PCB-Much less 3D Magnetic Sensor With Multi-Directional Measurement Functionality


A31316 is a versatile and strong 3D Magnetic Sensor for safety-critical programs. It’s able to withstanding excessive temperatures and moisture with out degradation in efficiency.

Allegro has introduced A31316, a PCB-less 3D Corridor-effect place sensor that is available in a small 4 × 4 mm physique PCB-less package deal. The IC contains the business’s quickest SENT protocol with 0.5 µs to 10 µs tick occasions and features a pulse-width modulation (PWM) interface with 125 Hz to 16 kHz provider for a easy digital interface to microcontrollers. The A31316 is good for automotive security and superior driver help programs (ADAS) purposes that require excessive ranges of flexibility and dependable efficiency in harsh circumstances with excessive vibrations such because the powertrain of autos and demanding industrial purposes that require linear or rotary sensing.

The A31316 sensor integrates the die and capacitors in a single package deal to handle the necessity for high-performance, compact-position sensors which are strong. The A31316 can allow versatile integration for precision contactless place sensing. It’s Allegro’s first magnetic place sensor to supply multi-direction measurement in a PCB-less SIP package deal. The A31316 gives designers with a configurable sign path and versatile linearization for end-of-line calibration to optimize measurement accuracy.

“Autos have gotten extra advanced with every passing 12 months, and the variety of sensors wanted in trendy security and ADAS purposes is rising quickly. System designers are on the lookout for choices which are each versatile and strong, and the A31316 meets that want,” says Scott Milne, Enterprise Line Director for Place Sensors at Allegro. “It’s an incredible possibility for safety-critical purposes—reminiscent of restraint and shifter programs, parking locks, and inhibitor switches—or for difficult purposes—reminiscent of transmissions and braking programs, the place warmth and moisture can degrade efficiency. We’re excited to allow the following era of car security programs with this know-how.”

The A31316 integrates a Manchester interface for programming the EEPROM by means of the output pin, which eliminates the necessity for a separate programming interface. Furthermore, the sensor employs the business’s quickest SENT protocol with 0.5 µs to 10 µs tick occasions. The A31316 is obtainable in a three-pin PCB-less SIP package deal.


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