Texas Instruments UC1845A-EP Enhanced Product Current-Mode Pwm Controller UC1845AMDREP

The UC1845A-EP is a current-mode PWM controller designed for off-line and DC-to-DC converters, featuring a wide operating temperature range of -55°C to 125°C. It operates with a low startup current of less than 0.5 mA and includes automatic feed-forward compensation, pulse-by-pulse current limiting, and enhanced load response characteristics. The device supports a maximum duty cycle of less than 50% and incorporates under-voltage lockout with hysteresis, ensuring reliable operation. The output stage can sink at least 10 mA during under-voltage conditions, and it is optimized for high-frequency operation up to 500 kHz. The UC1845A-EP is packaged in an 8-SOIC format and is suitable for applications requiring robust performance and reliability.