Unisonic Technologies UPSRB03
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.| Part No. | UPSRB03 |
|---|---|
| Datasheet | UPSRB03 Download |
| Manufacturer |  Unisonic Technologies |
| Description | HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR |
| Buy | Stock & Price |
DESCRIPTION
The UTC 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 eliminated. It also eliminates the need of loop compensation circuitry while maintaining stability. The UTC UPSRB03 achieves high precision CV/CC regulation and high power efficiency. It offers comprehensive protection coverage with auto-recovery features including Cycle-by-cycle current limiting, output over voltage protection, VDD over voltage protection, feedback loop open protection, short circuit protection, leading edge blanking, VDD under voltage lockout, etc.●
FEATURES
* Multi-Mode control for cancel audio noise * ±5% constant voltage regulation at universal AC input * Primary side control without TL431 and opto-coupler * High precision constant current regulation at universal AC input * Programmable CV an...
