Texas Instruments BQ24041 Evaluation Module: 1A Single-Input, Single-Cell Li-Ion Battery Charger BQ24041EVM BQ24041EVM Datenbogen
Produktcode
BQ24041EVM
www.ti.com
Test Summary
4.1
Equipment
•
Power supply +5.1 ±0.1 V, current limit set to 1.5 ±0.1 A
•
Battery: 4.2 V LiCoO2 or equivalent
•
Three Fluke 75 DMMs (equivalent or better)
•
Oscilloscope, Model TDS220 (equivalent or better)
4.2
Equipment and EVM Setup
Jack/Component
Connect or Adjustment To:
J1–DC+
Power supply positive, preset to 5 VDC, 1-A current limit.
J1–DC–
Power supply ground
J2–BAT+
Positive Battery Pack Terminal
J2–BAT–
Negative Battery Pack Terminal
JMP1 (bq24040)
Apply shunt for Pre-TERM connection.
JMP2
Apply shunt for PG LED connection.
JMP3
Apply shunt for ISET2 connection.
JMP4
Apply shunt for CHG LED connection.
JMP5
Apply shunt for TS (BAT_EN on bq24041) connection.
JMP6
No shunt
R2 (R
ISET
)
Adjust R2 for 1k between TP2 and GND
R3 (R
PRE-TERM
)
Adjust R3 for 2k between TP4 and GND
R11 ( R
TS
)
Adjust R11 for 10k between TP9 and GND
Figure 1. EVM Setup
3
SLUU377 – September 2009
0.8-A Single-Input, Single-Cell Li-Ion Battery Charger
Copyright © 2009, Texas Instruments Incorporated