9
Minimizing EM emissions
This evaluation board has been designed to reach a fair compromise between efficiency performance and EM
emissions compliance. Furthermore, this evaluation board can fulfill the class V of the CISPR25 in conducted
emissions from 150 kHz to 108 MHz.
Nevertheless, if the minimum EM emission is required, the following actions should be considered:
1.
Choose a higher value for the capacitor C25 (for example 2.7 nF or 3.3 nF)
2.
Include the whole EMI filter by removing bridges from the jumpers X1, X14 and X16
3.
Replace the 10 Ω resistor R8 with a higher value such as 22 Ω or 33 Ω
4.
With a short piece of wire connect the CHASSIS TERMINAL to the test ground plane as close as possible
to where the board is placed
Voltage mode SEPIC evaluation kit
TLD5099EP
9 Minimizing EM emissions
User guide
13
Rev.2.00
2022-02-04
