DESCRIPTION
It features a programmable frequency up to 1MHZ, external programmable soft start, pulse-by-pulse current limit and over current protection for both voltage and current modes, as well as a line monitoring input with hysteresis to reduce stress on the power components. A ramp pin allows for slope compensation to be programmed by external resistors for current mode. This also allows for operation in voltage mode with voltage feed forward. A unique oscillator is utilized which allows two SC4806 to be synchronized together and work out-of-phase. This feature minimizes the input and output ripples, and reduces stress and size on input/output filter components. The outputs are configured for push-pull format, dead time between the 2 outputs is programmable depending on the size of the timing components. The SC4806 features a turn on threshold of 8 volts . The device is available at a MLP-12 package. SC4806 Multiple Function FEATURES
90 µA starting current Pulse-by-pulse curre...
Semtech Corporation
