Quality Standards and Environmental Certifications

ATS19520: Vibration-Tolerant Hall-Effect Transmission Speed and Direction Gear Tooth Sensor IC

Allegro 3-PIN SIP SN Package

ATS19520 Datasheet
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Description

Top Features

The ATS19520 is an advanced Hall-effect integrated circuit (IC) that uses an integrated back-bias magnet to measure the speed and direction of rotating ferrous targets. The package features an integrated capacitor for electromagnetic compatibility (EMC).

Employing intelligent algorithms, the ATS19520 allows for stable operation during vibration and highly dynamic air gap environments common to transmission applications. In addition, the differential sensing offers inherent rejection of interfering common-mode magnetic fields.

The ATS19520 was developed in accordance with ISO 26262:2011 as a hardware safety element out of context with ASIL B capability (pending assessment) for use in automotive safety-related systems when integrated and used in the manner prescribed in the applicable safety manual and datasheet.

The ATS19520 is provided in a 3-pin SIP package (suffix SN) that is lead (Pb) free, with tin leadframe plating. The SN package includes an IC, magnet, and capacitor integrated into a single overmold, with an additional molded lead-stabilizing bar for robust shipping and ease of assembly.

For applications that require no integrated magnet, please see the A19520.  For applications that require a 3-wire speed and direction transmission gear tooth sensor, please see the ATS693.
  • Differential Hall-effect sensor measures ferrous targets with inherent stray field immunity
  • SolidSpeed Digital Architecture™ provides robust, adaptive performance with advanced algorithms that provide vibration immunity over the full target pitch
  • Integrated solution includes a back-bias magnet and capacitor in a single overmolded package
  • ISO 26262:2011 ASIL B with integrated diagnostics and certified safety design process (pending assessment)
  • Two-wire current source output pulse-width protocol supporting speed, direction, and ASIL error reporting
  • EEPROM enables factory traceability

Typical Applications

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Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant 		Part Composition /
RoHS Data 		Comments Samples Check Stock
A19520LUBBTN-FSNHPYUE-A 2-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
A19520LUBBTN-RSNHPYUE-A 2-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ATS19520LSNBTN-RSWHPYU 3-lead SIP -40°C to 150°C -- View Data Contact your
local sales rep		 Check
Distributor Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

Allegro 3-PIN SIP SN Package

Packaging

The ATS19520 is provided in a 3-pin SIP package (suffix SN) that is lead (Pb) free, with tin leadframe plating.

SN Package Documentation

Application Notes

A19520/ATS19520 Sensor IC Outputs Under Vibration Conditions

Transmission Gear Tooth Sensing

Target Design for Hall Transmission Sensors

Giant Magnetoresistance versus Hall-effect: A Comparison of Technologies for Speed Sensor Applications

ATS19520 Sensor IC Outputs Under Vibration Conditions

Methods and Validation of Stray Magnetic Field Mitigation in Magnetic Speed Sensor ICs

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