BQ24750_07 Datasheet, PDF (12/38 Pages) Texas Instruments – Host-controlled Multi-chemistry Battery Charger with Integrated System Power Selector and AC Over-Power Protection

bq24750
SLUS735 – DECEMBER 2006
0.50
0.40
0.30
0.20
0.10
0
-0.10
-0.20
0
VREF LOAD AND LINE REGULATION
vs
Load Current
PVCC = 10 V
PVCC = 20 V
10
20
30
40
50
VREF - Load Current - mA
Figure 3.
BAT VOLTAGE
vs
VADJ/VDAC RATIO
18.2
18
17.8
17.6
17.4
VADJ = 0 -VDAC,
4-Cell,
No Load
17.2
17
16.8
16.6
16.4
16.2
16
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
VADJ/VDAC Ratio
Figure 5.
INPUT CURRENT
vs
ACSET/VDAC RATIO
10
ACSET Varied,
9 _4-Cell,
Vbat = 16 V
8
7
6
5
4
3
2
1
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
ACSET/VDAC Ratio
Figure 7.
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REGN LOAD AND LINE REGULATION
vs
LOAD CURRENT
0
-0.50
-1
-1.50
-2
PVCC = 10 V
-2.50
PVCC = 20 V
-3
0
10 20 30 40 50 60 70
80
REGN - Load Current - mA
Figure 4.
CHARGE CURRENT
vs
SRSET/VDAC RATIO
10
9 SRSET Varied,
4-Cell,
8 Vbat = 16 V
7
6
5
4
3
2
1
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
SRSET/VDAC Ratio
Figure 6.
BAT VOLTAGE REGULATION ACCURACY
vs
CHARGE CURRENT
0.2
V_reg = 16.8 V
0.1
0
-0.1
-0.2
0
2000
4000
Charge Current - mA
6000
Figure 8.
8000
12
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