BQ25060_1 Datasheet, PDF (9/24 Pages) Texas Instruments – 1A, Single-Input, Single Cell Li-Ion Battery Charger with 50-mA LDO, and External Power Path Control

bq25060
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Using circuit in Figure 1, T_A = 25°C, unless otherwise specified
PRE-CHARGE TO CONSTANT VOLTAGE (CV) MODE
VIN-DPM
VBAT
500 mV/div
VIN
2 V/div
SLUSA32 – MAY 2010
BGATE
2 V/div
IBAT
500 mA/div
IIN
1 A/div
BGATE
1 V/div
VOUT
2 V/div
IOUT
2 A/div
4.24
4.23
4.22
4.21
VIN = 5 V, VBAT = 2.8 V to 4.18 V, ICHG = 467 mA
20 ms/div
Figure 9.
SUPPLEMENT MODE
VIN = 5 V, VBAT = 3.2 V,
ICHG = 935 mA, IOUT = 0 A to 2 A
100 µs/div
Figure 11.
BATTERY VOLTAGE
vs
CHARGE CURRENT
CV Mode
IIN
500 mA/div
BGATE
2 V/div
VOUT
2 V/div
VBAT
2 V/div
IIN
100 mA/div
VIN = 5 V with current limit of 600 mA,
VBAT = 3.2 V, ICHG = 93 mA to 935 mA
200 µs/div
Figure 10.
CHARGE CYCLE DEMO
VIN = 5 V, ICHG = 280 mA,
BGATE =Enabled, CBAT = 2000 µF,
No battery connected
BGATE
2 V/div
1.20
1.00
20 ms/div
Figure 12.
R_DSON (From IN to OUT)
vs
JUNCTION TEMPERATURE
I_load = 500 mA
0.80
4.20
4.19
4.18
4.17
4.16
0
200
400
600
800
I_CHRG - Charge Current - mA
Figure 13.
1000
0.60
0.40
0.20
0.00
-50
0
50
100
150
T_J - Junction Temperature - °C
Figure 14.
Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): bq25060
Submit Documentation Feedback
9