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OB2560

On-Bright Electronics
Part Number OB2560
Manufacturer On-Bright Electronics
Description High Precision CC/CV Primary-Side Controller
Published Sep 16, 2017
Detailed Description On-Bright confidential to OB2560 High Precision CC/CV Primary-Side Controller GENERAL DESCRIPTION OB2560 is a high per...
Datasheet PDF File OB2560 PDF File

OB2560
OB2560

Overview
On-Bright confidential to OB2560 High Precision CC/CV Primary-Side Controller GENERAL DESCRIPTION OB2560 is a high performance offline PSR controller for low power AC/DC charger and adapter 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 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 at large load condition and it operates in PWM with frequency reduction at light/medium load.
The chip consumes very low operation current.
It achieves less than 100mW standby power to meet strict standby power standard.
OB2560 offers co...


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