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AMC3842B Datasheet (PDF) - List of Unclassifed Manufacturers

AMC3842B Datasheet PDF - List of Unclassifed Manufacturers
Part # AMC3842B
Download  AMC3842B Download

File Size   365.03 Kbytes
Page   10 Pages
Manufacturer  ETC [List of Unclassifed Manufacturers]
Direct Link  
Logo ETC - List of Unclassifed Manufacturers
Description CURRENT MODE PWM CONTROLLER

AMC3842B Datasheet (PDF)

Go To PDF Page Download Datasheet
AMC3842B Datasheet PDF - List of Unclassifed Manufacturers

Part # AMC3842B
Download  AMC3842B Click to download

File Size   365.03 Kbytes
Page   10 Pages
Manufacturer  ETC [List of Unclassifed Manufacturers]
Direct Link  
Logo ETC - List of Unclassifed Manufacturers
Description CURRENT MODE PWM CONTROLLER

AMC3842B Datasheet (HTML) - List of Unclassifed Manufacturers

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AMC3842B Product details

[ADD Microtech Corp.]

DESCRIPTION
The AMC3842B/43B 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 totem pole output which is suitable for driving MOSFETs. The under voltage lock-out (U.V.L.O.) is designed to operated with 200µA typ. start-up current, allowing an efficient bootstrap supply voltage design. The U.V.L.O. thresholds for the AMC3842B are 16V (on) and 10V (off) which are ideal for off-line applications. The corresponding typical threshold for the AMC3843B are 8.4V (on) and 7.6V (off). The AMC3842B/43B can operated within 100% duty cycle.

FEATURES
■ Low Start-Up current ( typ. 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.

APPLICATIONS
■ Off-line flyback or forward converters.
■ DC-to-DC buck or boost converter.
■ Monitor Power Supply




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