AN10881
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Application note
Rev. 2 — 26 September 2011
33 of 102
NXP Semiconductors
AN10881
TEA1713 resonant power supply control IC with PFC
6.6 Mutual disturbance of PFC and HBC
The charge and discharge currents for the MOSFET gate of the PFC and HBC are
independently driven in time. Due to these current peaks being high, they can give
disturbance on control and sense signals. As both the PFC controller and the HBC
controller are integrated in the TEA1713, the (large) driver currents of GATEPFC and
GATELS can also give mutual disturbance on the operation of the controllers.
Gate circuits and PCB layout (see
) must be designed to prevent this.
A construction similar to this provided by
helps keeping the (fast and high)
switch-off current local, for a high-power PFC MOSFET.
