SC4809B: High-Performance Current-Mode PWM Controller | Semtech

The SC4809A SC4809B SC4809C is a 10 pin BICMOS primary side current mode controller for use in Isolated DC-DC and off-line switching power supplies. It is a highly integrated solution, requiring few external components. It features a high frequency of operation, accurately programmable maximum duty cycle, current mode control, line voltage monitoring, supply UVLO, low start-up current, and programmable soft start with user accessible reference. It operates in a fixed frequency, highly desirable for Telecom applications. Features a separate sync pin which simplifies synchronization to an external Clock Feeding the Oscillator of one device to the sync of another forces biphase operation which reduces input ripple and Filter size. The SC4809A SC4809B SC4809C have different threshold and VREF to accommodate a wide variety of applications. By Semtech Corporation
SC4809B 's PackagesSC4809B 's pdf datasheet
SC4809BIMSTR
SC4809BIMSTRT




SC4809B Pinout, Pinouts
SC4809B pinout,Pin out
This is one package pinout of SC4809B,If you need more pinouts please download SC4809B's pdf datasheet.

SC4809B Application circuits
SC4809B circuits
This is one application circuit of SC4809B,If you need more circuits,please download SC4809B's pdf datasheet.


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SC4809B Application Notes SC4809B RoHS SC4809B Circuits SC4809B footprint