MAX1909ETIT Maxim Integrated Products, Inc., MAX1909ETIT Datasheet - Page 10
![no-image](/images/no-image-200.jpg)
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)
- Current page: 10 of 30
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Multichemistry Battery Chargers with Automatic
System Power Selector
10
(Circuit of Figure 2, V
______________________________________________________________________________________
-0.05
-0.10
-0.05
-0.10
-0.15
-0.20
0.10
0.05
0.10
0.05
0
0
-40
0
DCIN
LINE-TRANSIENT RESPONSE
-15
REF vs. TEMPERATURE
LDO LINE REGULATION
= 20V, charge current = 3A, 4 Li+ series cells, T
INPUT VOLTAGE (V)
TEMPERATURE (°C)
10
10
500µs/div
35
20
MAX1909/MAX8725 toc03
60
Typical Operating Characteristics (continued)
30
85
30V
20V
INDUCTOR CURRENT
200mA/div
3A
V
200mV/div
1.8V
1.6V
BATT
V
V
DCIN
CCV
AC-COUPLED
-0.02
-0.04
-0.06
-0.08
-0.10
-0.12
-0.14
A
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
100
98
96
94
92
90
88
86
84
82
80
= +25°C, unless otherwise noted.)
0
0
0
0
0
4 CELLS
EFFICIENCY vs. CHARGE CURRENT
1
0.5
200
2
REF LOAD REGULATION
LDO LOAD REGULATION
CHARGE CURRENT (A)
3
LDO CURRENT (mA)
REF CURRENT (µA)
3 CELLS
1.0
400
4
1.5
5
600
6
2.0
7
800
8
2.5
9
1000
3.0
10
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