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Leadtrend LD7841GSRoHS

Manufacturer
LeadtrendAsian Brands
MPN
LD7841GS
LCSC Part #
C3008465
Packaging
SOP-8
Customer #
Key Attributes
SOP-8 PFC (Power Factor Correction) RoHS
Datasheetpdf iconLeadtrend LD7841GS
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QtyUnit Price(Reference Only)Total Amount
1+$ 0.4071$ 0.41
10+$ 0.322$ 3.22
30+$ 0.2864$ 8.59
100+$ 0.24$ 24.00
500+$ 0.2198$ 109.90
1,000+$ 0.2075$ 207.50
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
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Introduction

AI Translation

The LD7841 is a controller designed for isolated and non-isolated constant-voltage LED drivers. The device supports flyback and buck-boost topologies, and its proprietary voltage-mode control algorithm delivers near-unity power factor with accurate primary-side regulation of constant output voltage, eliminating the need for secondary-side feedback circuits or optocouplers. Highly integrated with minimal external components required, the device incorporates a comprehensive suite of protection features to simplify design. It is particularly suited for space-constrained, high-efficiency designs, and maintains constant output voltage regulation even when the LED driver is operating under no-load conditions.

Features

AI Translation
  • Wide universal input voltage range (85VAC ~ 305 VAC)
  • High-voltage startup: startup time < 0.5 s
  • Low standby power consumption
  • No-load energy saving: < 0.2W
  • Standby power consumption: < 0.4W at 150mW output
  • Accurate CV regulation in steady state: < ±5%
  • CV regulation under load transient: < ±15%
  • Optimized total harmonic current: THDi < 10%
  • High power factor: PF > 0.92
  • Robust protection features
  • Under-voltage/over-voltage detection on HV pin
  • AC over-voltage protection on HV pin
  • Programmable output OVP on feedback pin
  • Cycle-by-cycle peak current limiting on CS pin
  • Overload protection
  • Secondary diode short-circuit protection
  • Pin short/open protection on CS and feedback pins
  • Winding short-circuit protection on feedback pin
  • Output short-circuit protection
  • 250 mA / -700 mA totem-pole drive capability

Applications

AI Translation
  • LED driver power supplies
  • Off-line equipment requiring power factor correction