OB2279 Description
OB2279 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 externally programmable and trimmed to tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss.
OB2279 Key Features
- On-Bright Proprietary Frequency Shuffling Technology for Improved EMI Performance
- Power On Soft Start
- Extended Burst Mode Control For Improved
- Audio Noise Free Operation
- External Programmable PWM Switching
- Internal Synchronized Slope pensation
- Low VIN/VDD Startup Current(3uA) and Low
- Leading Edge Blanking on Current Sense Input
- plete Protection Coverage with selective
- Auto recovery
OB2279 Applications
- On-Bright Proprietary Frequency Shuffling Technology for Improved EMI Performance