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Leadtrend LD7841KGS product image
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Leadtrend LD7841KGSRoHS

Manufacturer
LeadtrendAsian Brands
MPN
LD7841KGS
LCSC Part #
C5370454
Packaging
SOP-8
Customer #
Key Attributes
SOP-8 PFC (Power Factor Correction) RoHS
Datasheetpdf iconLeadtrend LD7841KGS
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QtyUnit Price(Reference Only)Total Amount
1+$ 0.381$ 0.38
10+$ 0.2962$ 2.96
30+$ 0.2607$ 7.82
100+$ 0.216$ 21.60
500+$ 0.1959$ 97.95
1,000+$ 0.1836$ 183.60
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/PFC (Power Factor Correction)
ManufacturerLeadtrend
PackagingSOP-8
FeaturesSoft-start;Overvoltage protection;Cycle-by-cycle overcurrent protection;Undervoltage Protection;Over temperature protection;Under-voltage lockout
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Introduction

AI Translation

The LD7841K is a voltage mode controller for constant voltage output to LED drivers. Designed to support flyback or buck-boost topologies, its proprietary voltage mode control algorithm provides near−unity power factor and tightly regulates a constant output voltage from the primary side, thus eliminating the need for a secondary side feedback circuitry or an opticalcoupler. The device is highly integrated with a minimum number of external components. A robust suite of safety protection is built in to simplify the design. This device is specifically intended for very compact space efficient designs and also provides a constant voltage regulation of the output if no load is connected to the LED drivers.

Features

AI Translation
  • Wide universal input range (85VAC ~ 305VAC)
  • Fast Startup time: ≤ 0.5 sec
  • Low standby power
    • No load power saving: < 0.3W
    • Standby power consumption: < 0.5W
  • Precise voltage regulation in the steady state: < ± 3%
  • Voltage regulation in the load transient: < ± 15%
  • Total harmonic distortion current (THDi) optimization: < 10%
  • High Power Factor: PF > 0.9
  • Robust Protection Features
    • Brown−In/Out Detection on HV pin
    • Cycle−by−cycle Peak Current Limit on CS pin
    • Over Load Protection on COMP pin
    • Secondary Diode short Protection on CS pin
    • Pin Short/Open Circuit Protection on CS and FB pin
    • Output Short Circuit Protection on FB pin
    • External OTP on CS pin
    • Internal Over Temperature Protection
  • 250 mA / -700 mA Totem Pole Driving capability

Applications

AI Translation
  • LED Driver Power Supplies
  • Offline Appliances Requiring Power Factor Correction