參數(shù)資料
型號: MAX1909
廠商: Maxim Integrated Products, Inc.
英文描述: Multichemistry Battery Charger with Automatic System Power Selector
中文描述: 多種化學(xué)類型電池充電器,自動選擇系統(tǒng)電源
文件頁數(shù): 10/29頁
文件大?。?/td> 551K
代理商: MAX1909
M
Multichemistry Battery Charger with Automatic
System Power Selector
10
______________________________________________________________________________________
LDO LOAD REGULATION
M
LDO CURRENT (mA)
L
9
8
7
6
5
4
3
2
1
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0
-1.4
0
10
LINE TRANSIENT RESPONSE
MAX1909 toc03
500
μ
s/div
1.8V
V
CCV
V
AC-COUPLED
200mV/div
INDUCTOR CURRENT
200mA/div
3A
1.6V
20V
30V
V
DCIN
Typical Operating Characteristics (continued)
(Circuit of Figure 2, V
DCIN
= 20V, charge current = 3A, 4 Li+ series cells, T
A
= +25
°
C, unless otherwise noted.)
REF vs. TEMPERATURE
M
TEMPERATURE (
°
C)
R
60
35
10
-15
-0.15
-0.10
-0.05
0
0.05
0.10
-0.20
-40
85
EFFICIENCY vs. CHARGE CURRENT
M
CHARGE CURRENT (A)
E
2.5
2.0
1.5
1.0
0.5
82
84
86
88
90
92
94
96
98
100
80
0
3.0
4 CELLS
3 CELLS
SWITCHING FREQUENCY vs. V
IN
- V
BATT
M
V
IN
- V
BATT
(V)
S
8
6
4
2
50
100
150
200
250
300
350
400
450
500
0
0
10
IINP ERROR vs. INPUT CURRENT
M
INPUT CURRENT (A)
I
3.0
2.5
0.5
1.0
1.5
2.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
0
3.5
CHARGER
DISABLED
LDO LINE REGULATION
M
INPUT VOLTAGE (V)
L
20
10
-0.05
0
0.05
0.10
-0.10
0
30
REF LOAD REGULATION
M
REF CURRENT (
μ
A)
R
800
600
400
200
-0.12
-0.10
-0.08
-0.06
-0.04
-0.02
0
-0.14
0
1000
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