OB2273A Description
OB2273A is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications. PWM switching frequency at normal operation is internally fixed and is trimmed to tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss.
OB2273A Key Features
- Level 5 pliance with <100mW standby power at universal AC input
- Power on Soft Start Reducing MOSFET Vds Stress
- Frequency shuffling for EMI
- Extended Burst Mode Control For Improved
- Audio Noise Free Operation
- Fixed 65KHZ Switching Frequency
OB2273A Applications
- Level 5 pliance with <100mW standby power at universal AC input