The BQ76922EVM circuit module is a 3.0-inch × 4.9-inch 4-layer circuit card assembly. It is designed for easy assembly with cell connections on the left edge to a terminal block. Pack terminals are on the top edge using a terminal block. Wide trace areas are used reducing voltage drops on the high current paths. Optional connections for hardware feature pins are on a separate terminal block on the top edge of the board. An on-board interface adapter with USB connector is located in the right lower corner. Configuration headers are toward the right side of the board. Pushbutton switches for wake up and reset of the BQ76922 are located near the bottom edge of the board. The EVM layout and construction allows easy understanding of the connections and access to the test points for evaluation, but the connector area and programming features result in a large board.

The board layout includes spark gaps with the reference designator prefix E. These spark gaps are fabricated with the board and no component is installed.

See additional information in the configuration and operation sections of this document. Figure 6-1 to Figure 6-8 show the board layout.

Figure 6-1 Top Silk Screen

Figure 6-2 Top Assembly

Figure 6-3 Top Layer

Figure 6-4 Layer 2

Figure 6-5 Layer 3

Figure 6-6 Bottom Layer

Figure 6-7 Bottom Silk Screen

Figure 6-8 Bottom Assembly