BQ24187 Datasheet, PDF (10/44 Pages) Texas Instruments – 1A USB-OTG Support

bq24187
SLUSBM0 – APRIL 2014
7.8 Typical Characteristics
Not Recommended for New Designs
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10
8
6
4
2
0
-2
-4
TA=25ºC
TA=0ºC
-6
TA=85ºC
-8
TA=60ºC
-10
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3
4.5
VBAT (V)
VIN = 5 V
ICHG = 1.2 A
Figure 1. Current Charge vs Battery Voltage
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
0
TA=25ºC
TA=60ºC
TA=0ºC
0.5
1
1.5
2
IBAT (A)
Figure 3. VBAT Accuracy vs IBAT – 4.2 V Setting
100
90
80
70
60
50
40
2
16
14
2.5
ICHG = 2 A
VIN = 5 V
3
3.5
4
4.5
VBAT (V)
VREG = 4.44 V
T_A = 25°C
Figure 2. Efficiency vs Batter`y Charge
12
10
8
6
4
2
0
-2
0
2
4
6
8 10 12 14 16
Input Voltage - V
T_A = 25°C
Figure 4. Input IQ - No Battery, No System
10
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