MCS1801

5V, Linear Hall-Effect Current Sensor with ±3% Accuracy Over Temperature

Datasheet

Description

The MCS1801 is a linear Hall-effect current sensor for AC or DC current sensing. The Hall array is differential, which cancels out any stray magnetic field.

A primary conductor with a low resistance allows current to flow close to the IC, which contains high-accuracy Hall-effect sensors. This current generates a magnetic field that is sensed at two different points by the integrated Hall-effect transducers. The magnetic field difference between these two points is then converted into a voltage that is proportional to the applied current. A spinning current technique is used for a low stable offset.

The galvanic isolation between the pins of the primary conductive path and the sensor leads allows the MCS1801 to replace opto-isolators or other isolation devices.

The MCS1801 requires a minimal number of readily available, standard external components. The device’s small footprint saves board area and makes it well-suited for space-constrained applications. The MCS1801 is available in an SOIC-8 package.

Features & Benefits

5V Single Supply
Immune to External Magnetic Fields by Differential Sensing
200VRMS Working Voltage for Basic Isolation
-40°C to +125°C Operating Temperature
1.2mΩ Internal Conductor Resistance
±12.5A and ±25A Range
Adjustable Bandwidth Up to 100kHz
4μs Output Rising Time
Ratiometric Output from Supply Voltage
Output Proportional to AC or DC Currents
Factory-Trimmed for Accuracy
No Magnetic Hysteresis
Integrated Shield Suppressing Capacitive Coupling from Current Conductor to Die (Up to 10V/ns)
Available in an SOIC-8 Package

Active Part Numbers:

MCS1801GS-12-P MCS1801GS-12-Z MCS1801GS-25-P MCS1801GS-25-Z

Meaning of P & Z

Related Products

EVCS180 Linear Hall-Effect Current Sensor Evaluation Board

The EVCS180X-S-Y-00A is an evaluation board designed to demonstrate the capabilities of the MCS180x family, which are linear Hall-effect current sensors for AC and DC current sensing. The Hall array is differential, which cancels out stray magnetic fields. The MCS180x series provides two power supply options (3.3V or 5V), and six full current ranges between 5A and 50A for the best accuracy across different applications.

The output voltage (V_OUT) is proportional to the primary applied current flowing through the primary conductor. The galvanic isolation between the primary conductive path pins and the sensor leads allow the MCS180x to replace optoisolators or other expensive isolation devices. The MCS180x is available in an SOIC-8 package.

$10.00
+ tax