1 Features
• Supply range of 1.65V to 5.5V
• Operating temperature: –40°C to 125°C
• Adjustable BOP from 2mT to 15mT
– Using 2kΩ to 15kΩ resistors
– or 160mV to 1200mV voltage source
• Omnipolar Hall switch
• Push-pull output
• Low power consumption
– 20Hz duty cycle (A1D version): 1.4μA
– 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 rate of 20Hz (A1D version) for the lowest
current consumption, or continuously (A1Z version).
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.