SC4808B-1

The SC4808B-1 is a dual-ended, high frequency, integrated WM controller, optimized for isolated applications that equire minimum space. It can be configured for current r voltage mode operation with required control circuitry here secondary side error amplifier is used.

Some of the key features are high frequency operation of MHz that allows the use of smaller components thus ving cost and valuable board space. An internal ramp n the Current Sense pin allows Internal Slope ompensation programmed by an external resistor. Other eatures include programmable frequency up to 1MHz, ulse by Pulse current and Line Monitoring Input with ysteresis to reduce stress on the power components. unique oscillator is used to synchronize two SC4808B- 's to work out of phase. This minimizes the input and utput ripple thus reducing noise on the output line and educing stress and size of input/output filter components.

The dual outputs can be configured in Push-Pull, Half Bridge nd Full Bridge format with programmable dead time etween two outputs depending on the size of the timing omponents.

The SC4808B-1 also features a turn on threshold of 4.4V nd is available in MSOP-10 package.