MH189 Hall-effect sensor is a temperature stable, stress-resistant sensor. Superior

high-temperature performance is made possible through a dynamic offset cancellation that

utilizes chopper-stabilization. This method reduces the offset voltage normally caused by

device over molding, temperature dependencies, and thermal stress.

MH189 includes the following on a single silicon chip: voltage regulator, Hall voltage

generator, small-signal amplifier, chopper stabilization, Schmitt trigger, Open drain output.

Advanced CMOS wafer fabrication processing is used to take advantage of low-voltage

requirements, component matching, very low input-offset errors, and small component

geometries.

This device requires the presence of both south and north polarity magnetic fields for

operation. In the presence of a south polarity field of sufficient strength, the device output

sensor on, and only switches off when a north polarity field of sufficient strength is present.

MH189 is rated for operation between the ambient temperatures –40℃ and 85℃ for the

E temperature range, and –40℃ to 125℃ for the K temperature range. The two package styles

available provide magnetically optimized solutions for most applications. Package SO is an

SOT-23, a miniature low-profile surface-mount package, while package UA is a three-lead

ultra mini SIP for through-hole mounting.

Packages is Halogen Free standard and which have been verified by third party lab.

Features and Benefits

⚫ DMOS Hall IC Technology

⚫ AECQ qualified

⚫ Reverse bias protection on power supply pin.

⚫ Chopper stabilized amplifier stage

⚫ Optimized for BLDC motor applications

⚫ Reliable and low shifting on high Temp condition

⚫ Good ESD Protection

⚫ 100% tested at 125 ℃ for K.

⚫ Custom sensitivity / Temperature selection are available.

⚫ RoHS compliant 2011/65/EU and Halogen Free

Applications

⚫ High temperature Fan motor

⚫ 3 phase BLDC motor application

⚫ Speed sensing

⚫ Position sensing

⚫ Current sensing

⚫ Revolution counting

⚫ Solid-State Switch

⚫ Linear Position Detection

⚫ Angular Position Detection

⚫ Proximity Detection

⚫ High ESD Capability