UTC3843D
Overview
The UTC3843D/E 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 output stage, suitable for driving N channel MOSFETs,is low in the off state.
- Optimized for off-line and DC to DC converts *Low start up current(<1mA) *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 *500kHz operation *Low Ro error amp SOP-8
