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ICL7662CBD

更新时间: 2024-09-21 04:58:11
品牌 Logo 应用领域
英特矽尔 - INTERSIL 转换器
页数 文件大小 规格书
10页 223K
描述
CMOS Voltage Converter

ICL7662CBD 数据手册

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ICL7662  
®
J anuary 9, 2006  
FN3181.4  
CMOS Voltage Converter  
Features  
The Intersil ICL7662 is a monolithic high-voltage CMOS  
power supply circuit which offers unique performance ad-  
vantages over previously available devices. The ICL7662  
performs supply voltage conversion from positive to negative  
for an input range of +4.5V to +20.0V, resulting in  
complementary output voltages of -4.5V to -20V. Only 2  
noncritical external capacitors are needed for the charge  
pump and charge reservoir functions. The ICL7662 can also  
function as a voltage doubler, and will generate output  
voltages up to +38.6V with a +20V input.  
• No External Diode Needed Over Entire Temperature  
Range  
• Pin Compatible With ICL7660  
• Simple Conversion of +15V Supply to -15V Supply  
• Simple Voltage Multiplication (V  
= (-)nV )  
IN  
OUT  
• 99.9% Typical Open Circuit Voltage Conversion  
Efficiency  
• 96% Typical Power Efficiency  
• Wide Operating Voltage Range 4.5V to 20.0V  
Contained on chip are a series DC power supply regulator,  
RC oscillator, voltage level translator, four output power  
MOS switches. A unique logic element senses the most  
negative voltage in the device and ensures that the output N-  
Channel switch source-substrate junctions are not forward  
biased. This assures latchup free operation.  
• Easy to Use - Requires Only 2 External Non-Critical  
Passive Components  
Pb-Free Plus Anneal Available (RoHS Compliant)  
Applications  
The oscillator, when unloaded, oscillates at a nominal  
frequency of 10kHz for an input supply voltage of 15.0V.  
This frequency can be lowered by the addition of an external  
capacitor to the “OSC” terminal, or the oscillator may be  
overdriven by an external clock.  
• On Board Negative Supply for Dynamic RAMs  
• Localized µProcessor (8080 Type) Negative Supplies  
• Inexpensive Negative Supplies  
• Data Acquisition Systems  
The “LV” terminal may be tied to GROUND to bypass the  
internal series regulator and improve low voltage (LV)  
operation. At medium to high voltages (+10V to +20V), the  
LV pin is left floating to prevent device latchup.  
• Up to -20V for Op Amps  
Pinouts  
ICL7662CBD-0 (SOIC)  
ICL7662CBD AND IBD (SOIC)  
TOP VIEW  
TOP VIEW  
TEST  
NC  
1
2
3
4
5
6
7
14 V+  
13 OSC  
12 NC  
11 LV  
NC  
TEST  
NC  
1
2
3
4
5
6
7
14 V+  
13 NC  
12 OSC  
11 LV  
CAP+  
NC  
CAP+  
GND  
NC  
GND  
NC  
10 NC  
10 NC  
9
8
NC  
V
9
8
V
OUT  
CAP-  
CAP-  
NC  
OUT  
ICL7662 (PDIP)  
TOP VIEW  
TEST  
CAP+  
GND  
1
8
7
6
5
V+  
2
3
4
OSC  
LV  
CAP-  
V
OUT  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1
1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright Intersil Americas Inc. 2002, 2005, 2006. All Rights Reserved  
All other trademarks mentioned are the property of their respective owners.  

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