BQ24188_15 Datasheet, PDF (11/52 Pages) Texas Instruments – bq24188 2A, 30V, Host-Controlled Single-Input, Single Cell Switchmode Li-Ion Battery Charger with Power Path Management and USB-OTG Support

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8.7 Typical Characteristics
10
8
6
4
2
0
-2
-4
-6
-8
-10
2.9
100
TA=25ºC
TA=0ºC
TA=85ºC
TA=60ºC
3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5
VBAT (V)
Figure 1. Charge Current vs Battery Voltage
90
80
70
60
50
40
2
16
14
12
10
8
6
4
2
0
-2
0
2.5
3
3.5
4
4.5
VBAT (V)
Figure 3. Efficiency vs Battery Voltage
2
4
6
8 10 12 14 16
Input Voltage - V
Figure 5. Input IQ - No Battery, No System
bq24188
SLUSC44A – DECEMBER 2014 – REVISED MAY 2015
95
90
85
80
75
70
0
0.0
VIN=5V
VIN=7V
VIN=10V
VIN=12V
0.5
1
1.5
2
2.5
3
Load Current (A)
Figure 2. Efficiency vs Output Current
-0.5
-1.0
-1.5
-2.0
TA=25ºC
-2.5
TA=60ºC
TA=0ºC
-3.0
0
0.5
1
1.5
2
IBAT (A)
Figure 4. VBAT Accuracy vs IBAT – 4.2V Setting
700
600
500
400
300
200
Input Current (μA)
100
0
-100
3
5
7
9
11
13
15
Input Voltage (V)
Figure 6. Input IQ with Hi-Z Enabled
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