BQ2406X Datasheet, PDF (23/31 Pages) Texas Instruments – 1A SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC WITH THERMAL REGULATION

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TYPICAL OPERATING CHARACTERISTICS
Measured using the typical application circuit shown previously.
bq2406x
SLUS689 – JUNE 2006
THERMAL LOOP OPERATION
WITH POWERPAD ATTACHED
7
1.75
VIN
6
1.50
5
1.25
4
1
IBAT
3
0.75
2
VISET
0.50
1
0.25
0
0
0 0.50 1 1.50 2 2.50 3
t - Time - s
Figure 12.
5
4.75
4.50
4.25
4
3.75
3.50
3.25
3
0
PACK REMOVAL TRANSIENT
1
0.8
VBAT
0.6
0.4
IBAT
0.2
0
0.5
1
1.5
2
t - Time - mS
Figure 14.
-0.2
-0.4
2.5
PG DEGLITCH TIME
9
8
7
VIN
6
5
4
3
VPG
2
1
0
0
1
2
3
4
5
t - Time - mS
Figure 16.
THERMAL LOOP AND DTC OPERATION
1.6
12
1.4
Safety Timer
10
1.2
8
1
0.8
6
0.6
IBAT
4
0.4
2
0.2
0
0
0 0.50 1 1.50 2 2.50 3
t - Time - s
Figure 13.
OVP TRANSIENTS
8
2
1.80
7
1.60
6
VIN
1.40
5
1.20
4
1
3
IBAT
0.80
0.60
2
VPG
0.40
1
0.20
0
0
0 5 10 15 20 25 30 35 40 45 50
t - Time - mS
Figure 15.
POWER UP – NO BATTERY
CE = H
9
0.60
8
VBAT
0.50
7
VIN
6
0.40
5
0.30
4
0.20
3
2
0.10
1
VPG
0
0
-1
-0.10
0 0.50 1 1.50 2 2.50 3 3.50 4 4.50 5
t - Time - mS
Figure 17.
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