NXP Semiconductors SSL2108X, Руководство пользователя, Страница: 23 / 27

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User manual Rev. 1 — 30 August 2011 23 of 27
NXP Semiconductors
UM10468
SSL2108X buck evaluation board
11. Printed-Circuit Board (PCB) data
11.1 Evaluation board photographs
Remark: The configuration of the SSL21083 is similar to the SSL21081 although BOM is
different. The same is true of the SSL21084 when compared to the SSL21082.
The evaluation board shown in Figure 15 is a large format footprint. Its size enables the
full functionality of the SSL2108X IC family to be highlighted. The measurement pins,
connectors and other components are used to allow any one of the SSL2108X ICs to be
dropped in to place.
Figure 16 shows the SSL21081 reference board which can be used in retrofit lamp
designs. It is clear that the total form factor is reduced using the SSL2108X ICs in a
real-world application. A PCB size reduction and thus an efficiency of more than 92 % can
be reached.
a. Top view: SSL21081 (SO8). b. Top view: SSL21082 (SO12).
c. Bottom view.
Fig 15. SSL21081 and SSL21082 evaluation board photographs
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