Large Air Gap, GMR Transmission Speed and Direction Sensor IC with ASIL Compliance

A19571

The A19571 provides high-sensitivity speed and direction sensing for ring magnets, using GMR technology for extended air gap performance and ASIL compliance for functional safety in automotive transmission applications.

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Product Details

Top Features

GMR technology delivers high magnetic sensitivity for large air gaps and minimal jitter
SolidSpeed Digital Architecture™ provides robust, adaptive performance with advanced algorithms that provide vibration immunity over the full target pitch
Flexible sensing orientation allows parallel or perpendicular placement to the magnet
ISO 26262 ASIL B with integrated diagnostics and certified safety design process (pending assessment)
Two-wire current source output with protocol options
EEPROM enables traceability throughout product life cycle

Target Application

Transmission
2W-xEV Power

Part Number Specifications and Availability

Differential Speed Sensor System Solutions

Seth Prentice, Strategic Marketing Manager for Allegro MicroSystems Speed Sensor IC group, discusses IC solutions for designing speed sensing applications including automotive transmissions, washing machine drum speeds, and fork lift positioning requiring reliable consistent output signals.