UC3845 IC

The UC3845 is a high-performance, fixed-frequency current-mode PWM controller optimized for off-line and DC-to-DC converter applications, featuring low startup current (<1mA) and a high-current totem-pole output suitable for driving power MOSFETs. It offers precise duty cycle control (limited to <50%) and includes under-voltage lockout (UVLO) with 8.5V (on) / 7.6V (off) thresholds.