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參數資料
| 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，帶有關斷 |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 122K |
| 代理商： | MAX864 |
_______________General Desc ription
The MAX864 CMOS, charge-pump, DC-DC voltage
converter produces a positive and a negative output
from a single positive input, and requires only four
capacitors. The charge pump first doubles the input
voltage, then inverts the doubled voltage. The input
voltage ranges from +1.75V to +6.0V.
The internal oscillator can be pin-programmed from
7kHz to 185kHz, allowing the quiescent current, capac-
itor size, and switching frequency to be optimized. The
55
output impedance permits useful output currents
up to 20mA. The MAX864 also has a 1μA logic-con-
trolled shutdown.
The MAX864 comes in a 16-pin QSOP package that
uses the same board area as a standard 8-pin SOIC.
For more space-sensitive applications, the MAX865 is
available in an 8-pin μMAX package, which uses half
the board area of the MAX864.
________________________Applic ations
Low-Voltage GaAsFET Bias in Wireless Handsets
VCO and GaAsFET Supply
Split Supply from 2 to 4 Ni Cells or 1 Li+ Cell
Low-Cost Split Supply for Low-Voltage
Data-Acquisition Systems
Split Supply for Analog Circuitry
LCD Panels
____________________________Features
o
Requires Only Four Capacitors
o
Dual Outputs (Positive and Negative)
o
Low Input Voltages: +1.75V to +6.0V
o
1μA Logic-Controlled Shutdown
o
Selectable Frequencies Allow Optimization
of Capacitor Size and Supply Current
M
Dual-Output Charge Pump with S hutdown
________________________________________________________________ Maxim Integrated Products
1
MAX864
C1+
IN
V+
V-
SHDN
FC1
GND
FC0
C1-
C2+
V
IN
V
IN
V
IN
C2-
+2V
IN
V
IN
(+1.75V TO+6.0V)
-2V
IN
__________________Pin Configuration
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
C1+
V+
N.C.
N.C.
IN
GND
N.C.
N.C.
C1-
C2+
GND
C2-
V-
SHDN
FC1
FC0
TOP VIEW
MAX864
QSOP
__________Typic al Operating Circ uit
19-0478; Rev 0; 3/96
PART
MAX864C/D
MAX864EEE
-40°C to +85°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
Dice*
16 QSOP
______________Ordering Information
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
*Contact factory for dice specifications.
相關PDF資料 |
PDF描述 |
|---|---|
| MAX864EEE | Dual-Output Charge Pump with Shutdown |
| MAX865 | Compact, Dual-Output Charge Pump |
| MAX865EUA | Compact, Dual-Output Charge Pump |
| MAX866 | Hex Inverters 20-LCCC -55 to 125 |
| MAX866ESA | Hex Inverters 14-CDIP -55 to 125 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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/直流開關轉換器 Evaluation Kit for Max8640 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格: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/直流開關轉換器 500mA 4/2MHz Synch Step-Down DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格: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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