SC4910B: High-Performance Secondary Side Controller With Synchronous Rectifier | Semtech

The SC4910A B is an integrated, full featured, second- ary side controller designed for use in single ended and isolated Switch mode power supplies with synchronous rectification where efficiency and fast transient response are of primary concern. The SC4910A B has outputs for both primary FET and secondary synchronous rectifica- tion. The primary drive output is designed to drive a small and low cost pulse transformer to isolate the primary FET driver. The secondary control makes it much easier to monitor and control the system load with tight control loops and implement load current sharing and synchro- nous rectification. The SC4910A B features synchronous rectification, multi- phase link capability, programmable secondary side delay, programmable switching frequency and program- mable maximum duty cycle. It is designed for either current mode or voltage mode operation. The SC4910A has a typical turn-on threshold of 9V and the SC4910B has a threshold of 4.5V. By Semtech Corporation
SC4910B 's PackagesSC4910B 's pdf datasheet

SC4910B Pinout, Pinouts
SC4910B pinout,Pin out
This is one package pinout of SC4910B,If you need more pinouts please download SC4910B's pdf datasheet.

SC4910B Application circuits
SC4910B circuits
This is one application circuit of SC4910B,If you need more circuits,please download SC4910B's pdf datasheet.

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