Hardware Connection; Connecting The Bq27421 Circuit Module To A Battery Pack; Pc Interface Connection; Bq27421 Circuit Module Connection To Pack And System Load/Charger - Texas Instruments bq27421 User Manual

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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.
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
2. Connect the PC USB cable to the EV2300 or EV2400 and the PC USB port.
The bq27421EVM is now set up for operation.
SLUUA63A – April 2013 – Revised July 2016
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Table 4. Circuit Module to EV2300 or EV2400 Connections
bq27421EVM
SDA
SCL
VSS
Copyright © 2013–2016, Texas Instruments Incorporated
USB
EV2300 or EV2400
EV2300 or EV2400
SDA
SCL
GND/VSS
bq27421 EVM: Single-Cell Impedance Track Technology
Hardware Connection
Battery
Pack
Table 4.
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