L6563:Advanced transition-mode PFC controller

The device is a current-mode PFC controller operating in Transition Mode (TM). Based on the core of a standard TM PFC controller, it offers improved performance and additional functions.

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 a precise (1.5% @TJ = 25°C) internal voltage reference. The stability of the loop and the transient response to sudden mains voltage changes are improved by the voltage feedforward function (1/V2 correction).

Additionally, the IC provides the option for tracking boost operation (where the output voltage is changed tracking the mains voltage). The device features extremely low consumption (≤ 90 µA before start-up and ≤ 5 mA running).

In addition to an effective two-step OVP that handles normal operation overvoltages, the IC provides also a protection against feedback loop failures or erroneous output voltage setting.

In the L6563 a protection is added to stop the PFC stage in case the boost inductor saturates. This function is not included in the L6563A. This is the only difference between the two part numbers.

An interface with the PWM controller of the DC-DC converter supplied by the PFC preregulator is provided: the purpose is to stop the operation of the converter in case of anomalous conditions for the PFC stage (feedback loop failure, boost inductor's core saturation) in the L6563 only and to disable the PFC stage in case of light load for the DC-DC converter, so as to make it easier to comply with energy saving norms (Blue Angel, EnergyStar, Energy2000, etc.). The device includes disable functions suitable for remote ON/OFF control both in systems where the PFC pre-regulator works as a master and in those where it works as a slave.

The totem-pole output stage, capable of 600 mA source and 800 mA sink current, is suitable to drive high current MOSFETs or IGBTs. This, combined with the other features and the possibility to operate with the proprietary Fixed-Off-Time control, makes the device an excellent low-cost solution for EN61000-3-2 compliant SMPS in excess of 350W.

Key Features

  • -600/+800 mA totem pole gate driver with active pull-down during UVLO
  • 1.5% (@ Tj = 25˚C) internal reference voltage
  • SO14 package
  • Low (≤90μA) start-up current
  • Remote on/off control
  • Very precise adjustable output overvoltage protection
  • Protection against feedback loop failure (Latched shutdown)
  • Tracking boost function
  • Input voltage feedforward (1/V2 )
  • 5mA max. quiescent current
  • Interface for cascaded conver-ter's PWM controller
Product Specifications
DescriptionVersionSize
DS4109: Advanced transition-mode PFC controller4.2687 KB
Application Notes
DescriptionVersionSize
AN2690: 19 V - 75 W adapter with pre-regulator PFC using the L6563 and the L6566A1.11 MB
AN4026: 19 V - 90 W adapter with PFC for laptop computers using the L6563H and L66991.2988 KB
AN2485: 400 W FOT-controlled PFC pre-regulator with the L65631.2730 KB
AN2852: EVL6591-90WADP: 90 W AC-DC asymmetrical half-bridge adapter using L6591 and L65631.11 MB
Presentations
DescriptionVersionSize
Power Factor Corrector controllers portfolio1 MB
Brochures
DescriptionVersionSize
Brochure Power management guide05.20164 MB
Solution Evaluation Tools
Part NumberManufacturerDescription
EVL6566A-75WES419 V - 75 W SMPS compliant with latest Energy Star criteria using the L6563 and the L6566A
STEVAL-ISA149V119 V - 75 W SMPS compliant with latest Energy Star criteria using the L6563 and the L6566A
Sample & Buy
Part NumberPackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
L6563SO-14Tube--NECEAR99CHINA
L6563TRSO-14Tape And Reel--NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
L6563SO-14IndustrialEcopack2 (**)md_k7-wspc-so-wspc-14-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_c5k7-wspc-ue29ad6.pdf
md_k7-wspc-so-wspc-14-wspc-.xml
L6563TRSO-14IndustrialEcopack2 (**)md_k7-wspc-so-wspc-14-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_c5k7-wspc-ue29ad6.pdf
md_k7-wspc-so-wspc-14-wspc-.xml
Advanced transition-mode PFC controller L6563
circuit_diagram_10967_thumbnail.png L6563
19 V - 75 W adapter with pre-regulator PFC using the L6563 and the L6566A EVL6566A-75WADP
19 V - 90 W adapter with PFC for laptop computers using the L6563H and L6699 L6699
400 W FOT-controlled PFC pre-regulator with the L6563 L6563
EVL6591-90WADP: 90 W AC-DC asymmetrical half-bridge adapter using L6591 and L6563 EVL6591-90WADP
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-to-wspc-jedec-wspc-ms-012_c5k7-wspc-ue29ad6.pdf L6563
md_k7-wspc-so-wspc-14-wspc-.xml HCF4093