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Part Number: AIC3843
Description: The AIC3843 control IC provides the features that are necessary to implement off-line or DC/DC Converter fixed-frequenc...
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AIC3843
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DataSheet
General Description
AIC3843 General Description
The AIC3843 control IC provides the features that are necessary to implement off-line or DC/DC Converter fixed-frequency current-mode schemes with a minimum number of external components. This integrated circuits features
an under-voltage lockout (UVLO) with approximately 300mA start-up current, a precision reference trimmed for accuracy at the error amplifier input, high gain error amplifier, current sensing comparator, logic to insure latched
operation, and a totem-pole output stage designed to source or sink high peak current. The output stage, suitable for driving the Nchannel MOSFETs, is low in the off state.
AIC3843 Maximum Ratings
AIC3843 Features
Low Start-Up Current (300mA Typical)
Internal Precision Reference.
500KHz Current-Mode Operation.
Pulse-by-Pulse Current Limiting.
Automatic Feed-Forward Compensation.
Optimized for Off-line and DC/DC Converters.
Under-voltage Lockout with Hysteresis.
Double Pulse Suppression.
High Current Totem Pole Output.
Internal Precision Reference.
500KHz Current-Mode Operation.
Pulse-by-Pulse Current Limiting.
Automatic Feed-Forward Compensation.
Optimized for Off-line and DC/DC Converters.
Under-voltage Lockout with Hysteresis.
Double Pulse Suppression.
High Current Totem Pole Output.
AIC3843 Typical Application
AC/DC Off-line Converter.
DC/DC Off-line Converter.
DC/DC Off-line Converter.
AIC3843 Connection Diagram
AIC3843CNTB
PDF/DataSheet Download
- Datasheet: AIC3843CNTB
- File Size: 194390 KB
- Manufacturer: AIC [Analog Intergrations Corporation]
- Click here to Download
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