MAX1909ETIT Maxim Integrated Products, Inc., MAX1909ETIT Datasheet - Page 11
MAX1909ETIT
Manufacturer Part Number
MAX1909ETIT
Description
Multichemistry Battery Chargers With Automatic System Power Selector
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX1909ETIT.pdf
(30 pages)
Multichemistry Battery Chargers with Automatic
(Circuit of Figure 2, V
500
450
400
350
300
250
200
150
100
-1
-2
50
-2
-4
-6
-8
4
3
2
1
0
0
8
6
4
2
0
1.5
0
SWITCHING FREQUENCY vs. V
0
IINP ACCURACY vs. INPUT CURRENT
INPUT CURRENT-LIMIT ACCURACY
V
BATT
2.0 2.5
______________________________________________________________________________________
DCIN
0.5
V
BATT
= 16V
2
= 13V
1.0
vs. SYSTEM LOAD
= 20V, charge current = 3A, 4 Li+ series cells, T
INPUT CURRENT (A)
3.0 3.5
SYSTEM LOAD (A)
V
V
IN
BATT
4
1.5
- V
= 12V
BATT
4.0 4.5 5.0 5.5 6.0
2.0
V
BATT
6
(V)
= 10V
2.5
IN
8
3.0
- V
BATT
Typical Operating Characteristics (continued)
3.5
10
System Power Selector
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
A
-1
-2
-1
-2
-3
4
3
2
1
0
0
3
2
1
0
INPUT CURRENT-LIMIT ACCURACY vs. V
= +25°C, unless otherwise noted.)
0.5
1.5
0
V
MAX1909 ONLY
V
BATT
INPUT CURRENT-LIMIT ACCURACY
BATT
IINP ERROR vs. INPUT CURRENT
0.5
= 16V
= 13V
1.0
2.0
V
I
CHARGE
1.0
BATT
vs. SYSTEM LOAD
INPUT CURRENT (A)
SYSTEM LOAD (A)
= 12V
1.5
1.5
= 3A
V
CLS
2.5
DISABLED
CHARGER
(V)
2.0
2.0
V
BATT
2.5
3.0
= 10V
2.5
3.0
3.0
3.5
3.5
CLS
11