UC3844AD8 Datasheet PDF - First Components International

The UC3844A series of high performance fixed frequency current mode controllers are specifically designed for off–line and dc–to–dc converter applications offering the designer a cost effective solution with minimal external components. This integrated circuit features an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.

● Output Deadtime Adjustable from 50% to 70%
● Current Mode Operation to 500 kHz
● Automatic Feed Forward Compensation
● Latching PWM for Cycle–By–Cycle Current Limiting
● Internally Trimmed Reference with Undervoltage Lockout
● High Current Totem Pole Output
● Undervoltage Lockout with Hysteresis
● Low Startup and Operating Current