Transition Mode PFC LED Controller
The AL6562A is a current mode Power Factor Correction Controller
and is designed for operating in Transition Mode. With a superior
linear performance multiplier, it ensures the device operates over a
wide input voltage range with superior THD (Total Harmonics
Distortion). The output voltage is controlled by means of an error
amplifier and a precise (1% @ TJ = +25°C) internal voltage reference.
The AL6562A is designed to meet stringent energy-saving standards
with low start-up current, and can operate with low current
consumption when entering stand-by mode.
OVP circuitry increases system robustness, allowing the device to
withstand transient caused at start-up and during load-disconnects.
Single Stage PFC Controller
Transition Mode Operation
Low Start-Up, Operating and Quiescent Currents
Internal Start-Up Timer
Enable/Disable Function on INV Input
Totem Pole, Push-Pull Output Drive
Adjustable Output Overvoltage Protection
SO-8 : Available in “Green” Molding Compound (No Br, Sb)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
COMP 2 AL6562A 7 GD
Electronic Single-Stage LED Driver
PFC pre-regulators for:
IEC61000-3-2 compliant SMPS (Flat TV,
monitors, desktop PC, games)
HI-END AC-DC adapter/charger up to 350W
Entry level server & web server
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free,
"Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
Typical Applications Circuit
L 2 160 H
L 1 C1
500 H 220nF/275V
85 to 265V AC
L N GND
D 1 1M
R 6 180K
R 7 180K
D 2 MUR460
Figure 1 High Power Factor Boost application circuit
Document Number: DS38122 Rev. 1-2
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