ICL7662IBD Intersil Corporation, ICL7662IBD Datasheet

ICL7662IBD

Manufacturer Part Number

ICL7662IBD

Description

CMOS Voltage Converter

Manufacturer

Intersil Corporation

Datasheets

1.ICL7662IBD.pdf (10 pages)

2.ICL7662IBD.pdf (10 pages)

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Manufacturer

Quantity

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ICL7662IBD

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Quantity:

5 510

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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.

Pinouts

CAP+

TEST

CAP-

GND

ICL7662CBD-0 (SOIC)

TOP VIEW

V+

OSC

OUT

Data Sheet

CAP+

TEST

CAP-

ICL7662CBD AND IBD (SOIC)

GND

1-888-INTERSIL or 321-724-7143

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

ICL7662 (PDIP)

TOP VIEW

Features

• No External Diode Needed Over Entire Temperature

• Pin Compatible With ICL7660

• Simple Conversion of +15V Supply to -15V Supply

• Simple Voltage Multiplication (V

• 99.9% Typical Open Circuit Voltage Conversion

• 96% Typical Power Efficiency

• Wide Operating Voltage Range 4.5V to 20.0V

• Easy to Use - Requires Only 2 External Non-Critical

Applications

• On Board Negative Supply for Dynamic RAMs

• Localized µProcessor (8080 Type) Negative Supplies

• Inexpensive Negative Supplies

• Data Acquisition Systems

• Up to -20V for Op Amps

Range

Efficiency

Passive Components

V+

OSC

CAP-

V+

OSC

OUT

Intersil (and design) is a registered trademark of Intersil Americas Inc.

April 1999

CAP+

TEST

GND

File Number

ICL7662 (CAN)

OUT

TOP VIEW

= (-)nV

V+

ICL7662

)

3181.3

OSC

OUT

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