加载中…MH187稳定霍尔开关IC
(2022-04-20 15:24:32)
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霍尔开关icic芯片mh187 |
MH187 Hall-effect sensor is a temperature
stable, stress-resistant latch. 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.
MH187 includes the following on a single silicon chip: voltage regulator, Hall voltage
generator, small-signal amplifier, chopper stabilization, Schmitt trigger, ESD circuit protection,
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
latches on, and only switches off when a north polarity field of sufficient strength is present.
MH187 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 three package styles
available provide magnetically optimized solutions for most applications. Package types SO is
an SOT-23(1.1 mm nominal height),SQ is an QFN2020-3(0.5 mm nominal height), a miniature
low-profile surface-mount package, while package UA is a three-lead ultra-mini SIP for
through-hole mounting.
The UA package SO type and SQ type are Halogen Free package. All of them have been
verified by third party Lab.
Features and Benefits
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.
100% tested at 150 for L.
Custom sensitivity / Temperature selection
are available.
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 
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.
MH187 includes the following on a single silicon chip: voltage regulator, Hall voltage
generator, small-signal amplifier, chopper stabilization, Schmitt trigger, ESD circuit protection,
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
latches on, and only switches off when a north polarity field of sufficient strength is present.
MH187 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 three package styles
available provide magnetically optimized solutions for most applications. Package types SO is
an SOT-23(1.1 mm nominal height),SQ is an QFN2020-3(0.5 mm nominal height), a miniature
low-profile surface-mount package, while package UA is a three-lead ultra-mini SIP for
through-hole mounting.
The UA package SO type and SQ type are Halogen Free package. All of them have been
verified by third party Lab.
Features and Benefits
Applications
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