UPSRB03
UPSRB03 is HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR manufactured by Unisonic Technologies.
UNISONIC TECHNOLOGIES CO., LTD
Preliminary
LINEAR INTEGRATED CIRCUIT
HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR
- DESCRIPTION
The UTC UPSRB03 is a primary control unit for switch mode charger and adapter applications. The controlled variable is transferred by an auxiliary winding from the secondary to the primary side. The device uses multi-mode operations to achieve high performance and high efficiency. Device operations in PFM in CC mode at large load condition and it operates in PWM with frequency reduction at light/medium load which can cancel audio noise.
The UTC UPSRB03 operates in primary-side sensing and regulation. Opto-coupler and TL431 could be...
