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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)： | 8/12頁 |
| 文件大?。?/td> | 122K |
| 代理商： | MAX864 |
M
Dual-Output Charge Pump with S hutdown
8
_______________________________________________________________________________________
__________Applic ations Information
Positive and Negative Converter
The most common application of the MAX864 is as a
dual charge-pump voltage converter that provides pos-
itive and negative outputs of two times a positive input
voltage for biasing analog circuitry (Figure 3). Select a
charge-pump frequency high enough so it does not
interfere with other circuitry, but low enough to maintain
low supply current. See Table 1 for the correct device
configuration.
Paralleling Devic es
Paralleling multiple MAX864s reduces the output resis-
tance of both the positive and negative converters
(Figure 4). The effective output resistance is the output
resistance of one device divided by the total number of
devices. Separate C1 and C2 charge-pump capacitors
are required for each MAX864, but the reservoir capac-
itors C3 and C4 can be shared.
MAX864
C1+
1
2
3
4
5
6
7
8
C1-
16
15
14
13
12
11
10
9
C2
IN
SEE TABLE 1
C1
C3
C4
V
IN
(+1.75V TO+6.0V)
C2+
C2-
GND
V-
SHDN
FC0
FC1
+2 x V
IN
-2 x V
IN
V+
N.C.
N.C.
IN
GND
N.C.
N.C.
Figure 3. Positive and Negative Converter
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8640EVKIT | 制造商:Maxim Integrated Products 功能描述:500MA 4MHZ/2MHZ SYNCHRONOUS STEP-D - Rail/Tube |
| MAX8640EVKIT+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Evaluation Kit for Max8640 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX8640YELT12+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8640YELT12+T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 500mA 4/2MHz Synch Step-Down DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX8640YELT13+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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