1 Features

? Low power consumption:

– 10-Hz versions: 1.3 μA at 3 V

– 20-Hz versions: 2 μA at 3 V

– 216-Hz versions: 16 μA at 3 V

? 1.65-V to 5.5-V operating VCC range

? Magnetic threshold option (typical BOP):

– 1.8 mT with 0.6-mT hysteresis

– 2.85 mT with 1.35-mT hysteresis

– 3 mT with 0.8-mT hysteresis

– 40 mT with 6.5-mT hysteresis

? Omnipolar response

? Push-pull output

? Industry-standard package and pinout

– SOT-23 package

– X2SON package

? Operating temperature range: –40°C to +125°C

2 Applications

? Cell phones, laptops, or tablet case sensing

? Electricity meter tamper detection

? E-locks

? Smoke detectors

? Home appliance open/close detection

? Medical devices

? IoT systems

? Valve and solenoid position detection

? Contactless diagnostics or activation

3 Description

The TMAG5231 is a 2nd-generation, low-power Halleffect

switch sensor, specifically designed to optimize

the total system cost for compact, battery-operated

consumer and industrial applications.

When the applied magnetic flux density exceeds the

operating point (BOP) threshold, the device outputs a

low voltage. The output stays low until the flux density

decreases to less than the release point (BRP), and

then the device outputs a high voltage. Omnipolar

magnetic response allows the output to be sensitive

to both north and south magnetic fields.

The TMAG5231 is able to operate at very low current

consumption. To achieve 2 μA of current consumption

the device is internally power cycled at a 20-Hz rate.

The TMAG5231 is available in the industry-standard

package and pinout SOT-23 as well as X2SON.

The device operates at a VCC range of 1.65 V to 5.5 V

as well as an extended temperature range of –40°C to

125°C.

TMAG5231屬于傳感器，變送器 > 磁性傳感器 - 開關(guān)（固態(tài)）。美國德州儀器公司制造生產(chǎn)的TMAG5231磁性傳感器 - 開關(guān)（固態(tài)）該系列產(chǎn)品使用固態(tài)技術(shù)來檢測是否存在超過某個特定幅度和/或標(biāo)示的磁場，并提供指示是否存在此類磁場的雙態(tài)輸出。它們與磁簧開關(guān)以及線性或羅盤型固態(tài)器件不同，前者通過使用移動機(jī)械部件來提供類似的功能，后者提供指示所施加磁場的強(qiáng)度和/或方向的可變輸出。