Diodes ZXCT1107/1109/1110 - Manual

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
NEW PROD
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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