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Stock Status: 114121

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  • Encapsulation: SOP8
  • Brand: Fairchild
  • DateCode: 1035
  • ≥1: US $0.98102 US $0.88292
  • ≥10: US $0.83201 US $0.74880
  • ≥100: US $0.78233 US $0.70410

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Product Details SG6742HR

1. Description

> he highly integrated SG6742 series of PWM controllersprovides several features to enhance the performance offlyback converters.To minimize standby power consumption, a proprietarygreen-mode function provides off-time modulation tolinearly decrease the switching frequency at light-loadconditions. To avoid acoustic-noise problems, the minimumPWM frequency is set above 22KHz. This green-modefunction enables the power supply to meet internationalpower conservation requirements. With the internal high-voltage startup circuitry, the power loss due to bleedingresistors is also eliminated. To further reduce powerconsumption, SG6742 is manufactured using the BiCMOSprocess, which allows an operating current of only 2.7mA.Built-in synchronized slope compensation achieves stablepeak-current-mode control. The proprietary external linecompensation ensures a constant output-power limit over awide AC input voltage range, from 90VACto 264VAC.SG6742 provides many protection functions. In addition tocycle-by-cycle current limiting, the internal open-loopprotection circuit ensures safety should an open-loop oroutput short-circuit failure occur.

 

2. Features 

> High-Voltage Startup

> Low Operating Current: 2.7mA

> Linearly Decreasing PWM Frequency to 22KHz

> Frequency Hopping to Reduce EMI Emission

> Fixed PWM Frequency:

> ML and MR are 65KHz.

> HL and HR are 100KHz.


Reviews More>>

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    Thank you very much, the order was delivered very well, very good company, the order arrived at the appointed time and in good condition, from already thank you very much.
    I will provide some pictures of the item purchased.

    Chile

    RJP30H1DPD

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    Many, I got everything.Very good salesman.

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    Lithuania

    2SB1570,2SD2401,KTC3114A,88N30W,K2837

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    Thanks for your feedback!

    Bulgaria

    CM50DU-24F,J174

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    Excellent product and seller. This is the only place I buy my electronic products.

    United States

    SD1446

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    Best !!!

    Israel

    VT1603A,SDC602

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