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.

TMAG5231C1G属于传感器，变送器 > 磁性传感器 - 开关（固态）。美国德州仪器公司制造生产的TMAG5231C1G磁性传感器 - 开关（固态）该系列产品使用固态技术来检测是否存在超过某个特定幅度和/或标示的磁场，并提供指示是否存在此类磁场的双态输出。它们与磁簧开关以及线性或罗盘型固态器件不同，前者通过使用移动机械部件来提供类似的功能，后者提供指示所施加磁场的强度和/或方向的可变输出。