BQ25060_1 Datasheet, PDF (8/24 Pages) Texas Instruments – 1A, Single-Input, Single Cell Li-Ion Battery Charger with 50-mA LDO, and External Power Path Control

bq25060
SLUSA32 – MAY 2010
www.ti.com
TYPICAL CHARACTERISTICS
Using circuit in Figure 1, T_A = 25°C, unless otherwise specified
ADAPTER INSERTION
ENABLE USING EN
VIN = 0 V - 5 V, VBAT = 3.3 V, I_CHG = 280 mA
EN
2 V/div
VIN = 5 V, VBAT = 3 V, I_CHG = 280 mA
VIN
5 V/div
BGATE
2 V/div
LDO
2 V/div
I_CHG
0.5 A/div
10 ms/div
Figure 3.
CHG
2 V/div
BGATE
2 V/div
IIN
100 mA/div
20 ms/div
Figure 4.
DISABLE USING EN
INPUT OVP
EN
2 V/div
LDO
2 V/div
BGATE
2 V/div
IIN
200 mA/div
VIN = 5 V, VBAT = 3.4 V, I_CHG = 280 mA
1 ms/div
Figure 5.
VIN
10 V/div
VBAT
2V/div
LDO
2 V/div
IBAT
0.5 A/div
VIN = 5 V to 29 V, VBAT = 3.8 V
50 µs/div
Figure 6.
PRE-CHARGE MODE TO MINIMUM OUTPUT REGULATION
MODE
VIN = 5 V, VBAT = 1.8 V to 3.45 V, ICHG = 467 mA
VBAT
500 V/div
MINIMUM OUTPUT REGULATION MODE TO CONSTANT
CURRENT (CC) MODE
VBAT
500 V/div
VIN = 5 V, VBAT = 2.4 V to 3.6 V, ICHG = 467 mA
BGATE
2 V/div
IBAT
500 mA/div
20 ms/div
Figure 7.
BGATE
2 V/div
IBAT
500 mA/div
20 ms/div
Figure 8.
8
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