OB2632
Overview
- Multi-Mode Operation control IC with high voltage startup, optimized for o 125KHz max frequency mode @ Peak high performance, low standby power Load consumption and wide output voltage range PD o 65KHz or 45KHz fixed frequency mode @ adapter solutions, together with PD secondary Full Load controller, such as OB2612. The controller is as o Valley switching operation @ Green mode well compatible with cost effective offline flyback o Burst Mode @ Light Load & No Load converter applications covering a wide output
- Adaptive loop gain compensation with Iovp range. current detection At full loading, the IC operates in fixed frequency
- Ultra low operating current at light/no load mode. When the loading goes low, it operates in
- Internal OCP compensation for universal line Green mode with valley switching for high power voltage conversion efficiency. When the load is very small,
- Extended burst mode control for improved the IC operates in ‘Extended Burst Mode’ to minimize the standby power loss. As a result, high conversion efficiency can be achieved in the to whole loading range. High voltage startup is implemented in OB2632CP, l which features with short startup time and low tia standby power loss. VCC low startup current and low operating current contribute to a reliable power on startup and low n standby design with OB2632MP. OB2632 offers complete protection coverage e including cycle-by-cycle current limiting (OCP), over load protection (OLP), over temperature fid protection (OTP), output short(SCP), output and VDD over voltage protection. Excellent EMI performance is achieved with On-Bright n proprietary frequency shuffling technique. o The tone energy at below 23KHz is minimized to avoid audio noise during operation. c OB2632 is offered in SOP8 or SOT23-6 package. ht APPLICATIONS ig Offline AC/DC flyback con
