ZXCT1012 datasheet(6/10 Pages) DIODES

6 / 10 page

ZXCT1012

Issue 1 - December 2006

www.zetex.com

The following lines describe how to scale a load current to an output voltage.

VSENSE

= RSENSE * ILOAD

equation (1)

IOUT

= 10mA/V x VSENSE

equation (2)

VOUT

= IOUT x ROUT

equation (3)

Design example

In the circuit below a 1A current is to be represented by a 100mV output voltage (VOUT):

To be within recommended values choose the value of RSENSE to give:

50mV > VSENSE > 200mV at full load.

For example set VSENSE = 100mV at 1.0A.

From equation (1)

RSENSE

= 0.1V/1.0A

= 0.1

Now choose ROUT to give:

VOUT = 100mV, when VSENSE = 100mV.

From equation (2)

IOUT

= 10mA/V x 0.1

= 1mA

Rearranging equation (3) for ROUT gives:

ROUT = VOUT/IOUT

= 0.1/0.001

= 100

= 0.1 / (0.1 x 0.01) = 100

Typical circuit application

Where RLOAD represents any load including DC motors, a charging battery or further circuitry that

requires monitoring, Rsense can be selected on specific requirements of accuracy, size and power

rating.

OUT

GND

SENSE+

SENSE-

LOAD

ZXCT1012

SENSE

ZXCT1012 데이터시트(PDF) 6 Page - Diodes Incorporated

ZXCT1012 데이터시트(HTML) 6 Page - Diodes Incorporated

Html Pages

1 2 3 4 5 6 7 8 9 10

데이터시트 다운로드

링크 URL