UC2843D, ШИМ контроллер, 30В-7.6В питание, 450кГц, 13.5В/1A выход, SOIC-14

Полупроводники - Микросхемы\Микросхемы Управления Питанием\ШИМ КонтроллерыThe UC2843D is a current-mode Pulse Width Modulation (PWM) Controller provides the necessary features to implement off-line or DC to DC fixed frequency current-mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start up current less than 1mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-channel MOSFETs, is low in the off state. • Low start-up current• Automatic feed forward compensation• Pulse-by-pulse current limiting• Enhanced load response characteristics• Under-voltage lockout with hysteresis• Double pulse suppression• High current totem pole output• Internally trimmed bandgap reference• Low RO Error amplifier• Green product and no Sb/Br