MAX1535 Maxim Integrated Products, MAX1535 Datasheet - Page 11

• Manufacturer Part Number: MAX1535
• Description: Highly Integrated Level 2 Smbus Battery Charger
• Manufacturer: Maxim Integrated Products

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(Circuit of Figure 1, V
-2.5
-5.0
100
5.0
2.5
90
80
70
60
50
40
0
0
0
EFFICIENCY vs. CHARGE CURRENT
CHARGE-CURRENT ACCURACY
(CONSTANT-CURRENT MODE)
CHARGECURRENT() SETTING (A)
2
2
CHARGE CURRENT (A)
V
V
V
CHARGE
CHARGE
CHARGE
10
8
6
4
2
0
______________________________________________________________________________________
DCIN
0
MAXIMUM CHARGE VOLTAGE vs. IMAX
= 8.4V
= 12.6V
= 16.8V
4
4
= 20V, T
SLOPE ≈ 5V/V
1
IMAX VOLTAGE (V)
6
6
2
A
= +25°C, unless otherwise noted.)
8
8
3
Highly Integrated Level 2 SMBus
4
-2.5
-5.0
-7.5
Typical Operating Characteristics (continued)
600
500
400
300
200
100
2.5
0
0
0
0
5
INPUT-CURRENT ACCURACY
FREQUENCY vs. V
2
INPUTCURRENT() SETTING (A)
4
4
V
IN
8
- V
6
BATT
12
(V)
IN
8
- V
BATT
16
10
20
16
12
8
4
0
MAXIMUM CHARGE CURRENT vs. VMAX
0
12
20
Battery Charger
1
SLOPE ≈ 5A/V
VMAX VOLTAGE (V)
-0.5
-1.0
1.0
0.5
0
8
6
4
2
0
2
4
0
CHARGECURRENT() = 4A
INPUTCURRENT() = 6A
CHARGE-VOLTAGE ACCURACY
vs. SYSTEM LOAD CURRENT
3
INPUT/CHARGE CURRENT
CHARGEVOLTAGE() CODE (V)
SYSTEM LOAD CURRENT (A)
CHARGE CURRENT
8
2
4
INPUT CURRENT
12
4
5
16
6
20
11
8