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CRE2269 - Current Mode PWM Power Switch

Datasheet Summary

Description

Ground Feedback input pin.

PWM duty cycle is determined by voltage level into this pin and current-sense signal level at Pin 6.

Connected through a large value resistor to rectified line input for Start upchip supply and line voltage sensing.

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Datasheet preview – CRE2269

Datasheet Details

Part number CRE2269
Manufacturer CRE Semiconductor
File Size 405.94 KB
Description Current Mode PWM Power Switch
Datasheet download datasheet CRE2269 Datasheet
Additional preview pages of the CRE2269 datasheet.

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Full PDF Text Transcription

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CRE2269 Current Mode PWM Power Switch CRE2269 is a highly intergrated current mode PWM control IC for high performance, low standby power and cost effective offline flyback converter applications in abive 20W power level. PWM switching frequency at normal operation is externally programmable and trimmed to tight range. At no load or light load condition, the IC operates in extended”birst mode”ti minimize switching loss.Lower standby power and higher conversion efficiency is thus achieved. VDD low startup current and low operating current contribute to a reliable power on startup design withCRE2269. A large value resistor could thus be used in the startup circuit to minimize the standby power.
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