WIY2263 Overview
WIY2263 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications in sub 30W range. 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.
WIY2263 Key Features
- Burst Mode function
- Low startup current (4uA)
- Low operating current (1.4mA)
- Built-edge blanking
- Built-in synchronized slope pensation
- Current mode
- External Programmable PWM Switching Frequency
- By-cycle current limit protection (OCP)
- VDD over-voltage clamping protection
- Low voltage shut down function (UVLO)