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MAX680CPA 参数 Datasheet PDF下载

MAX680CPA图片预览
型号: MAX680CPA
PDF下载: 下载PDF文件 查看货源
内容描述: + 5V至± 10V电压转换器 [+5V to 【10V Voltage Converters]
分类和应用: 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
文件页数/大小: 8 页 / 86 K
品牌: MAXIM [ MAXIM INTEGRATED PRODUCTS ]
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19-0896; Rev 1; 7/96
+5V to ±10V Voltage Converters
________________General Description
The MAX680/MAX681 are monolithic, CMOS, dual
charge-pump voltage converters that provide ±10V out-
puts from a +5V input voltage. The MAX680/MAX681 pro-
vide both a positive step-up charge pump to develop
+10V from +5V input and an inverting charge pump to
generate the -10V output. Both parts have an on-chip,
8kHz oscillator. The MAX681 has the capacitors internal to
the package, and the MAX680 requires four external
capacitors to produce both positive and negative voltages
from a single supply.
The output source impedances are typically 150Ω, pro-
viding useful output currents up to 10mA. The low quies-
cent current and high efficiency make this device suitable
for a variety of applications that need both positive and
negative voltages generated from a single supply.
The MAX864/MAX865 are also recommended for new
designs. The MAX864 operates at up to 200kHz and uses
smaller capacitors. The MAX865 comes in the smaller
µMAX package.
____________________________Features
o
95% Voltage-Conversion Efficiency
o
85% Power-Conversion Efficiency
o
+2V to +6V Voltage Range
o
Only Four External Capacitors Required (MAX680)
o
No Capacitors Required (MAX681)
o
500µA Supply Current
o
Monolithic CMOS Design
MAX680/MAX681
_______________Ordering Information
PART
MAX680CPA
MAX680CSA
MAX680C/D
MAX680EPA
MAX680ESA
MAX680MJA
MAX681CPD
MAX681EPD
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
8 Plastic DIP
8 Narrow SO
Dice
8 Plastic DIP
8 Narrow SO
8 CERDIP
14 Plastic DIP
14 Plastic DIP
________________________Applications
The MAX680/MAX681 can be used wherever a single
positive supply is available and where positive and nega-
tive voltages are required. Common applications include
generating ±6V from a 3V battery and generating ±10V
from the standard +5V logic supply (for use with analog
circuitry). Typical applications include:
±6V from 3V Lithium Cell
Hand-Held Instruments
Data-Acquisition Systems
Panel Meters
±10V from +5V Logic
Supply
Battery-Operated
Equipment
Operational Amplifier
Power Supplies
_________Typical Operating Circuits
+5V
C1+
4.7µF
V
CC
4.7µF
+10V
_________________Pin Configurations
TOP VIEW
MAX680
V+
C1-
C1+
V-
C2- GND
4.7µF
4.7µF
C1- 1
C2+ 2
C2- 3
V- 4
8
V+
C1+
V
CC
GND
V+ 1
C1- 2
C1- 3
C2+ 4
C2- 5
C2- 6
V- 7
14 V
CC
13 V
CC
12 V
CC
-10V
GND
+5V
V
CC
FOUR PINS REQUIRED
(MAX681 ONLY)
V+
GND
MAX680
7
6
5
MAX681
11 V
CC
10 V+
9
8
GND
GND
+10V
MAX681
GND
V-
-10V
GND
DIP/SO
GND
+5V to ±10V CONVERTER
DIP
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800