Infineon’s new TLE5501 products are 360° TMR-based angle sensor that detects the orientation of a magnetic field. This is achieved by measuring sine and cosine angle components with Tunneling Magneto Resistance (TMR) elements. These raw signals (sine and cosine) are provided as a differential output signal and can directly be further processed within a micro controller. The large output voltage of the bridge renders any further signal amplification unnecessary.
TLE5501’s application fields range from steering angle applications with the highest functional safety requirements to motors for wipers, pumps and actuators and electric motors in general. TLE5501 is dedicated to any automotive but also industrial and consumer applications like robotics or gimbal.
One major benefit of the Infineon TMR technology is its high sensing sensitivity coming with a high output voltage. So unlike other technologies, a TMR based sensor does not require any additional internal amplifier. Thus the sensor can be connected directly to the microcontroller without any further amplification – saving costs for the end customer. There is yet another cost saving aspect of Infineon’s TMR technology. TMR shows a very low temperature drift reducing external calibration and compensation efforts. In addition, the TMR technology is also well known for its low current consumption.
- Realizing cost-efficient solutions:
- very low temperature drift reducing external calibration and compensation
- large output signals of up to 0.37 V/V
→ direct connection to the microcontroller w/o further amplification
- Precise rotation sensing: typ. angle error <1.0 ° (over Temperature & lifetime)
- Very low current consumption: supply current < 2.5mA
- Magnetic field range (20mT to 100mT)
- DSO8 package for the single sensor → Grade 0
- ISO26262-compliant development ASIL D
- World Record: reaching ASIL D with just one single sensor chip