Schematic and Bill of Materials
7.6
Three-Cell Operation
The procedure for three-cell operation with the simulation circuit is as follows:
1. Ensure that all switches on S4 are open.
2. Wire the four-cell tap wires to positions 4 through 7 on the mating plug of CN6.
3. Apply jumper wire from pin 1 to pin 2 on plug for CN6. These are inputs marked Cell 6 and Cell 5.
4. Apply jumper wire from pin 2 to pin 3 on plug for CN6. These are inputs marked Cell 5 and Cell 4.
5. Apply jumper wire from pin 3 to pin 4 on plug for CN6. These are inputs marked Cell 4 and Cell 3.
6. Connect BATT
–
.
7. Connect BATT+
8. Connect CN6 to the EVM. The cell inputs can be connected in any order.
9. Connect to the Evaluation Software.
10. Change the Select Cell Count drop-down box on the home screen to 4.
7.7
Battery Removal Sequence
The removal of the battery from the bq76925EVM requires a certain sequence for safe operation.
The connection removal sequence is:
1. Remove USB-TO-GPIO connector at CN8.
2. Unplug CN6 (CELLS).
3. Remove BATT+ connection.
4. Remove BATT
–
connection.
8
Schematic and Bill of Materials
This section includes the schematic and the bill of materials for the bq76925EVM.
34
bq76925EVM Evaluation Module
SLUU514
–
July 2011
Copyright
©
2011, Texas Instruments Incorporated
