V-Tec C5-AT25/D4 Manuel d'utilisateur télécharger pdf (Page 20)

User manual Rev. 1.1 — 15 October 2014 20 of 24

NXP Semiconductors

UM10812

SSL5301DB1233 230 V 36 W LED driver demo board

12. Errata

12.1 Converter does not start when mains protective earth is connected

When the mains protective earth is connected, the converter does not start up. The

present SSL5301DB1233 demo board, the Protective Earth (PE) is not connected so no

start-up issues occur.

When PE is connected, connect the primary ground side of the Y-capacitor to the negative

node of the bridge rectifier (see Figure 11

12.2 EMI performance shows increased peaking at 20 MHz with PE

connected

When the mains Protective Earth (PE) is connected, the EMI performance decreases at

20 MHz. The performance decreasing is not an issue in the present SSL5301DB1233

demo board because PE is not connected.

Fig 11. Alternative connection of Y-capacitor to bridge ground

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V-Tec C5-AT25/D4 Manuel d'utilisateur Page 20