Description
OB2365A Adaptive Multi-Mode PWM Controller GENERAL .
OB2365A is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback conver.
Features
* Power on soft start reducing MOSFET Vds stress
* Multi-Mode Operation 77KHz maximum clamping frequency in QR
mode @ Full Load in high line voltage 65KHz minimum clamping frequency in CCM
mode @ Heavy Load in low line voltage Valley switching operation @ Green mode Burst Mode @ Light Load &
Applications
* At normal load condition, it operates in QR mode in high line input voltage. To minimize switching loss, the maximum switching frequency in QR mode is internally limited to 77 KHz. When the loading goes low, it operates in PFM mode with valley switching for high power conversion efficiency. When th