UC1823A, UC2823A, UC2823B, UC3823A, UC3823B UC1825A, UC2825A, UC2825B, UC3825A, UC3825B
SLUS334F – AUGUST 1995 – REVISED AUGUST 2022
High-Speed PWM Controller
1 Features
• Improved versions of the UC3823/UC3825 PWMs • 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 • Latched overcurrent comparator with full cycle
restart
2 Description
The UC3823A and UC3823B and the UC3825A and UC3825B family of PWM controllers are improved ver...