1 Features

• Supply range: 1.65V to 5.5V

• Operating temperature: –40°C to 125°C

• Adjustable BOP threshold through ADJ pin:

– 2mT to 15mT range (A1D, A1Z versions)

– 8mT to 60mT range (D1E version)

• Omnipolar Hall switch

• Push-pull (CMOS) output

• Low power consumption:

– 20Hz duty cycle (A1D version): 1.4μA

– 40Hz duty cycle (D1E version): 2.6μA

– Continuous time (A1Z version): 1.8mA

• Industry-standard SOT-23 package and pinout

2 Applications

• Battery-critical position sensing

• Electricity meter tamper detection

• Cell phone, laptop, or tablet case sensing

• E-locks, smoke detectors, appliances

• Medical devices, IoT systems

• Valve or solenoid position detection

• Contactless diagnostics or activation

3 Description

The TMAG5328 device is a high precision, low-power,

resistor adjustable Hall-effect switch sensor operating

at low voltage.

The external resistor sets the BOP value for device

operation. By following a simple formula, users can

calculate the resistor value needed to set up the right

BOP value for their designs. The Hysteresis value is

fixed and therefore the BRP value is defined as BOPHysteresis.

The adjustable threshold feature of the TMAG5328

can help users prototype designs quickly and make

last minute modifications in case of unexpected

changes, enabling reuse across different platforms.

When the applied magnetic flux density exceeds the

BOP threshold, the device outputs a low voltage. The

output stays low until the flux density decreases to

less than BRP, and then the output drives a high

voltage. By incorporating an internal oscillator, the

device samples the magnetic field and updates the

output at a specified rate. The TMAG5328 features an

omnipolar magnetic response.

The device operates from a VCC range of 1.65V

to 5.5V, and is packaged in a standard SOT-23-6

package.