Texas Instruments UC3823A Manuals

This document introduces the improved versions of UC3823A and UC3823B and UC3825A and UC3825B family PWM controllers, which have improved performance, including higher switching frequency (up to 1MHz), shorter propagation delay (50ns), higher output current (2A peak) and lower startup current (100μA).

This document introduces the improved versions of UC3823/UC3825 PWMs. These versions have better performance than the traditional UC3823/UC3825, including: compatible with voltage-mode or current-mode control methods, practical operation at switching frequencies to 1 MHz, 50-ns propagation delay to output, high-current dual totem pole outputs (2-A peak), trimmed oscillator discharge current, low 100-µA startup current, pulse-by-pulse current limiting comparator and latched overcurrent comparator with full cycle restart.