Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT25

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ZXCT1110Q

Improved offset over ZXCT1107/9

Datasheet

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Description

The ZXCT1107Q/09Q/10Q 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 automotive applications.

The device is line powered and as such doesn’t need a separate supply rail.

Quiescent current is only 3µA thereby minimizing current sensing error. One external gain setting resistor increases versatility by permitting wide gain ranges.

The ZXCT1107Q/09Q/10Q have been qualified to AEC-Q100 Grade 1 and are Automotive Grade supporting PPAPs.

Feature(s)

Wide supply and common-mode voltage range:
- 2.5V to 36V
SOT23 packages
- 3-pin ZXCT1107Q/09Q
- 5-pin ZXCT1110Q
Low quiescent current (3µA)
Extended industrial temperature range -40 to +125°C
Green Molding in SOT23
- Totally Lead-Free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
Automotive Grade
- Qualified to AEC-Q100 Standards for High Reliability
- PPAP Capable

Application(s)

Automotive current measurement
Battery management
Over current monitor

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)	Automotive
AEC Qualified	Yes
Type	Current Output
Quiescent Current (µA)	3
Minimum S+ Common-Mode Sense Voltage (V)	2.5
Maximum S+ Common-Mode Sense Voltage (V)	36
Minimum VCC/VB Supply Voltage (V)	-
Maximum VCC/VB Supply Voltage (V)	-
Sense Voltage VMAX (mV)	800
Maximum Output Voltage (V)	VS- -1
Voltage output Gain VOUT/VSENSE (V/V)	-
Current output Gain Iout/VSENSE (mA/V)	4
% Accuracy @ VSENSE =100mV Ta (%)	3.5
IS- S- Input current (nA)	19
Bandwidth typ (MHz)	0.3
Operating Ambient Temperature Range (°C)	-40 to 125
Special Features	Ground Pin - (Eliminates Quiescent Current Error)

Technical Documents

Calculators

Zetex-CM-Calculator-V1.01.xls (1.5 MB)

Recommended Soldering Techniques

TN1.pdf

Diodes Incorporated's current monitors are high-performance, high-side/power rail current measurement ICs. They greatly simplify the measurement of load currents without disturbing the ground plane/reference point.....

The current monitor families contain variants with quiescent currents as low as 3µA, and others with operating voltages up to 60V, proving solutions for overcurrent detection in consumer, industrial, and automotive applications. The portfolio includes current output variants which via an external resistor to ground to provide adjustable gain, and voltage output variants with fixed gains.

Automotive-compliant variants are available which are qualified to AEC-Q100 Grade 1 in IATF 16949 facilities supporting PPAP documentation.

Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products