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

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ZXCT1050

Wide Common Mode Current Monitor

Datasheet

Evaluation Boards and User Guides

ZXCT1050EV1-User-Guide.pdf (134 KB)

Contact Sales

Description

The ZXCT1050 is a wide input range current monitor, which operates over a range of input voltages from ground up to V_CC-2V. As a result the ZXCT1050 can be used on the high or low side of the load. The ZXCT1050 provides variable gain by using two external resistors. The first of which sets the trans conductance and the second setting the overall gain. The very low offset voltage enables a typical accuracy of 1% for sense voltages of only 30mV, giving better tolerances for small sense resistors necessary at higher currents.

Feature(s)

Accurate down to end current sensing

Output voltage scaling x10

0 to V_CC-2V sense input range

2.7 to 20V supply range

50μA quiescent current

SOT25 package

Application(s)

Power supply

DC motor and solenoid control

Battery management

Over current monitor

Power management

Short circuit detection

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)	Standard
AEC Qualified	No
Type	Current Output
Quiescent Current (µA)	50
Minimum S+ Common-Mode Sense Voltage (V)	0
Maximum S+ Common-Mode Sense Voltage (V)	VCC-2
Minimum VCC/VB Supply Voltage (V)	2.7
Maximum VCC/VB Supply Voltage (V)	20
Sense Voltage VMAX (mV)	500
Maximum Output Voltage (V)	VCC-2
Voltage output Gain VOUT/VSENSE (V/V)	-
Current output Gain Iout/VSENSE (mA/V)	Ext resistor
% Accuracy @ VSENSE =100mV Ta (%)	3
IS- S- Input current (nA)	15
Bandwidth typ (MHz)	0.8
Operating Ambient Temperature Range (°C)	-40 to 125
Special Features	Separate VCC Pin + Current Gain (x20) + Short Circuit Protection

Technical Documents

Application Notes

an45.pdf (129 KB)

ICP Reports

SOT23-5ICP.pdf (925 KB)

Calculators

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

Evaluation Boards and User Guides

ZXCT1050EV1-User-Guide.pdf (134 KB)

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.

RoHS CofC

RoHSFile

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