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ZXCT1051

Precision Wide Input Range Current Monitor

Datasheet

Evaluation Boards and User Guides

ZXCT1051EV1-User-Guide.pdf (191 KB)

Contact Sales

Description

The ZXCT1051 is a wide input range current monitor, which operates over a range of input voltages from ground up to VCC-2V. As a result the ZXCT1051 can be used on the high or low side of the load. 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 VCC-2V sense input range

2.7 to 20V supply range

50 μA quiescent current

1% typical accuracy

SOT23-5 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	Voltage 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)	2.5
Maximum VCC/VB Supply Voltage (V)	20
Sense Voltage VMAX (mV)	300
Maximum Output Voltage (V)	VCC-2
Voltage output Gain VOUT/VSENSE (V/V)	10
Current output Gain Iout/VSENSE (mA/V)	-
% Accuracy @ VSENSE =100mV Ta (%)	-
IS- S- Input current (nA)	60
Bandwidth typ (MHz)	2
Operating Ambient Temperature Range (°C)	-40 to 125
Special Features	Separate Vcc Pin + Extended Temp Range + 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

ZXCT1051EV1-User-Guide.pdf (191 KB)

Recommended Soldering Techniques

TN1.pdf

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