鼎芯SC2585D价格

　　sc2585dfeatures

　　◆ uvlo 7.5v/17.5v

　　◆ multi-mode operation

　　◆ current mode control

　　◆ low operation current

　　◆ max. operation frequency:100khz

　　◆ extra low standby(<75mw)

　　◆ built-in jittering frequency

　　◆ internal leading edge blanking

　　◆ audio noise free operation

　　◆ vdd under voltage lockout with hysteresis

　　◆ cycle-by-cycle over current protection

　　◆ internal over load protection (olp)

　　◆ external or internal over temperature

　　protection (otp)

　　◆ output over voltage protection(output ovp)

　　◆ internal vdd over voltage protection (ovp)

　　◆ output short protection (osp)

　　applications

　　offline ac/dc flyback converter for

　　◆ ac/dc adapter

　　◆ set-top box power supplies

　　◆ auxiliary power supply

　　◆ open-frame smps

　　deion

　　sc2585d is a high performance ac/dc power

　　supply controller which use advanced control

　　technology to build peak current mode pwm

　　flyback power supplies. when the load is pretty

　　light, the device operates in ‘burst mode’ to

　　minimize the standby power loss. the device

　　operates in green mode and quasi-resonant

　　mode at low and medium loading. at full loading,

　　the device operates in fixed frequency mode. as a

　　result, these different operating mode keeps high

　　efficiency in the whole loading range.

　　the ultra-low operating current at light load

　　ensures that the sc2585d is ideal for applications

　　targeting the newest regulatory standards for

　　average efficiency and standby power .

　　the sc2585d is designed especially for low

　　power purpose, furitful protection such as auto-

　　recovery including cycle-by-cycle current limiting

　　(ocp), over load protection (olp), vdd under

　　voltage

　　lockout

　　(uvlo),

　　over

　　temperature

　　protection (otp), and over voltage protection

　　(ovp). achieved excellent emi performance by

　　internal frequency jitter technique.