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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)： | 5/12頁 |
| 文件大?。?/td> | 122K |
| 代理商： | MAX864 |
M
Dual-Output Charge Pump with S hutdown
_______________________________________________________________________________________
5
____________________________Typic al Operating Charac teristic s (c ontinued)
(V
IN
= 5.0V, capacitor values in Table 1, T
A
= +25°C, unless otherwise noted.)
TIME TOEXIT SHUTDOWN
+5V
0V
+10V
0V
-10V
M
1ms/div
FC0 = FC1 = IN (185kHz), C1–C4 = 1
μ
F
FC0 = FC1 = GND (7kHz), C1–C4 = 33
μ
F
_____________________Pin Desc ription
No Connect—no internal connection.
Connect these to ground to improve
thermal dissipation.
N.C.
9, 10,
13, 14
Positive Power-Supply Input
IN
12
Output of the Boost Charge Pump
V+
15
Positive Terminal of the Flying Boost
Capacitor
C1+
16
Output of the Inverting Charge Pump
V-
5
Active-Low Shutdown Input. With
SHDN
low, the part is in shutdown
mode and its supply current is less
than 1μA. In shutdown mode, V+
connects to IN through a 22
switch,
and V- connects to GND through a
6
switch.
SHDN
6
Frequency Select, MSB (see Table 1)
FC1
7
Frequency Select, LSB (see Table 1)
FC0
8
Negative Terminal of the Flying
Inverting Capacitor
C2-
4
Ground (connect pins 3 and 11 together)
GND
3, 11
PIN
Positive Terminal of the Flying
Inverting Capacitor
C2+
2
Negative Terminal of the Flying Boost
Capacitor
C1-
1
FUNCTION
NAME
MAX864
C1+
1
2
3
4
5
6
7
8
C1-
16
15
14
13
12
11
10
9
C2
+5V
C1
C3
C4
V
CC
IN
C2+
C2-
GND
V-
SHDN
FC0
FC1
V+ OUT
V- OUT
SEE TABLE 1 FOR CAPACITOR VALUES.
R
L-
R
L+
I
L+
V+
N.C.
N.C.
IN
GND
N.C.
N.C.
I
L-
Figure 1. Test Circuit
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