BQ24751RHDRG4 Datasheet, PDF (13/38 Pages) Texas Instruments – Host-controlled Multi-chemistry Battery Charger

bq24751
www.ti.com............................................................................................................................................... SLUS734D – DECEMBER 2006 – REVISED MARCH 2009
BAT VOLTAGE REGULATION ACCURACY
0.10
0.08 ^{VADJ = 0 -VDAC}
0.06
0.04
4-Cell, no load
0.02
0
-0.02
-0.04
-0.06
-0.08
-0.10
16.5
17
17.5
18
18.5
19
V_(BAT) - Setpoint - V
Figure 9.
INPUT CURRENT REGULATION (DPM) ACCURACY
10
9
ACSET Varied
8
7
6
4-Cell, VBAT = 16 V
5
4
3
2
1
0
-1
-2
0
1
2
3
4
5
6
Input Current Regulation Setpoint - A
Figure 11.
INPUT REGULATION CURRENT (DPM), AND CHARGE
CURRENT
vs
SYSTEM CURRENT
5
V_I = 20 V,
4-Cell,
4 ^Vbat ^{= 16 V}
Input Current
3
System Current
2
Charge Current
1
0
0
1
2
3
4
System Current - A
Figure 13.
CHARGE CURRENT REGULATION ACCURACY
2
1
4-Cell, VBAT = 16 V
SRSET Varied
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
0
2
4
6
8
I_(CHRG) - Setpoint - A
Figure 10.
V_IADAPT INPUT CURRENT SENSE AMPLIFIER ACCURACY
5
0
-5
-10
V_I = 20 V, CHG = DIS
V_I = 20 V, CHG = EN
-15
-20
Iadapt Amplifier Gain
-25
0
12
3
4
5
6
7
I_(ACPWR) - A
8
9 10
Figure 12.
TRANSIENT SYSTEM LOAD (DPM) RESPONSE
Figure 14.
Copyright © 2006–2009, Texas Instruments Incorporated
Product Folder Link(s) :bq24751
Submit Documentation Feedback
13