L6564H:High voltage start-up transition-mode PFC

The L6564H is a current-mode PFC controller operating in transition mode (TM) which embeds the same features existing in the L6564 with the addition of a high voltage startup source. These functions make the IC especially suitable for applications that must be compliant with energy saving regulations and where the PFC preregulator works as the master stage.

The highly linear multiplier, along with a special correction circuit that reduces crossover distortion of the mains current, allows wide-range-mains operation with an extremely low THD even over a large load range.

The output voltage is controlled by means of a voltage-mode error amplifier and an accurate (1% @TJ= 25 °C) internal voltage reference. The loop stability is optimized by the voltage feedforward function (1/V2 correction), which, in this IC, uses a proprietary technique that also considerably improves line transient response in the case of both mains drops and surges (“bi-directional”).

In addition to overvoltage protection able to control the output voltage during transient conditions, the IC also provides protection against feedback loop failures or erroneous settings. Other onboard protection functions allow brownout conditions and boost inductor saturation to be safely handled.

The totem pole output stage, capable of a 600 mA source and 800 mA sink current, is suitable for a high power MOSFET or IGBT drive. This, combined with the other features and the possibility to operate with ST's proprietary fixed-off-time control, makes the device an excellent solution for SMPS up to 400 W that requires compliance with EN61000-3-2 and JEITA-MITI standards.

Key Features

  • Onboard 700 V startup source
  • Fast “bi-directional” input voltage feedforward (1/V2 correction)
  • Accurate adjustable output overvoltage protection
  • Protection against feedback loop disconnection (latched shutdown)
  • Inductor saturation protection
  • AC brownout detection
  • Low (≤ 100 μA) startup current
  • 6 mA max. operating bias current
  • 1% (@ TJ = 25 °C) internal reference voltage
  • -600/+800 mA totem pole gate driver with active pull-down during UVLO
  • SO-14 package
Product Specifications
DescriptionVersionSize
DS8962: High voltage start-up transition-mode PFC2.01 MB
Application Notes
DescriptionVersionSize
AN4077: 100 W transition-mode PFC pre-regulator with the new L6564H1.01 MB
AN4026: 19 V - 90 W adapter with PFC for laptop computers using the L6563H and L66991.2988 KB
AN4314: 25 W wide-range high power factor buck-boost converter demonstration board using the L6564H2.02 MB
Presentations
DescriptionVersionSize
Power Factor Corrector controllers portfolio1 MB
Brochures
DescriptionVersionSize
Brochure Power management guide05.20164 MB
Solution Evaluation Tools
Part NumberManufacturerDescription
EVL6564H-25W-BB25 W wide-range high power factor buck-boost converter demonstration board using the L6564H
Sample & Buy
Part NumberPackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
L6564HTRSO-14Tape And Reel--NECEAR99CHINA
L6564HSO-14Tube--NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
L6564HTRSO-14IndustrialEcopack2md_k7-wspc-so-wspc-14-wspc-.15-wspc-jedec_bkk7-wspc-mv03aax.pdf
md_k7-wspc-so-wspc-14-wspc-.xml
L6564HSO-14IndustrialEcopack2md_k7-wspc-so-wspc-14-wspc-.15-wspc-jedec_bkk7-wspc-mv03aax.pdf
md_k7-wspc-so-wspc-14-wspc-.xml
High voltage start-up transition-mode PFC L6564H
100 W transition-mode PFC pre-regulator with the new L6564H EVL6564H-100W
19 V - 90 W adapter with PFC for laptop computers using the L6563H and L6699 L6699
25 W wide-range high power factor buck-boost converter demonstration board using the L6564H EVL6564H-25W-BB
EVL4984-350W: 350 W CCM PFC pre-regulator with the L4984D L4984D
Very low drop voltage regulators with inhibit KFXX
md_k7-wspc-so-wspc-14-wspc-.15-wspc-jedec_bkk7-wspc-mv03aax.pdf L6564H
md_k7-wspc-so-wspc-14-wspc-.xml HCF4093