ICL7660SIBAZ Intersil, ICL7660SIBAZ Datasheet

IC VOLTAGE CONVERTER CMOS 8-SOIC

ICL7660SIBAZ

Manufacturer Part Number
ICL7660SIBAZ
Description
IC VOLTAGE CONVERTER CMOS 8-SOIC
Manufacturer
Intersil
Type
Switched Capacitor (Charge Pump), Doubler, Invertingr
Datasheets

Specifications of ICL7660SIBAZ

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Frequency - Switching
10kHz, 35kHz
Voltage - Input
1.5 ~ 12 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Primary Input Voltage
12V
No. Of Outputs
1
Output Voltage
22.8V
Output Current
20mA
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Filter Terminals
SMD
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Voltage - Output
-
Power - Output
-

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0
CMOS Voltage Converters
The Intersil ICL7660 and ICL7660A are monolithic CMOS
power supply circuits which offer unique performance
advantages over previously available devices. The ICL7660
performs supply voltage conversions from positive to
negative for an input range of +1.5V to +10.0V resulting in
complementary output voltages of -1.5V to -10.0V and the
ICL7660A does the same conversions with an input range of
+1.5V to +12.0V resulting in complementary output voltages
of -1.5V to -12.0V. Only 2 noncritical external capacitors are
needed for the charge pump and charge reservoir functions.
The ICL7660 and ICL7660A can also be connected to
function as voltage doublers and will generate output
voltages up to +18.6V with a +10V input.
Contained on the chip are a series DC supply regulator, RC
oscillator, voltage level translator, and 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 5.0V. 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 (+3.5V to +10.0V for
the ICL7660 and +3.5V to +12.0V for the ICL7660A), the LV
pin is left floating to prevent device latchup.
Pinouts
CAP+
CAP-
GND
NC
ICL7660, ICL7660A
(8 LD PDIP, SOIC)
1
2
3
4
TOP VIEW
®
1
Data Sheet
8
7
6
5
V+
OSC
LV
V
OUT
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Simple Conversion of +5V Logic Supply to ±5V Supplies
• Simple Voltage Multiplication (V
• Typical Open Circuit Voltage Conversion Efficiency 99.9%
• Typical Power Efficiency 98%
• Wide Operating Voltage Range
• ICL7660A 100% Tested at 3V
• Easy to Use - Requires Only 2 External Non-Critical
• No External Diode Over Full Temp. and Voltage Range
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• On Board Negative Supply for Dynamic RAMs
• Localized µProcessor (8080 Type) Negative Supplies
• Inexpensive Negative Supplies
• Data Acquisition Systems
- ICL7660 . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V to 10.0V
- ICL7660A . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V to 12.0V
Passive Components
October 10, 2005
All other trademarks mentioned are the property of their respective owners.
Copyright © Intersil Americas Inc. 1999-2004, 2005. All Rights Reserved
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
ICL7660, ICL7660A
OUT
= (-) nV
IN
FN3072.7
)

Related parts for ICL7660SIBAZ

ICL7660SIBAZ Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 All other trademarks mentioned are the property of their respective owners. ICL7660, ICL7660A FN3072.7 = (-) nV ) OUT IN | Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 1999-2004, 2005. All Rights Reserved ...

Page 2

... NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. ...

Page 3

C Absolute Maximum Ratings Supply Voltage ICL7660 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

... In the test circuit, there is no external capacitor applied to pin 7. However, when the device is plugged into a test socket, there is usually a very small but finite stray capacitance present, of the order of 5pF. 5. The Intersil ICL7660A can operate without an external diode over the full temperature and voltage range. This device will function in existing designs which incorporate an external diode with no degradation in overall circuit performance. ...

Page 5

Typical Performance Curves 350 I = 1mA OUT 300 250 200 150 100 50 0 -55 - TEMPERATURE ( FIGURE 3. OUTPUT SOURCE RESISTANCE AS A FUNCTION OF TEMPERATURE 10K 1K 100 °C T ...

Page 6

Typical Performance Curves +2 ° LOAD CURRENT I FIGURE 9. OUTPUT VOLTAGE AS A FUNCTION OF OUTPUT CURRENT NOTE: 6. These curves include in ...

Page 7

The voltage regulator portion of the ICL7660 and ICL7660A is an integral part of the anti-latchup circuitry, however its inherent voltage drop can degrade operation at low voltages. Therefore, to improve low voltage operation the “LV” pin should be connected ...

Page 8

V -(V 10µ FIGURE 16. CASCADING DEVICES FOR INCREASED OUTPUT VOLTAGE Typical Applications Simple Negative Voltage Converter The majority of applications will undoubtedly utilize the ICL7660 and ICL7660A for generation of ...

Page 9

In a typical application where 10µ ≅ (ESR Since the ESRs of the capacitors are reflected in the output impedance ...

Page 10

ICL7660 + ICL7660A FIGURE 18. LOWERING OSCILLATOR FREQUENCY Positive Voltage Doubling The ICL7660 and ICL7660A may be employed to achieve positive voltage doubling using the circuit shown in Figure ...

Page 11

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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