Technical difficulties and corresponding solutions
● Rotation blind spot issue:
Difficulty: Traditional vertical field induction chips are sensitive to the direction of magnetic fields, leading to blind spots in triggering.
Solution: Adopting a horizontal field induction design, the magnetic flux line vertically penetrates the induction surface to achieve stable triggering at all angles (0 °~360 °).
●Contradiction between power consumption and response speed:
Difficulty: The sensor response frequency usually drops sharply in low-power mode.
Solution: TMR technology combined with time-sharing power supply, with a static current of only 200nA, while maintaining a high response frequency of 50Hz (Hall sensor only 10-20Hz).
Central role
● No blind spot triggering: N/S pole magnets can be directly triggered, compatible with any magnet installation direction.
● Battery life revolution: The nanoampere level power consumption (200nA) has enabled the standby time of the smart pen to exceed 12 months.
● Production simplification: The full pole design reduces the magnetic polarity calibration steps, increasing production efficiency by 30%.
Key competitiveness of the product
characteristic | TMR13Nx | Traditional Hall sensors |
| Trigger Mode | Full pole type (N/S poles are acceptable) | Monopolar type (requires fixed polarity) |
| static current | 200nA | 1~5μA |
| response frequency | 50Hz | 10~20Hz |
| Blind spot issue | 360 ° no blind spots | There is a directional blind spot |
Comparative analysis of similar competitors
Allegro A321x Hall switch: dependent on vertical magnetic field, triggering angle limited (± 30 ° offset will fail), power consumption 3 μ A.
TDK TMR4901: Supports full polarity but has high power consumption (500nA) and a response frequency of only 30Hz.
Multi dimensional TMR13Nx advantage: The only magnetic sensor that simultaneously achieves 200nA power consumption, 50Hz response, and omnidirectional triggering.
Actual application scenarios
Smart Pen: Pressure sensitive pen wake-up, writing status detection (such as potential solutions for Apple Pencil 3).
Smart home: door and window magnetic sensors, low-power security equipment.
Industrial equipment: motor position detection, contactless switch control.
Product supply situation
Production status: TMR13Nx has passed AEC-Q100 certification and can be ordered on the official website of Multidimensional Technology and authorized agents (such as DeJie Electronics).
Delivery time: 4 weeks for standard model inventory, supporting customized magnetic threshold (± 5mT accuracy)
Conclusion
Multi dimensional technology TMR13Nx innovatively combines "TMR technology+horizontal field induction" to overcome the technological barriers of low power consumption and omnidirectional triggering in smart devices. With the development of IoT devices towards miniaturization and long battery life, this chip is expected to become a new benchmark in the field of magnetic sensing, expanding to trillion dollar markets such as TWS earphones and smart wearables.
