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參數(shù)資料
| 型號： | MAX861 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters(50mA,高達(dá)250KHz的振蕩頻率,電荷泵電壓轉(zhuǎn)換器) |
| 中文描述： | 50mA、頻率可選的開關(guān)電容電壓變換器 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 116K |
| 代理商： | MAX861 |
M
50mA, Frequenc y-S elec table,
S witc hed-Capac itor Voltage Converters
8
_______________________________________________________________________________________
Compatibility with
MAX 660/MAX 665/ICL7660
The MAX860/MAX861 can be used in sockets
designed for the MAX660, MAX665, and ICL7660 with
a minimum of one wiring change. This section gives
advice on installing a MAX860/MAX861 into a socket
designed for one of the earlier devices.
The MAX660, MAX665, and ICL7660 have an OSC pin
mal operation is with OSC floating (although OSC can
DD
to enable the MAX860/MAX861
be jumpered to V
MAX861 floating.
The MAX860/MAX861 operate with FC either floating or
connected to V
DD
, OUT, or GND; each connection
defines the oscillator frequency. Thus, any of the nor-
mal MAX660, MAX665, or ICL7660 connections to pin 1
will work with the MAX860/MAX861, without modifica-
tions. Changes to the FC connection are only required
if you want to adjust the operating frequency.
MAX860
MAX861
“n”
MAX860
MAX861
“1”
8
7
5
V
OUT
C2
8
7
+V
IN
C1
C1
2
2
3
3
4
4
5
V
OUT
= -V
IN
OUT
= R
OUT
OF SINGLE DEVICE
R
…
…
Figure 2. Paralleling MAX860s or MAX861s to Reduce Output
Resistance
MAX860
MAX861
8
7
5
V
OUT
= (2V
IN
) -
(V
FD1
) - (V
FD2
)
C2
+V
IN
C1
2
3
4
V
OUT
= -V
IN
C4
D1
D1, D2 = 1N4148
C3
D2
Figure 3. Combined Doubler and Inverter
MAX860
MAX861
“n”
MAX860
MAX861
“1”
8
7
5
V
OUT
C2
8
7
+V
IN
C1
C2
C1
2
2
3
3
4
4
5
V
OUT
= -nV
IN
…
…
Figure 1. Cascading MAX860s or MAX861s to Increase
Output Voltage
PART
NUMBER
OUTPUT
CURRENT
(mA)
OUTPUT
RESISTANCE
(
)
SWITCHING
FREQUENCY
(kHz)
MAX660
100
6.5
5/40
MAX665
100
6.5
5/40
MAX860
50
12
6/50/130
MAX861
50
12
13/100/250
ICL7660
10
55
5
Table 5. Product Selection Guide
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| MAX863 | Dual, High-Efficiency, PFM, Step-Up DC-DC Controller(雙輸出,高效,PFM,步升DC-DC變換器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8610ETD+ | 制造商:Maxim Integrated Products 功能描述: |
| MAX8610ETM+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
| MAX8611ETM+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
| MAX8611ETM+TW | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8611VETM+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
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