ATS679: Self-Calibrating TPOS Camshaft Speed Sensor

Description

The ATS679LSL is a True Power-On State camshaft sensor incorporating a non-rare-earth back-biasing magnet, advanced fully synchronous digital IC, and EMC protection circuit all in a single sensing solution.

The ATS679 incorporates a single element Hall IC with an optimized custom magnetic circuit that switches in response to magnetic signals induced by a ferromagnetic target. The IC contains a sophisticated digital circuit designed to match the temperature behavior of the IC with the integrated magnet. Signal processing is used to provide zero-speed performance independent of air gap and is designed for the typical operating conditions found in automotive camshaft sensing applications. The resulting output of the device is a digital representation of the ferromagnetic target profile.

The ATS679 is provided in a 3-pin SIP package (SL) that is lead (Pb) free, with 100% matte-tin leadframe plating

Top Features

• Fully synchronous digital logic with Scan Path and IDDQ testing for high quality and reliability
• Chopper stabilization reduces offset drift 
• Absolute zero-speed performance
• SL package provides a fully integrated solution with a non-rare-earth back-biasing magnet and EMC protection circuit
• True target state recognition at device power-on (TPOS)
• EEPROM programming for performance optimization, temperature compensation, and production traceability

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check Stock
ATS679LSLTN-CUST-1-T n/a -20°C to 85°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
ATS679LSLTN-HT-T 3-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
ATS679LSLTN-LT-T 3-lead SIP -40°C to 150°C Yes 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.

SL Package

Packaging

 3-pin SIP (suffix SL)