Texas Instruments TMAG5233 In-Plane Hall-Effect Switch
Texas Instruments TMAG5233 In-Plane Hall-Effect Switch is designed to replace TMR, AMR, and Reed switches used in applications where cost is a priority. The TMAG5233 has an omnipolar magnetic response, enabling 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.
The Texas Instruments TMAG5233 is internally duty-cycled to minimize power consumption. Its push-pull (CMOS) output eliminates the need for an external pull-up resistor and is available in an industry-standard SOT-23 package.
Features
- Supply voltage range from –40°C to 85°C is 1.65V to 5.5V
- The in-plane axis of sensitivity
- Magnetic pole detection of omnipolar (±)
- Output type is push-pull (CMOS)
- Active output state (when B > BOP) of low (VOL)
- Magnetic operate point (BOP) of ±3mT
- Magnetic release point (BRP) of ±2.2mT
- Duty cycle operation to minimize ICC
- 5Hz: 0.55µA (preview)
- 40Hz: 2.7µA
- A 3-pin SOT-23 (VCC, GND, OUT) industry-standard package
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
Functional Block Diagram
Magnetic Flux Density Direction
Related Development Tool
Texas Instruments TMAG5x33EVM Switch Evaluation Modules (EVMs)
It provides an easy-to-use platform for evaluating or prototyping the TMAG5x33 Hall-effect switches.
Published: 2024-12-16
| Updated: 2024-12-23