UC3842BDG, ШИМ контроллер связь по току 14-SOIC

Описание UC3842BDG The UC3842BDG is a high-performance fixed frequency current-mode Pulse Width Modulation (PWM) Controller 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 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 undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, programmable output deadtime and a latch for single pulse metering. • Trimmed oscillator for precise frequency control • Automatic feed forward compensation • Internally trimmed reference with undervoltage lockout • High current totem pole output • Undervoltage lockout with hysteresis • Low startup and operating current Тип преобразователяflybackНаличие изоляции выходаестьНаличие внутреннего коммутаторанетМаксимальная частота преобразователя, кГц500Максимальная скважность преобразователя, %96Защита от сбоевcur.lim.Особенности управленияfrequency controlРабочая температура,°С0…+70Корпусsoic-14(0.154 inch)Вес, г0.25