW” and “JOULWATT” are Registered Trademarks of Joulwatt Technology Co., Ltd. - Integrated with 650V MOSFET - Tight PSR CC/CV Regulation - Built-In High-Voltage Startup - Wider VDD Operation Range - QR Operation for High Efficiency - Maximum 85k Hz Switching Frequency - Internal CC/CV Loop pensation - Internal Cable pensation - Programmable Line pensation - Very Low Standby Power Consumption - Cycle-by-Cycle Current Limit - Reliable Fault Protections: VDD OVP, VS OVP/UVP, Brown-In and Brown-Out, OTP, CS Open and SCP Protection - SOP-8 package APPLICATIONS - Battery Chargers for Cellular Phones - AC/DC Power Adapter - Standby and Auxiliary Power Supplies TYPICAL APPLICATION ~ ~ Naux Np Ns Vo Co DVCC VDD SW GND SW VCC JW7700A RVCC Typical application circuit with...