參數(shù)資料
型號： MAX864
廠商： Maxim Integrated Products, Inc.
英文描述： Dual-Output Charge Pump with Shutdown
中文描述： 雙輸出電荷泵，帶有關(guān)斷
文件頁數(shù)： 3/12頁
文件大?。?/td> 122K
代理商： MAX864
__________________________________________Typic al Operating Charac teristic s
(V
IN
= 5.0V, capacitor values in Table 1, T
A
= +25°C, unless otherwise noted.)
10
-10
0
5
10
OUTPUT CURRENT (mA)
20
25
40
OUTPUT VOLTAGE
vs. OUTPUT CURRENT
-8
6
8
M
O
15
30
35
-2
4
2
0
-4
-6
V- LOADED
C1–C4 = 1
μ
F
V
IN
= 4.75V
FC1 = 1
FC0 = 1 (185kHz)
V- LOADED
V+ LOADED
V+ LOADED
BOTH V+ AND
V- LOADED EQUALLY
100
0
0
10
5
20
35
FFICIENCY vs. OUTPUT CURRENT
@ 7kHz PUMP FREQUENCY
20
80
V+
V-
V-
90
M
OUTPUT CURRENT (mA)
E
%
)
15
25
30
70
40
60
50
30
10
V
IN
= 5.0V
V
IN
= 3.3V
C1–C4 = 33
μ
F
FC1 = 0, FC0 = 0
V+
0
0
10
5
20
35
EFFICIENCY vs. OUTPUT CURRENT
@ 33kHz PUMP FREQUENCY
20
80
V+
V-
V-
90
M
OUTPUT CURRENT (mA)
E
%
)
15
25
30
70
40
60
50
30
10
V
IN
= 5.0V
V
IN
= 3.3V
V+
C1–C4 = 6.8
μ
F
FC1 = 0, FC0 = 1
0
0
10
5
20
35
EFFICIENCY vs. OUTPUT CURRENT
@ 100kHz PUMP FREQUENCY
20
80
V+
V-
V-
M
OUTPUT CURRENT (mA)
E
%
)
15
25
30
70
40
60
50
30
10
V
IN
= 5.0V
μ
F
FC1 = 0, FC0 = 0
V+
V
IN
= 3.3V
0
0
10
5
20
35
EFFICIENCY vs. OUTPUT CURRENT
@ 185kHz PUMP FREQUENCY
20
80
V+
V-
V-
M
OUTPUT CURRENT (mA)
E
%
)
15
25
30
70
40
60
50
30
10
V
IN
= 5.0V
C1–C4 = 1
μ
F
FC1 = 1, FC0 = 1
V+
V
IN
= 3.3V
160
40
1.0
2.0
4.0
6.0
OUTPUT RESISTANCE
vs. SUPPLY VOLTAGE
60
140
M
SUPPLY VOLTAGE (V)
O
)
3.0
5.0
100
120
80
R
OUT-
FC1 = 1, FC0 = 1
(185kHz @ 5V)
R
OUT+
140
35
-55 -35 -15
45
65
125
OUTPUT RESISTANCE
vs. TEMPERATURE
50
125
M
TEMPERATURE (°C)
O
)
5
25
85 105
80
110
95
65
V-, V
IN
= 3.0V
V-, V
IN
= 4.5V
V+, V
IN
= 3.0V
V+, V
IN
= 4.5V
4.5
0
0
5
10 15
PUMP CAPACITANCE (
μ
F)
30
25
35
50
OUTPUT CURRENT vs. PUMP CAPACITANCE
(V
IN
= 1.9V, V+ +
V-
= 6V)
0.5
3.5
4.0
M
O
20
40 45
2.0
3.0
2.5
1.5
1.0
f = 7kHz
C1 = C2 = C3 = C4
f = 33kHz
f = 185kHz
f = 100kHz
9
0
0
5
10 15
PUMP CAPACITANCE (
μ
F)
30
25
35
50
OUTPUT CURRENT vs. PUMP CAPACITANCE
(V
IN
= 3.15V, V+ +
V-
= 10V)
1
7
8
M
O
20
40 45
4
6
5
3
2
C1 = C2 = C3 = C4
f = 185kHz
f = 7kHz
f = 33kHz
f = 100kHz
M
Dual-Output Charge Pump with S hutdown
_______________________________________________________________________________________
3
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