BQ24700 Datasheet, PDF (27/29 Pages) Texas Instruments – NOTEBOOK PC BATTERY CHARGE CONTROLLER AND SELECTOR WITH DPM

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bq24700, bq24701
NOTEBOOK PC BATTERY CHARGE CONTROLLER
AND SELECTOR WITH DPM
SLUS452B – APRIL 2001 – REVISED NOVEMBER 2002
TYPICAL CHARACTERISTICS
BATTERY CURRENT SET ACCURACY
vs
BATTERY CURRENT SET VOLTAGE
25
SRSET Full Scale = 2.5 V
= Max Programmed Current
20
TJ = 25°C
AC CURRENT SET ACCURACY
vs
AC CURRENT SET VOLTAGE
25
ACSET Full Scale = 2.5 V
= Max Programmed Current
20
TJ = 25°C
15
15
10
10
5
5
0
0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50
VSRSET – Battery Current Set Voltage – V
Figure 16
BATTERY I_BAT READBACK
vs
(SRP–SRN) VOLTAGE
25
TJ = 25°C
20
15
10
5
0
25
50
75
100
(SRP–SRN) – Battery Current Sense Voltage – mV
Figure 18
0
0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50
VACSET – AC Current Set Voltage – V
Figure 17
HALF SUPPLY REGULATOR VOLTAGE
vs
INPUT VOLTAGE
15.0
12.5
10.0
7.5
5.0
2.5
0
6
10
14
18
22 26
30
VCC – Input Voltage – V
Figure 19
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