OB2201 Description
OB2201 is a high performance flyback QuasiResonant (QR) controller optimized to achieve high efficiency in the universal input range and full loading range with effective system cost. At full loading, the IC operates in fix frequency (52KHz) CCM mode in the low line input range and operates in QR mode in high line input range. In this way, high efficiency in the universal input range at full loading can be achieved.
OB2201 Key Features
- Multi-Mode Operation
- At Full Loading, Fix Frequency (52KHz) CCM Operation @ Low Line and QR Mode Operation @ High Line Input
- Quasi-Resonant Operation at Normal Load
- Pulse Frequency Modulation (PFM) Operation at Light Load
- Burst Mode at No Load Adaptive Frequency Shuffling and Slope pensation @ Fix Frequency CCM Mode Programmable OTP with la