參數(shù)資料
型號: ICL7662CPAZ
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: CMOS Voltage Converter
中文描述: SWITCHED CAPACITOR CONVERTER, 10 kHz SWITCHING FREQ-MAX, PDIP8
封裝: ROHS COMPLIANT, PLASTIC, DIP-8
文件頁數(shù): 1/10頁
文件大?。?/td> 230K
代理商: ICL7662CPAZ
1
FN3181.4
ICL7662
CMOS Voltage Converter
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.
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.
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.
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.
Features
No External Diode Needed Over Entire Temperature
Range
Pin Compatible With ICL7660
Simple Conversion of +15V Supply to -15V Supply
Simple Voltage Multiplication (V
OUT
= (-)nV
IN
)
99.9% Typical Open Circuit Voltage Conversion
Efficiency
96% Typical Power Efficiency
Wide Operating Voltage Range 4.5V to 20.0V
Easy to Use - Requires Only 2 External Non-Critical
Passive Components
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
On Board Negative Supply for Dynamic RAMs
Localized
μ
Processor (8080 Type) Negative Supplies
Inexpensive Negative Supplies
Data Acquisition Systems
Up to -20V for Op Amps
Pinouts
ICL7662CBD-0 (SOIC)
TOP VIEW
ICL7662CBD AND IBD (SOIC)
TOP VIEW
ICL7662 (PDIP)
TOP VIEW
TEST
NC
CAP+
NC
GND
NC
CAP-
V+
OSC
NC
LV
NC
NC
V
OUT
1
2
3
4
5
6
7
14
13
12
11
10
9
8
NC
TEST
NC
CAP+
GND
NC
NC
V+
NC
OSC
LV
NC
V
OUT
CAP-
1
2
3
4
5
6
7
14
13
12
11
10
9
8
TEST
CAP+
GND
CAP-
1
2
3
4
8
7
6
5
V+
OSC
LV
V
OUT
Data Sheet
January 9, 2006
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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.
POSOBSOLETE PRODUCT
INTERSIL ICL7660XXX SERIES
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