iA1188D Hall-effect sensor is a temperature stable, stress-resistant sensor. Superior hightemperature performance is made possible through a dynamic offset cancellation that utilizes chopperstabilization. This method reduces the offset voltage normally caused by device over molding, temperature dependencies, and thermal stress. 
 
iA1188D includes the following on a single silicon chip: voltage regulator, Hall voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger. Advanced DMOS 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. 
 
iA1188D is rated for operation between the ambient temperatures -40℃ to 125℃. The two package styles available provide magnetically optimized solutions for most applications. iA1188D is an SOT-23, a miniature low-profile surfacemount package.  
 
Package is Halogen Free standard and which have been verified by third party lab. 

Features

• DMOS Hall IC Technology.
• Reverse bias protection on power supply pin.
• Chopper stabilized amplifier stage.
• Optimized for BLDC motor applications.
• Reliable and low shifting on high Temp condition.
• Switching offset compensation at typically 69 kHz.
• Good ESD Protection. 

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 

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