| VM721D1·VM721V1, 2-pin type AMR sensor IC
| Meets AEC-Q100H and ISO26262 ASIL-B(D) standards
Speed and direction measurement for ECU, ABS, and ESC

Honeywell Sensing & IoT business unit announced on the 25th that it has released a 2-pin AMR (Anisotropic MagnetoResistance) sensor IC capable of detecting the speed and direction of a ring magnet encoder target.

Following the 4-pin AMR sensor IC released earlier this year, Honeywell has newly launched 2-pin type products, the VM721D1 and VM721V1.

The Honeywell 2-pin AMR sensor IC has a higher sensitivity than a Hall sensor due to its AMR bridge structure. It provides more accurate performance and faster response speeds, while offering design flexibility with a larger air gap and enabling improved assembly tolerances.

Since it is not affected by the stimulus size, one sensor can be paired with another ring magnet for use.

It does not require complex correction algorithms and provides stable output even when system vibration, runout, or sudden changes in air gap occur.

AMR signals are more sensitive than Hall sensors and do not require Automatic Gain Control (AGC) or chopper stabilization devices, which can cause jitter during operation.

The sensor IC is equipped with a built-in capacitor for EMC protection, eliminating the need for an external capacitor in most applications. Wide lead wires can be welded for easier mounting tailored to the user's needs.

VM721D1 and VM721V1 can be used for speed and position measurement applications of transmissions, engine cranks, and wheel speeds.

The two products measure speed and direction for the Electronic Control Unit (ECU) for efficiency, comfort, and gear shifting in automobiles and off-road transport, as well as for the Anti-lock Brake System (ABS) and Electronic Stability Control (ESC).

To support these key applications, it meets the functional safety standards of AEC-Q100H, the automotive semiconductor quality standard of the Automotive Electronic Council (AEC), and ISO 26262 ASIL-B(D), the international standard for automotive functional safety.

In addition, it is easy to install and use as it does not require any additional calibration by the user.