L6562A PDF – Transition-mode PFC controller

The L6562A is a current-mode PFC controller operating in Transition Mode (TM). Coming
with the same pin-out as its predecessors L6561 and L6562, it offers improved performance.
The highly linear multiplier includes a special circuit, able to reduce AC input current
distortion, that allows wide-range-mains operation with an extremely low THD, even over a
large load range. An effective two-step OVP enables to safely handle overvoltages either occurring at start-up or resulting from load disconnection.

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.


L6562A PFC controller

Part number : L6562A, L6562AN, L6562AD, L6562DTR

Function : Transition-mode PFC controller

Package : DIP 8 Pin, SO 8 Pin

Manufacturer : STMicroelectronics



1. Proprietary multiplier design for minimum THD
2. Very accurate adjustable output overvoltage protection
3. Ultra-low (30μA) Start-up current
4. Low (2.5mA) quiescent current
5. Digital leading-edge blanking on current sense
6. Disable function on E/A input
7. 1% (@ TJ = 25 °C) internal reference voltage
8. -600/+800mA totem pole gate driver with active pull-down during UVLO and voltage clamp


L6562A datasheet pinout


PFC pre-regulators for:
1. IEC61000-3-2 compliant SMPS (Flat TV, monitors, desktop PC, games)
2. HI-END AC-DC adapter/charger up to 400W
3. Electronic ballast
4. Entry level server & web server

Official Homepage : https://www.st.com/en/power-management/l6562a.html

L6562A Datasheet PDF


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