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Hardware Connection
7.1
Connecting the bq20z60/bq29330/bq29412 Circuit Module to a Battery Pack
Figure 7
shows how to connect the bq20z60/bq29330/bq29412 circuit module to the cells and system
load/charger.
The cells must be connected in the following order:
1. 4-Cell Pack: 1N (BAT-), 1P, 2P, 3P, and 4P (see
2. 3-Cell Pack: 1N (BAT-), 1P, 2P, and then connect 4P and 3P together.
3. 2-Cell Pack: 1N (BAT-), 1P, and then connect 4P, 3P, and 2P together
To start charge or discharge test, connect SYS PRES pin to PACK- pin to set SYS PRES state. To test
sleep mode, disconnect the SYS PRES pin.
Figure 7. bq20z60bq29330 Circuit Module Connection to Cells and System Load/Charger
7.2
PC Interface Connection
The following steps configure the hardware for interface to the PC:
1. Connect the bq20z60/bq29330-based smart battery to the EV2300 using wire leads as shown in
Table
4.
bq20z60/bq29330-Based Battery
2. Connect the PC USB cable to the EV2300 and the PC USB port.
The bq20z60EVM-001 is now set up for operation.
10
bq20z60EVM-001 SBS 1.1 Impedance Track™ Technology
Enabled Battery Management Solution Evaluation Module
Table 4. Circuit Module to EV2300 Connections
SMBD
SMBC
VSS
Section 2.1
for definitions).
EV2300
SMBD
SMBC
GND
www.ti.com
SLUU354 – June 2009
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