Description
OB2511x High Precision CC/CV Primary-Side PWM Power Switch Controller GENERAL .
OB2511x is a high performance offline PSR power switch for low power AC/DC charger and adapter applications.
Features
* including Cycle-by-Cycle current limiting, VDD over voltage protection, short circuit protection, built-in leading edge blanking, VDD under voltage lockout (UVLO), OTP etc. OB2511x is offered in CDFN8-7 package. Vo ±5%
Io
ICC
Fig.1. Typical CC/CV Curve
FEATURES
* Primary-side sensing and regula
Applications
* It operates in primary-side sensing and regulation. Consequently, opto-coupler and TL431 could be eliminated. Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below. In CC control, the current and output power setting can be adjusted externall