SemiMedia SemiMedia
  • Breaking News
  • MarketWatch
  • Distribution
  • Manufacturer
  • Video
  • About us
Home › Manufacturer › TDK brings redundancy to its TMR angle sensor portfolio and aligns with ASIL D safety standard
  • 0

TDK brings redundancy to its TMR angle sensor portfolio and aligns with ASIL D safety standard

SemiMediaEdit
July 2, 2020

TDK Corporation announced the expansion of its tunnel-magnetoresistance (TMR) angle sensor portfolio with the new digital TAD4140 sensor. Designed for demanding automotive and industrial applications, compared to TDK’s existing digital angle sensor - the TAD2141 - the new TAD4140 features full redundancy with two signal processor units and 2x2 TMR bridges in a single TSSOP16 package. Both angle sensors are capable of contactless sensing up to 360 degrees within an ambient temperature range of -40 °C up to +150 °C, making the device suitable for motor-control applications such as Brushless DC (BLDC) motor commutation in electric power assisted steering (EPAS) systems.

The various internal diagnostic features of TDK's digital angle sensor portfolio make both the TAD2141 and TAD4140 compatible with stringent automotive applications where functional safety is required, with the TAD4140 meeting the requirements of Automotive Safety Integrity Level D (ASIL D), and able to support fail-operation mode due to its electrically-isolated signals, high signal availability, and high-diagnostic coverage.

TDK brings redundancy to its TMR angle sensor portfolio and aligns with ASIL D safety standard-SemiMedia

Digital outputs support functionality such as Hall emulation (UVW), encoder up to 12 bits (ENC), incremental encoder (ABZ), pulse width modulation (PWM), and Serial Peripheral Interface (SPI). Due to its built-in redundancy, the TAD4140 can simultaneously give two different outputs such as ABZ and ENC to calculate speed, direction, and motor position.

This means the sensor can be employed in applications with two electronic control units (ECUs) working in a master/slave configuration, for example in applications like steering motor position detection.

TDK's state-of-the-art TMR technology can be used in combination with a dedicated application-specific integrated circuit (ASIC) including an embedded digital signal processor (DSP). With integrated static and dynamic calibration functions, both the TAD2141 and TAD4140 can compensate for drifts in gain, offset, or orthogonality. The sensors guarantee an angle accuracy of ±0.35 degrees, achieving the industry’s highest accuracy for angle error of only ±0.05 degrees at room temperature. Mechanical non-idealities including magnet tilting or magnet displacement can also be compensated for, allowing wider assembly tolerances for the mechanical components.

Both sensors are molded in a TSSOP16 package with identical pinout on one side of the package, giving customers design flexibility and simple switching to the redundant version (TAD4140) if required.

Samples of the TAD4140 are available now. Start of production is planned for the fourth quarter of 2020.

Related

electronic components news TAD2141 TAD4140 TDK TMR angle sensor
Diodes launches low-voltage automotive buck converter with integrated programmable PFM/PWM to improve efficiency
Previous
Micron plans to shift its DRAM and flash memory target market to data center market
Next

All Comments (0)

Back
No Comment.

Top Post

Fire broke out at AKM factory in Japan
Qualcomm ranked first in the world's top ten IC design companies
Mouser Electronics expands to the Philippines with local customer service center
Analyze the key factors and prospects of electronic components shortage from the perspective of wafer industry
What is the root cause of the decline of the Japanese semiconductor industry?
ST releases price increase notice

Subscribe SemiMedia

Please check your E-mail to confirm the subscribtion.

Related posts

Infineon launches PSOC 4100T Plus MCU with integrated multi-sensing for HMI and control

Infineon launches PSOC 4100T Plus MCU with integrated multi-sensing for HMI and control

May 15, 2025
0
Murata to expand Vietnam plant to meet rising demand for automotive inductors

Murata to expand Vietnam plant to meet rising demand for automotive inductors

May 15, 2025
0
Samsung to outsource low-end photomasks to focus on advanced lithography

Samsung to outsource low-end photomasks to focus on advanced lithography

May 15, 2025
0
Top 10 OSAT vendors post modest growth in 2024 amid rising demand for advanced packaging

Top 10 OSAT vendors post modest growth in 2024 amid rising demand for advanced packaging

May 14, 2025
0
Copyright © 2017-2025 SemiMedia. Designed by nicetheme.
  • Please set up your first menu at [Admin -> Appearance -> Menus]
  • electronic components news
  • Electronic components supplier
  • Electronic parts supplier
  • Infineon
  • Electronic component news
  • Renesas
  • Vishay
  • STMicroelectronics
  • NXP
  • TDK

SemiMediaEdit

Administrator