ZXCT1009 Ver la hoja de datos (PDF) - Diodes Incorporated.

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Fabricante

ZXCT1009

HIGH-SIDE CURRENT MONITOR

Diodes Incorporated. 

ZXCT1009

HIGH-SIDE CURRENT MONITOR

Description

The ZXCT1009 is a high side current sense monitor. Using

this device eliminates the need to disrupt the ground plane

when sensing a load current.

It takes a high side voltage developed across a current shunt

resistor and translates it into a proportional output current. A

user defined output resistor scales the output current into a

ground-referenced voltage.

The wide input voltage range of 20V down to as low as 2.5V

make it suitable for a range of applications. A minimum

operating current of just 4µA, combined with a SOT23

package make it a unique solution for portable battery

equipment. The SM8 device offers an alternative package

option.

Features

• Low cost, accurate high-side current sensing

• Output voltage scaling

• Up to 2.5V sense voltage

• 2.5V to 20V supply range

• 4μA quiescent current

• 1% typical accuracy

• SOT23 and SM8 packages

• AEC-Q100.3 qualified; ZXCT1009FTA only

Pin Assignments

SOT23

Package Suffix - F

VSENSE- 3

VSE NS E+

2

1 IOUT

(Top View)

SM8

Package Suffix – T8

VSENSE- 1

N/C 2

VSENSE+ 3

IOUT 4

8 N/C

7 N/C

6 N/C

5 N/C

(Top View)

Applications

• Battery chargers

• Smart battery packs

• DC motor control

• Over current monitor

• Power management

• Level translating

• Programmable current source

•

Application Circuit

VIN

RSENSE

To load

2

V S E NSE +

3

V SE NSE-

ZXCT1009

IO UT

1

VOUT

ROUT

ZXCT1009

Document number: DS33441 Rev. 12 - 2

1 of 8

www.diodes.com

April 2011

© Diodes Incorporated

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