TC682 TELCOM [TelCom Semiconductor, Inc], TC682 Datasheet

TC682

Manufacturer Part Number

TC682

Description

INVERTING VOLTAGE DOUBLER

Manufacturer

TELCOM [TelCom Semiconductor, Inc]

Datasheets

1.TC682.pdf (6 pages)

2.TC682.pdf (6 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TC682COA

Manufacturer:

Quantity:

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Part Number:

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Manufacturer:

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Part Number:

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Manufacturer:

MICRO

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Part Number:

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Manufacturer:

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Bonase Electronics (HK) Co., Limited

Part Number:

TC682EOA

Manufacturer:

TELCOM

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Company:

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Part Number:

TC682EOA

Manufacturer:

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Company:

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Part Number:

TC682EOA725

Manufacturer:

TELCOM

Quantity:

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INVERTING VOLTAGE DOUBLER

FEATURES

TYPICAL OPERATING CIRCUIT

APPLICATIONS

GND

99.9% Voltage Conversion Efficiency

92% Power Conversion Efficiency

Wide Input Voltage Range ............... +2.4V to +5.5V

Only 3 External Capacitors Required

185 A Supply Current

Space-Saving 8-Pin SOIC and 8-Pin Plastic DIP

Packages

– 10V from +5V Logic Supply

– 6V from a Single 3V Lithium Cell

Portable Handheld Instruments

Cellular Phones

LCD Display Bias Generator

Panel Meters

Operational Amplifier Power Supplies

V IN

TELCOM SEMICONDUCTOR, INC.

+2.4V < V IN < +5.5V

C 1

C 2

–

All Caps = 3.3 F

C 1 +

C 1 –

C 2 +

C 2 –

GND

V IN

TC682

V OUT

OUT

C OUT

= – (2 x V

V OUT

)

GENERAL DESCRIPTION

provides an inverted doubled output from a single positive

supply. An on-board 12kHz (typical) oscillator provides the

clock and only 3 external capacitors are required for full

circuit implementation.

vides output current up to 10mA. The TC682 features low

quiescent current and high efficiency, making it the ideal

choice for a wide variety of applications that require a

negative voltage derived from a single positive supply (for

example: generation of – 6V from a 3V lithium cell or – 10V

generated from a +5V logic supply).

size of the TC682 make it useful in many medium-current,

dual voltage analog power supplies.

PIN CONFIGURATIONS

ORDERING INFORMATION

Part No.

TC682COA

TC682CPA

TC682EOA

TC682EPA

TC7660EV

The TC682 is a CMOS charge pump converter that

Low output source impedance (typically 140 ), pro-

The minimum external parts count and small physical

V OUT

C 1 –

C 2 +

C 2 –

C 1 –

C 2 +

C 2 –

EVALUATION

AVAILABLE

Package

8-Pin SOIC

8-Pin Plastic DIP

8-Pin SOIC

8-Pin Plastic DIP

Evaluation Kit for

Charge Pump Family

8-Pin SOIC

KIT

8-Pin DIP

TC682CPA

TC682COA

TC682EOA

TC682EPA

– 40 C to +85 C

C 1 +

GND

V IN

C 1 +

Temp. Range

V IN

GND

0 C to +70 C

TC682

TC682-2 8/21/96

4-21

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