1 Features

• Supply voltage range:

– From –40°C to 85°C: 1.65V to 5.5V

• In-plane axis of sensitivity

• Magnetic pole detection:

– Omnipolar (±)

• Output type:

– Push-pull (CMOS)

• Active output state (when B > BOP): low (VOL)

• Magnetic operate point (BOP): ±3mT

• Magnetic release point (BRP): ±2.2mT

• Duty cycle operation to minimize ICC

– 5Hz: 0.55μA (preview)

– 40Hz: 2.7μA

• Industry standard package and pinout

– 3-pin SOT-23 (VCC, GND, OUT)

2 Applications

• Door and window sensors

• Appliance door open/close

• Electricity meter tamper detection

• Electronic smart locks

• Smoke detector push buttons

• Food processor accessory detection

• Laptops

3 Description

The TMAG5233 is an in-plane Hall-effect switch

designed to replace TMR, AMR and Reed switches

used in applications where cost is a priority.

The TMAG5233 has an omnipolar magnetic response

and enables the device to react to both north and

south magnetic poles. When the applied magnetic flux

density through the sensor axis of sensitivity exceeds

the operate point threshold (BOP), the device outputs

a low voltage. The output stays low until the magnetic

flux density decreases to less than the release point

threshold (BRP), after which the device outputs a high

voltage.

To minimize power consumption, the TMAG5233 is

internally duty-cycled. The device has a push-pull

(CMOS) output which eliminates the need for an

external pullup resistor, and is available in an industrystandard

SOT-23 package.