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TDK introduces new stray-field robust 3D-magnetic position sensor with capabilities for processing external signals
  • HAL/HAR 3936-4100 is a high-precision, stray-field robust Hall-effect 3D-position sensor with low-power functions
  • The sensor offers the possibility to read-in external digital signals (PWM & Switch) that can be transmitted via SENT interface together with the magnetic position information
  • Main target applications are stray-field robust steering column switches, shifter and alternative joystick-like setups

TDK Corporation (TSE:6762) further extends its renowned Micronas 3D HAL®-position sensor family with the HAL/HAR 3936*, the newest addition to its distinguished Hall-effect-based 3D-position sensor portfolio. Developed with a focus on meeting the stringent requirements of modern automotive and industrial applications, the HAL/HAR 3936 represents a significant advancement in magnetic position processing technology. Thanks to the sensor’s versatile programming characteristics and its high accuracy, the HAL/HAR 3936 is a potential solution for steering column switches, gear selectors, brake pedal position sensors, or brake stroke sensors.** Samples are already available. Start of production is planned for the end of 2024.

Designed to address the industry's demand for robust 3D position sensors and compliance with ISO 26262 standards, the HAL/HAR 3936 offers a reliable solution for various applications, including steering column switches. Noteworthy features include a power-saving low-power mode, facilitating direct connection to a vehicle's battery for improved efficiency. Furthermore, the sensor's integrated SENT interface enables seamless transmission of external digital signals, enhancing its versatility in diverse operational environments.

The HAL/HAR 3936 is available in a dual-die variant, the HAR 3936-4100, engineered to provide enhanced redundancy and reliability. Utilizing a stacked-die architecture, this variant ensures synchronous measurements of magnetic signals by occupying the same magnetic field position. As a result, it delivers high-resolution position measurements, meeting the stringent accuracy requirements of modern applications.

With customer-configurable PWM or SENT outputs, the HAL/HAR 3936 offers flexibility to adapt to various application needs. In SENT mode, the sensor adheres to SAE J2716 rev. 4 standards, with configurable parameters such as tick time and frame format. Additionally, the sensor features two functional modes - application mode and low-power mode - selectable via an input signal, enabling optimized power consumption based on operational requirements.

In application mode, the HAL/HAR 3936 excels in measuring a 360° angular range, linear movements, and stray-field robust 3D position information of a magnet. The stray-field robust 3D modes, together with the possibility to read external signals, enable a new robustness of steering column switch detection that was never available before. Leveraging Hall technology, the sensor effectively suppresses external magnetic stray fields, ensuring accurate measurements in any scenario.

The HAL/HAR 3936 complies with SEooC (Safety Element out of Context) ASIL C standards according to ISO 26262:2018, ensuring compatibility with automotive safety requirements up to ASIL D. Designed for operation in harsh environments, the sensor operates flawlessly within an ambient temperature range from –40 °C to 150 °C, making it suitable for automotive and industrial applications.

Available in a SOIC8 SMD package as a single-die device and in a SSOP16 SMD package for the dual-die version, the HAL/HAR 3936 offers a reliable and versatile solution for demanding 3D position sensing applications.

Glossary

  • Stray-field compensation: Modern Hall-effect sensors must be insensitive against disturbing fields generated by e-motors or power lines in hybrid or electric vehicles (xHEV)

Main applications**

  • Steering column switches
  • Gear selectors
  • Brake pedal position sensor
  • Brake stroke sensor

Main features and benefits

  • Stray-field robust 3D position detection, 360° rotary and linear position detection up to 35 mm
  • Capturing of external digital signals (like PWM and switch) and transmission of those signals via SENT
  • Calculation of two angles and transmission on two separate output pins as PWM signals
  • Support of various SENT frame formats, like H1.A7, F1.1, F1.2 and F2.4
  • High robustness against mechanical misalignment between sensor and magnet in rotary setups
  • Optimized design supporting rotary setups together with ferrite magnets
  • SEooC ASIL C ready according to ISO 26262:2018 to support Functional Safety applications (The device can be integrated into automotive safety-related systems up to ASIL D)
  • PWM and SENT output
  • Additional switch output (open-drain)
  • Suitable for automotive applications, due to a wide ambient temperature range from -40 °C to 150 °C

 

2024060402 / 04.06.2024 / Electronic-components / TDK Corporation /

TDK introduces new stray-field robust 3D-magnetic position sensor with capabilities for processing external signals

TDK announces new 3-axis accelerometer, finalizing transition of SmartAutomotive™ non-safety product family to 105°C

TDK introduces 3D HAL® technology-based position sensor with analog output and SENT interface

TDK offers mechanically decoupled ultrasonic modules for collision avoidance
TDK Corporation presents the ultrasonic sensor module USSM1.0 PLUS-FS, in which the sensor element is mechanically decoupled from the housing. This makes the IP65/67 protected sensor with the order number B59110W2111W032 immune to external mechanical vibrations that can falsify the measurement result. The module, which is supplied with a nominal voltage of 12 V, can be mounted in a front chassis via a M19 thread with a locking nut or via snap hooks.

TDK offers compact high-current chokes for automotive and industrial applications
TDK Corporation presents the B82559A*A033 series of new shielded EPCOS ERU33 high-current chokes for through-hole mounting. Designed for very high saturation currents from 32 A to 83 A at 100 °C, the six new types cover a range of inductance values from 3.2 µH to 10 µH.

EMC Components: TDK develops industry’s first high-reliability chip beads for automotive
TDK Corporation announced the development and mass production of the MMZ1608-HE series of high-reliability chip beads for automotive use, compatible with high-durability solder in 150 ℃ environments.

Surge protection: Failsafe chip varistors for automotive battery lines
TDK Corporation presents a new range of Open Mode chip varistors for electronic automotive assemblies that are directly connected to the battery. The new chip varistors offer reliable protection against transient surge voltages according to ISO 7637-2, and meet the failsafe requirements according to the VW standard VW 80808. Even when subject to excessive bending stress, short-circuits are avoided, which is particularly important for unswitched battery terminals (e.g. terminal 30).

Inductors: Compact dual inductors with high saturation current
TDK Corporation has extended its range of dual inductors to include the new EPCOS series B82477D6*. The seven series types cover an inductance range from 2 x 3.9 µH to 2 x 47 µH and are designed for maximum rated currents from 2.83 A to 7.05 A. A special feature of the inductors, which are certified according to AEC-Q200 and compatible with RoHS, are the high saturation currents of up to 16.1 A.

Aluminum electrolytic capacitors: Compact design with high ripple current capability
TDK Corporation (TSE:6762) presents the new B43707* and B43727* series of EPCOS aluminum electrolytic capacitors with screw terminals. They are designed for rated voltages of between 400 V DC and 450 V DC and cover a capacitance range from 1800 µF to 18,000 µF.

TDK announces world’s first MIPI standard SoundWire® microphone
TDK Corporation (TSE: 6762) introduces the world’s first MIPI Standard SoundWire® microphone for mobile, IoT and other consumer devices. This multimode microphone pushes the boundaries of digital microphone acoustic performance while providing advanced feature sets with very low power.

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