icl7660aipa Intersil Corporation, icl7660aipa Datasheet

icl7660aipa

Manufacturer Part Number

icl7660aipa

Description

Cmos Voltage Converters

Manufacturer

Intersil Corporation

Datasheet

1.ICL7660AIPA.pdf (10 pages)

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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.

Ordering Information

ICL7660CBA

ICL7660CBA-T

ICL7660CPA

ICL7660MTV†

ICL7660ACBA

ICL7660ACBA-T

ICL7660ACPA

ICL7660AIBA

ICL7660AIBA-T

ICL7660AIPA

†

Add /883B to part number if 883B processing is required.

PART NO.

RANGE (

-40 to 85

TEMP.

0 to 70

3-26

8 Ld SOIC (N)

Tape and Reel

8 Ld PDIP

8 Pin Metal Can

8 Ld SOIC (N)

Tape and Reel

8 Ld PDIP

8 Ld SOIC (N)

Tape and Reel

8 Ld PDIP

PACKAGE

Data Sheet

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

M8.15

E8.3

T8.C

M8.15

E8.3

M8.15

E8.3

PKG.

NO.

http://www.intersil.com or 407-727-9207

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

Applications

• On Board Negative Supply for Dynamic RAMs

• Localized Processor (8080 Type) Negative Supplies

• Inexpensive Negative Supplies

• Data Acquisition Systems

Pinouts

- ICL7660 . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V to 10.0V

- ICL7660A . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V to 12.0V

Passive Components

April 1999

ICL7660, ICL7660A (PDIP, SOIC)

CAP+

CAP-

GND

ICL7660 (METAL CAN)

ICL7660, ICL7660A

V+ (AND CASE)

TOP VIEW

CAP-

File Number 3072.4

OUT

= (-) nV

V+

OSC

Intersil Corporation 1999

OUT

)

Related parts for icl7660aipa

icl7660aipa Summary of contents

Page 1

... Ld PDIP ICL7660AIBA - SOIC (N) ICL7660AIBA-T - SOIC (N) Tape and Reel ICL7660AIPA - PDIP † Add /883B to part number if 883B processing is required. 3-26 April 1999 Features • Simple Conversion of +5V Logic Supply to 5V Supplies • Simple Voltage Multiplication (V • ...

Page 2

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

Page 3

Electrical Speciﬁcations ICL7660 and ICL7660A 5V, T Unless Otherwise Speciﬁed (Continued) PARAMETER SYMBOL Voltage Conversion Efficiency V OUT Power Efficiency P EFF NOTES: 2. Connecting any input terminal to voltages greater than V+ or less than GND may ...

Page 4

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 ...

Page 5

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

Page 6

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 7

V -(V 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 ...

Page 8

In a typical application where (23 (ESR ( ...

Page 9

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 10

... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certiﬁcation. Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time with- out notice. 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 ...

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