MAX1535A 查看數據表（PDF） - Maxim Integrated
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MAX1535A Datasheet PDF : 39 Pages
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Highly Integrated Level 2 SMBus
Battery Charger
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VDCIN = 20V, TA = +25°C, unless otherwise noted.)
EFFICIENCY vs. CHARGE CURRENT
(CONSTANT-CURRENT MODE)
100
90
80
VCHARGE = 8.4V
70
VCHARGE = 12.6V
VCHARGE = 16.8V
60
50
40
0
2
4
6
8
CHARGE CURRENT (A)
CHARGE-CURRENT ACCURACY
5.0
2.5
0
FREQUENCY vs. VIN - VBATT
600
500
400
300
200
100
0
0
4
8
12
16
20
VIN - VBATT (V)
INPUT-CURRENT ACCURACY
2.5
0
-2.5
CHARGE-VOLTAGE ACCURACY
1.0
0.5
0
-0.5
-1.0
4
8
12
16
20
CHARGEVOLTAGE() CODE (V)
INPUT/CHARGE CURRENT
vs. SYSTEM LOAD CURRENT
8
CHARGECURRENT() = 4A
INPUTCURRENT() = 6A
6
INPUT CURRENT
4
-2.5
-5.0
2
-5.0
0
2
4
6
8
CHARGECURRENT() SETTING (A)
-7.5
0
2 4 6 8 10 12
INPUTCURRENT() SETTING (A)
CHARGE CURRENT
0
0
2
4
6
8
SYSTEM LOAD CURRENT (A)
MAXIMUM CHARGE VOLTAGE vs. IMAX
10
MAXIMUM CHARGE CURRENT vs. VMAX
20
8
16
6
12
4
SLOPE ≈ 5V/V
2
8
SLOPE ≈ 5A/V
4
0
0
1
2
3
4
5
IMAX VOLTAGE (V)
0
0
1
2
3
4
5
VMAX VOLTAGE (V)
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