3D magnetic sensor are robust for joystick and games consoles

Magnetic sensors available from Infineon Technologies, now include a 3D Hall generation sensor, which has been added by Infineon to its Xensiv 3D magnetic sensor range.

The TLx493D-W2BW is designed for industrial and consumer use. The power-saving 3D magnetic sensor uses the latest 3D Hall generation from Infineon and is housed in a small wafer level package. The company says that its footprint is 87 per cent smaller and 46 per cent lower in height than previous comparable products.

The WLB-5 package measures 1.13 x 0.93 x 0.59mm. It has a low current consumption of 7nA in power down mode, making it suitable for use in applications that previously used resistor-based or optical devices. Advantages offered by magnetic sensors listed by Infineon include high accuracy or robustness against dust and moisture, they are also easy to assemble, says the company.

The low height of the TLI493D-W2BW is helpful in space-critical applications such as brushless DC (BLDC) commutation in micro motors or control elements such as joysticks or game consoles. The sensor enables designs with double-sided PCBs or which require the sensor to be positioned between two PCBs. This allows optimal use of the available space; for example, additional components can be placed above the sensor, Infineon points out.

The new sensor has an integrated wake-up function. There are four variants with pre-configured standard addresses. A higher resolution compared to the previous generation (typically 32.5 to 130microT/LSB12) extends the range of applications. The sensor also supports XY angle measurement.

The update rate is up to 5.7kHz (8.4kHz for XY), while the resolution in low power modes can be adjusted in eight steps between 0.05 and 770Hz. Power consumption in power-down mode is specified at 7nA. The supply current is 3.4mA.

The sensor is also equipped with an I2C interface and a dedicated interrupt pin.

Samples of the new Xensix 3D sensor TLI493D-W2BW are available now. Series production will begin in August 2020.


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