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.