SLUUC53A
October 2020 – March 2021
BQ25300
,
BQ25302
,
BQ25303J
Trademarks
1
Introduction
1.1
EVM Features
1.2
I/O Descriptions
2
Test Setup and Results
2.1
Equipment
2.2
Equipment Setup
2.3
Test Procedure
2.3.1
Initial Settings
2.3.2
Precharge Mode Verification
2.3.3
Fast Charge Mode Verification
2.3.4
Battery Temperature Monitoring Verification
2.3.5
Evaluation Results
2.3.6
Helpful Tips
3
PCB Layout Guideline
4
Board Layout, Schematic, and Bill of Materials
4.1
Board Layout
4.2
Schematic
4.3
Bill of Materials
5
Revision History
2.2
Equipment Setup
Review EVM connections in
Table 1-2
.
Set PS1 for 5-V DC, 2-A current limit and then turn off the supply.
Set PS2 for 3-V DC, 2-A current limit and then turn off the supply.
Connect the output of PS1 to J2 (VBUS and PGND) as shown in
Figure 2-1
.
Connect a voltage meter across TP4 (VBUS) and TP9 (PGND), or across J2.
Turn on Load #1 as shown in
Figure 2-1
, set to constant voltage mode, and output to 2.5 V. Disable Load.
Connect one voltage meter across TP5 (BAT) and TP11 (PGND) or across J1-3 and J1-1 as shown in
Figure 2-1
.
Connect one voltage meter across TP2 (PMID) and TP10 (PGND).
Connect the output of PS2 to TP7 (TS) and TP12 (PGND) as shown in
Figure 2-1
.
Install shunts as shown in
Table 1-3
.
Figure 2-1
Original Test Setup for BMS005
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