ZXCT1107/1109/1110

LOW POWER HIGH-SIDE CURRENT MONITORS

ZXCT1107/1109/1110

Document number: DS35033 Rev. 3 - 2

1 of 16

www.diodes.com

JULY 2011

© Diodes Incorporated

A Product Line of

Diodes Incorporated

Description

The ZXCT1107/09/10 are high side unipolar current sense

monitors. These devices eliminate the need to disrupt the

ground plane when sensing a load current.

The wide common-mode input voltage range and low

quiescent current coupled with SOT23 packages make

them suitable for a range of applications; including

adapters, automotive and systems operating from industrial

24V rails.

The device is line powered and as such doesn’t need a

separate supply rail.

Quiescent current is only 3µA thereby minimising current

sensing error. One external gain setting resistor increases

versatility by permitting wide gain ranges.

Features

•

Wide supply and common-mode voltage range:

2.5V to 36V

•

SOT23 packages

o

3-pin

ZXCT1107/09

o

5-pin

ZXCT1110

•

Low quiescent current (3µA).

•

Extended industrial temperature range -40 to 125°C

•

AEC-Q100 Grade1 Automotive qualified variants

Applications

•

Automotive current measurement

•

Industrial applications current measurement

•

Battery management

•

Over current monitor

•

Power Management

Pin Assignments

ZXCT1107

Top View

OUT

1

2

S-

3

S+

OUT

1

2

S-

3

S+

ZXCT1109

Top View

OUT

1

2 S+

3

S-

OUT

1

2 S+

3

S-

ZXCT1110

Top View

GND

2

5

S-

4

S+

NC

1

OUT

3

GND

2

5

S-

4

S+

NC

1

OUT

3

Typical Application Circuit