UC3842A, UC3843A, UC2842A, UC2843A
High Performance Current Mode Controllers
The UC3842A, UC3843A 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.
These integrated circuits feature a trimmed oscillator for precise duty cycle control, 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.
Also included are protective features consisting of input and reference under
voltage lockouts each with hysteresis, c...