Texas Instruments bq27421 EVM, Руководство пользователя, Страница: 9 / 21

LOAD
CHARGER
EV2300 or EV2400
USB
H
D
Q
I2
C
S
M
B
Battery
Pack
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Hardware Connection
9 SLUUA63A – April 2013 – Revised July 2016
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bq27421 EVM: Single-Cell Impedance Track Technology
6 Hardware Connection
The bq27421 evaluation system comprises three hardware components: the bq27421 circuit module, the
EV2300 or EV2400 PC interface board, and the PC.
6.1 Connecting the bq27421 Circuit Module to a Battery Pack
Figure 7 shows how to connect the bq27421 circuit module to the cells and system load/charger.
Figure 7. bq27421 Circuit Module Connection to Pack and System Load/Charger
6.2 PC Interface Connection
The following steps configure the hardware for interface to the PC.
1. Connect the bq27421-based EVM to the EV2300 or EV2400 using wire leads as shown in Table 4 .
2. Connect the PC USB cable to the EV2300 or EV2400 and the PC USB port.
Table 4. Circuit Module to EV2300 or EV2400 Connections
bq27421EVM EV2300 or EV2400
SDA SDA
SCL SCL
VSS GND/VSS
The bq27421EVM is now set up for operation.