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Intersil Corporation - ICL7660S

Numéro de référence 7660S
Description ICL7660S
Fabricant Intersil Corporation 
Logo Intersil Corporation 





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7660S fiche technique
Data Sheet
ICL7660S
April 1999 File Number 3179.2
Super Voltage Converter
The ICL7660S Super Voltage Converter is a monolithic
CMOS voltage conversion IC that guarantees significant
performance advantages over other similar devices. It is a
direct replacement for the industry standard ICL7660 offering
an extended operating supply voltage range up to 12V, with
lower supply current. No external diode is needed for the
ICL7660S. In addition, a Frequency Boost pin has been
incorporated to enable the user to achieve lower output
impedance despite using smaller capacitors. All
improvements are highlighted in the Electrical Specifications
section. Critical parameters are guaranteed over the entire
commercial, industrial and military temperature ranges.
The ICL7660S performs supply voltage conversion from
positive to negative for an input range of 1.5V to 12V,
resulting in complementary output voltages of -1.5V to -12V.
Only 2 non-critical external capacitors are needed for the
charge pump and charge reservoir functions. The ICL7660S
can be connected to function as a voltage doubler and will
generate up to 22.8V with a 12V input. It can also be used as
a voltage multiplier or voltage divider.
The chip contains a series DC power supply regulator, RC
oscillator, voltage level translator, and four output power
MOS switches. The oscillator, when unloaded, oscillates at a
nominal frequency of 10kHz for an input supply voltage of
5.0V. This frequency can be lowered by the addition of an
external capacitor to the “OSC” terminal, or the oscillator
may be over-driven by an external clock.
The “LV” terminal may be tied to GND to bypass the internal
series regulator and improve low voltage (LV) operation. At
medium to high voltages (3.5V to 12V), the LV pin is left
floating to prevent device latchup.
Ordering Information
PART
NUMBER
ICL7660SCBA
ICL7660SCPA
TEMP.
RANGE
(oC)
0 to 70
0 to 70
PACKAGE
8 Ld P SOIC (N)
8 Ld PDIP
PKG. NO.
M8.15
E8.3
ICL7660SIBA
-40 to 85 8 Ld P SOIC (N)
M8.15
ICL7660SIPA
-40 to 85 8 Ld PDIP
www.DataSheet4U.com
ICL7660SMTV -55 to 125 8 Pin Metal Can
(Note)
E8.3
T8.C
NOTE: Add /883B to part number if 883B processing is required.
Features
• Guaranteed Lower Max Supply Current for All
Temperature Ranges
• Wide Operating Voltage Range 1.5V to 12V
• 100% Tested at 3V
• No External Diode Over Full Temperature and Voltage
Range
• Boost Pin (Pin 1) for Higher Switching Frequency
• Guaranteed Minimum Power Efficiency of 96%
• Improved Minimum Open Circuit Voltage Conversion
Efficiency of 99%
• Improved SCR Latchup Protection
• Simple Conversion of +5V Logic Supply to ±5V Supplies
• Simple Voltage Multiplication VOUT = (-)nVIN
• Easy to Use - Requires Only 2 External Non-Critical
Passive Components
• Improved Direct Replacement for Industry Standard
ICL7660 and Other Second Source Devices
Applications
• Simple Conversion of +5V to ±5V Supplies
• Voltage Multiplication VOUT = ±nVIN
• Negative Supplies for Data Acquisition Systems and
Instrumentation
• RS232 Power Supplies
• Supply Splitter, VOUT = ±VS/2
Pinouts
ICL7660S (PDIP, SOIC)
TOP VIEW
BOOST 1
CAP+ 2
GND 3
CAP- 4
8 V+
7 OSC
6 LV
5 VOUT
ICL7660S (CAN)
TOP VIEW
V+ (AND CASE)
8
BOOST 1
7 OSC
CAP+ 2
6 LV
GND 3
5 VOUT
4
CAP-
3-36
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999

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