The UC3842B,UC3843B series are high performance fixed frequency current mode controllers。 They are specifically designed for Off−Line and DC−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。
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