DEVELOPER MICROELECTRONICS DP2539B
DP2539B is a high performance offline PWM power switch for low power AC/DC charger and adapter applications. It operates in primary-side sensing and regulation. DP2539B offers comprehensive protection coverage with auto-recovery features including Cycle-by-Cycle current limiting, VDD Over Voltage Protection (VDD OVP), short circuit protection, built-in leading edge blanking, VDD under voltage lockout (UVLO), OTP, etc.| Part No. | DP2539B |
|---|---|
| Datasheet | DP2539B Download |
| Manufacturer | DEVELOPER MICROELECTRONICS |
| Description | High Precision CC/CV Primary-Side PWM Power Switch |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Consequently, opto-coupler and TL431 could be eliminated. High Precision Constant Voltage (CV) and Constant Current (CC) control are integrated as shown in the figure below. In CC control, the current and output power setting can be adjusted externally by the sense resistor Rs at CS pin. In CV control, multi-mode operations are utilized to achieve high performance and high efficiency. In addition, good load regulation is achieved by the built-in Cable Drop Compensation. Device operates in PFM in CC mode as well at large load condition and it operates in PWM with frequency reduction at light/medium load. The chip consumes very low operation current, it can achieve less than 75mW standby power. High precision constant voltage (CV) and constant current (CC) can be achieved by DP2539B. DP2539B is offered in DIP8 package. TYPICAL APPLICATIONFEATURES
● ± 5% Constant Voltage Regulation and Current Regulation at Universal AC Input● Primary Side Regulation (PSR) Without TL...
