SG1843 Datasheet | Linfinity

L I N D O C # : 1842 SG1842/SG1843 Series CURRENT MODE PWM CONTROLLER N F I N I T E N N O VA T I O N R O D U C T I O N DESCRIPTION The SG1842/43 family of control IC's provides all the necessary Features to implement off-line fixed frequency, current-mode switching power supplies with a minimum number of external ponents. Current-mode architecture demonstrates improved line regulation, improved load regulation, pulse-by-pulse current limiting and inherent protection of the power supply output switch. The bandgap reference is trimmed to ±1% over temperature. Oscillator discharge current is trimmed to less than ±10%. The SG1842/43...