On-Bright OB2305
OB2305 is a high performance offline PSR Primary-side sensing and regulation without controller for low power AC/DC charger and TL431 and opto-coupler adapter applications. It operates in primary-side High precision constant voltage and current sensing and regulation. tia OB2305 offers comprehensive protection coverage with auto-recovery feature including Cycle-by-Cycle current limiting, VDD over voltage n protection, feedback loop open protection, short e circuit protection, built-in leading edge blanking, VDD under voltage lockout (UVLO), OTP etc.| Part No. | OB2305 |
|---|---|
| Datasheet | OB2305 Download |
| Manufacturer |  On-Bright |
| Description | High Precision CC/CV Primary-Side Controller |
| Buy | Stock & Price |
GENERAL DESCRIPTION
FEATURES
OB2305 is a high performance offline PSR● Primary-side sensing and regulation without controller for low power AC/DC charger and TL431 and opto-coupler adapter applications. It operates in primary-side
● High precision constant voltage and current sensing and regulation. Consequently, regulation at universal AC input opto-coupler and TL431 could be eliminated.
● Multi-mode PWM/PFM operation for efficiency Proprietary Constant Voltage (CV) and Constant improving Current (CC) control is integrated as shown in the
● Less than 30mW standby power consumption figure below. at 230V with typical application circuit In CC control, the current and output power setting
● Programmable CV and CC regulation can be adjusted externally by the sense resistor
● Built-in dynamic signal detection from 2nd-side Rs at CS pin. In CV control, multi-mode operations synchronous rectification are utilized to achieve high performance and high
● Built-in line voltage and primary winding efficiency.
