Dual-die Hall-effect sensor with PWM output and SENT protocol

June 07, 2018 // By Julien Happich
Designed for multidimensional magnetic field measurements in safety-critical automotive applications according to ISO 26262, the HAR 379x sensors come with a PWM output supporting the SENT protocol (according to the latest generation of SAEJ2716).

HAR 379x is the Dual-die SMD package version of the HAC 37xy family using the proprietary Micronas 3D HAL technology for detecting angles in a range between 0° and 360° (end-of-shaft and through-shaft setup) as well as linear movement or position. The devices' versatile programming characteristics and high accuracy make them suitable for gear selector applications. Both the magnetic field amplitude and angle information are transferred via the SENT interface. Delivered in a small eight-pin SOIC8 package, each HAR 379x sensor contains two dies operating fully independently and electrically insulated from one another. Angular error is about ±1.2° at a 30mT amplitude, the sensors have a magnetic field measurement range of 20mT to 100mT.

TDK-Micronas -  www.micronas.com


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