The TMAG5231 is a 2nd-generation, low-power Hall-effect switch sensor, specifically designed to optimize the total system cost for compact, battery-operated consumer and industrial applications.
When the applied magnetic flux density exceeds the operating point (BOP) threshold, the device outputs a low voltage. The output stays low until the flux density decreases to less than the release point (BRP), and then the device outputs a high voltage. Omnipolar magnetic response allows the output to be sensitive to both north and south magnetic fields.
The TMAG5231 is able to operate at very low current consumption. To achieve 2 μA of current consumption the device is internally power cycled at a 20-Hz rate.
The TMAG5231 is available in the industry-standard package and pinout SOT-23 as well as X2SON.
The device operates at a VCC range of 1.65 V to 5.5 V as well as an extended temperature range of –40°C to 125°C.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TMAG5231 | SOT-23 (3) | 2.92 mm × 1.30 mm |
X2SON (4) | 1.10 mm × 1.40 mm |
Changes from Revision C (June 2022) to Revision D (September 2022)
Changes from Revision B (March 2022) to Revision C (June 2022)
Changes from Revision A (November 2021) to Revision B (March 2022)
VERSION | TYPICAL THRESHOLD |
TYPICAL HYSTERESIS |
MAGNETIC RESPONSE |
OUTPUT TYPE |
SENSOR ORIENTATION |
SAMPLING RATE |
PACKAGES AVAILABLE |
---|---|---|---|---|---|---|---|
TMAG5231A1C | 1.8 mT | 0.6 mT | Omnipolar active Low | Push-pull | Z | 10 Hz | SOT-23 X2SON |
TMAG5231A2D | 1.8 mT | 0.6 mT | Omnipolar active High | Push-pull | Z | 20 Hz | SOT-23 X2SON |
TMAG5231B1D | 2.85 mT | 1.35 mT | Omnipolar active Low | Push-pull | Z | 20 Hz | SOT-23 X2SON |
TMAG5231C1D | 3 mT | 0.8 mT | Omnipolar active Low | Push-pull | Z | 20 Hz | SOT-23 X2SON |
TMAG5231C1G | 3 mT | 0.8 mT | Omnipolar active Low | Push-pull | Z | 216 Hz | SOT-23 X2SON |
TMAG5231H1D | 40 mT | 6.5 mT | Omnipolar active Low | Push-pull | Z | 20 Hz | SOT-23 X2SON |
PIN | I/O | DESCRIPTION | ||
---|---|---|---|---|
NAME | SOT-23 (3) | X2SON (4) | ||
GND | 3 | 1 | — | Ground reference |
OUT | 2 | 3 | O | Omnipolar output that responds to north and south magnetic poles |
VCC | 1 | 4 | — | 1.65-V to 5.5-V power supply. TI recommends connecting this pin to a ceramic capacitor to ground with a value of at least 0.1 µF. |
NC | — | 2 | — | No connect. This pin is not connected to the silicon. It should be left floating or tied to ground. It should be soldered to the board for mechanical support. |
Thermal Pad | — | PAD | — | No connect. This pin should be left floating or tied to ground. It should be soldered to the board for mechanical support. |