This post explains for the semiconductor OB5269.
The Part Number is OB5269.
The function of this semiconductor is High Voltage Green Mode PWM Controller.
Manufacturers : On-Bright
Preview images :
High Voltage Green Mode PWM Controller OB5269 GENERAL Description OB5269 is a highly integrated current mode PWM control IC with high voltage start up, optimized for high performance, low standby power consumption and cost effective offline flyback converter applications. PWM switching frequency at normal operation is internally fixed and is trimmed to a tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss. Very low standby power consumption and very high conversion efficiency is thus achieved. High voltage startup is implemented in OB5269, which features with short startup time and low standby current. OB5269 offers complete protection coverage with auto-recovery including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), and VDD under voltage lockout (UVLO). It also provides the protections with latched shut down including over temperature protection (OTP), and over voltage (fi […]