BQ24750_07 Datasheet, PDF (14/38 Pages) Texas Instruments – Host-controlled Multi-chemistry Battery Charger with Integrated System Power Selector and AC Over-Power Protection

bq24750
SLUS735 – DECEMBER 2006
CHARGE CURRENT REGULATION
vs
BAT VOLTAGE
5
4
3
2
1
Ichrg_set = 4 A
0
0
2
4
6
8
10 12 14 16
18
Battery Voltage - V
Figure 15.
BATTERY REMOVAL
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EFFICIENCY
vs
BATTERY CHARGE CURRENT
100 _{V(BAT) = 16.8 V}
90
V_reg = 12.6 V
V_reg = 8.4 V
80
70
0
2000
4000
6000
8000
Battery Charge Current - mA
Figure 16.
ACDRV AND BATDRV STARTUP
Figure 17.
REF AND REGN STARTUP
Figure 18.
SYSTEM SELECTOR ON ADAPTER INSERTION WITH
390 µF SYS-TO-PGND SYSTEM CAPACITOR
Figure 19.
Figure 20.
14
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