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AMC3842B Hoja de datos

Número de pieza
componentes Descripción
Fabricante
AMC3842B
ADDTEK
ADDtek Corp ADDTEK
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DESCRIPTION
The AMC3842B/43B/44B/45B are fixed frequency current-mode PWM controllers specially designed for OFF-Line switching power supply and DC-to-DC converters with a minimum number of external components. These devices feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totempole output which is suitable for driving MOSFETs.

FEATURES
„● Low Start-Up current (max. 200µA)
„● Optimized for Off-Line and DC-to-DC Converters
„● Maximum Duty Cycle
„● U.V.L.O. with Hysteresis
„● Operating Frequency Up to 500KHz
„● Internal Trimmed Bandgap Reference
„● High Current Totem Pole Output
„● Error Amplifier With Low Output Resistance
„● Available in 8-Pin Plastic DIP and Surface Mount 14-Pin S.O.I.C.
„● Identical pin assignment to earlier UC384X series.

 

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