AN10881
TEA1713 resonant power supply control IC with PFC
Rev. 2 — 26 September 2011
Application note
Document information
Info
Content
Keywords
TEA1713, adapter, LCD TV, Plasma TV, resonant, converter, PFC,
Burst mode
Abstract
The TEA1713 integrates a controller for Power Factor Correction (PFC)
and a controller for a half-bridge resonant converter (HBC).
It provides the drive function for the discrete MOSFET for the up-converter
and for the two discrete power MOSFETs in a resonant half-bridge
configuration.
The resonant controller part is a high-voltage controller for a zero voltage
switching LLC resonant converter. The resonant controller part of the IC
includes a high-voltage level shift circuit and several protection features
such as overcurrent protection, open-loop protection, Capacitive mode
protection and a general purpose latched protection input.
In addition to the resonant controller, the TEA1713 also contains a Power
Factor Correction (PFC) controller. The efficient operation of the PFC is
obtained by functions such as quasi-resonant operation at high power
levels and quasi-resonant operation with valley skipping at lower power
levels. Overcurrent protection, overvoltage protection and
demagnetization sensing, ensures safe operation in all conditions.
The proprietary high-voltage BCD Powerlogic process makes direct
start-up possible from the rectified universal mains voltage in an efficient
way. A second low voltage Silicon-On-Insulator (SOI) IC is used for
accurate, high speed protection functions and control.
The combination of PFC and a resonant controller in one IC makes the
TEA1713 suitable for power supplies in LCD TV, plasma televisions, PC
power supplies, high-power office equipment and adapters.
This application note discusses the TEA1713 functions for applications.
