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Issue 6 - March 2008 1 www.zetex.com

ZXCT1022

Low offset high-side current monitor

Description

Ordering information

The ZXCT1022 is a precision high-side current

sense monitor. Using this type of device

eliminates the need to disrupt the ground

plane when sensing a load current.

The ZXCT1022 provides a fixed gain of 100 for

applications where minimal sense voltage is

required.

The very low offset voltage enables a typical

accuracy of 3% for sense voltages of only 10mV,

giving better tolerances for small sense

resistors necessary at higher currents.

The wide input voltage range of 20V down to as

low as 2.5V make it suitable for a range of

applications. With a minimum operating

current of just 25µA, combined with its SOT23-

5 package make it suitable for portable battery

equipment too.

Features

• Accurate high-side current sensing

• Ground referred output

• 2.5V – 20V supply range

•25␮A quiescent current

• SOT23-5 package

Applications

• Battery chargers

• Smart battery packs

• DC motor control

• Over-current protection

• Power supply current measurement

• Level translating

Pinout information Typical application circuit

Order reference Package Device

marking

Status Reel size

(inches)

Quantity

per reel

Tape width

(mm)

ZXCT1022E5TA SOT23-5 1022 Active 7 3000 8

GND

OUT

SENSE

Pinout - top view

1 2 3 4 5 6 7 8

ZXCT1022 1

Podsumowanie treści

Strona 1 - ZXCT1022

Issue 6 - March 2008 1 www.zetex.com© Zetex Semiconductors plc 2008ZXCT1022Low offset high-side current monitorDescriptionOrdering informationThe ZXCT

Strona 2

ZXCT1022Issue 6 - March 2008 2 www.zetex.com© Zetex Semiconductors plc 2008Absolute maximum ratingsPinout informationVoltage on Vs+ (*) pinVoltage on

Strona 3

ZXCT1022Issue 6 - March 2008 3 www.zetex.com© Zetex Semiconductors plc 2008Electrical characteristics test conditions Tamb = 25°C, VIN = 15VSymbol Par

Strona 4

Strona 5

Strona 6

ZXCT1022Issue 6 - March 2008 6 www.zetex.com© Zetex Semiconductors plc 2008Application informationThe ZXCT1022 has a fixed dc voltage gain of 100. No

Strona 7

ZXCT1022Issue 6 - March 2008 7 www.zetex.com© Zetex Semiconductors plc 2008Package outline - SOT23-5Note: Controlling dimensions are in millimeters. A

Strona 8

ZXCT1022Issue 6 - March 2008 8 www.zetex.com© Zetex Semiconductors plc 2008 DefinitionsProduct changeZetex Semiconductors reserves the right to alter,

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