3D Hall (Magnetic sensor) Forum Discussions

Hi,

What is the total calculated sensor drift in mT for temperature range -40 to 125 °C as per table 11 given in the datasheet.

What is LSB12/mT, is it equal to 0.098mT

 

 

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Hello everyone

I am using the W2BW 3 axis hall sensor from the 2go kit and I am picking up some spurious noise on the magnetic field z Measurement. The Figures below show a measurement from a sensor when a parmanent magnet is held toward the sensor six times. As can be seen, while the x and y measurements seem to be clean, there is some spurious noise on the z component.

I thought it might be crosstalk from the I2C communication but I'm not sure.

I am setting the sensor to Master-Controlled Mode and issue an I2C read command at a frequency of 500Hz using the 1-Byte Protocol.

I set the trigger mode in the CONFIG register to 10 (e.g. ADC trigger should be after register 0x5H has been sent).

I also attached an image of the I2C waveform. On the lower graph. 

Sensor OutputsSensor Outputs (Bz Zoomed In)

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Hello everyone

I am trying to use the generic library to interface with the TLI493D-W2BW 3D Hall Sensor from a TI microcontroller.  I implemented the interface but the library fails to initialize the sensor which does not seem to respond to any I2C commands, e.g. it does not generate an ACK on the bus (see also attached image).

I have SDA and SCL pulled up via 1.2kOhm resistors to 3.3V and the /INT is pulled up via a 10kOhm resistor to 3.3V.

I verified that the calls to _POWER_ENABLE and _POWER_DISABLE pull the VDD line of the sensor to 3.3V (LED on) and 0V (LED off) respectively.

I'm not sure if I am missing something obvious here?

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Hello.

I recently purchased Hall sensors (TLE49641KXTSA1) through Mouser.

I request because I need a certification certificate of specification for the hall sensor.

- UL Safety Specification Certification Certificate

Please check. Thank you.

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I'm using a TLV493D 3D mag sensor on I2C using the "Master Command Mode".
It generally works, but not robustly.
I'm polling at 5 second intervals and I hit maybe 5% of the time where the CH/FR indicates that it hasn't finished conversion.
Yes, I can try another read.
Since the MCM mode doesn't actually power down, you can't use the PD flag to check for completion.
Some of the time it indicates that conversion is finished but the binary value of the temperature read is zero (XYZ is good).
Sometimes, it seems to lock up the bus completely.

Yes, I have full recovery methods working, but I'm not impressed.

The reference manual says:

5.6 ADC hang up in Master Controlled or Fast Mode
Problem description
In the Master Controlled Mode (MCM) or the Fast Mode (FM) the ADC conversion may hang up.

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I recently got the Infineon 3D Magnetic Sensor 2Go development board (based on the XMC1100 microcontroller) and I would like to know how to read input from the 3D Magnetic Sensor which is interfaced through I2C. I am new to the Infineon development system, so I do not know how to gather and process input from the sensor.

Here is what I know so far:

The main microcontroller is an Infineon XMC1100-Q024F0064
The 3D Magnetic Sensor is connected to the XMC1100 via I2C
How to program and control the GPIO on the XMC1100
How to use the supplied stand-alone applet to view data from the Sensor
I have the DAVE IDE, the APPs extension, and I am writing my code in C. I need to use DAVE to accomplish my desired end result, but I would be interested to know the Arduino method as well.

Thank you in advance for your help!

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Hello

We are using the TLI493D. For safety issues we implemented a specific power supply for the TLI493D. In this case we can perform a power cycle to have a defined restart. Unfortunately we don't understand how the specification on datasheet page 9 does work:

Normally, a minimum time is needed for succesfull power cycle or reset. But on the datasheet, a max of 400us is defined with ramp. How does that work?
Thanks for any help!

Best regards
Marcel

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