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Changsha Purple Horn E-Commerce Co., Ltd.

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China Automotive camshaft speed sensor ic with true power on state ALLEGRO ATS679LSLTN
China Automotive camshaft speed sensor ic with true power on state ALLEGRO ATS679LSLTN

  1. China Automotive camshaft speed sensor ic with true power on state ALLEGRO ATS679LSLTN

Automotive camshaft speed sensor ic with true power on state ALLEGRO ATS679LSLTN

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Current - Supply 8mA
Voltage - Supply 3.9V~24V
Output Type Open Drain
Description SIP-3 Position, Proximity, Speed (Modules) RoHS
Mfr. Part # ATS679LSLTN-LT-T
Package SIP-3
Model Number ATS679LSLTN-LT-T

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  1. Product Details
  2. Company Details

Product Specification

Current - Supply 8mA Voltage - Supply 3.9V~24V
Output Type Open Drain Description SIP-3 Position, Proximity, Speed (Modules) RoHS
Mfr. Part # ATS679LSLTN-LT-T Package SIP-3
Model Number ATS679LSLTN-LT-T

Product Overview

The ATS679LSL is a self-calibrating True Power-On State (TPOS) camshaft speed sensor IC. It integrates a non-rare-earth back-biasing magnet, a fully synchronous digital IC with EMC protection, and EEPROM for performance optimization and traceability. This sensor offers absolute zero-speed performance and true target state recognition at device power-on. It is designed for automotive camshaft sensing applications, providing a digital output representing the ferromagnetic target profile.

Product Attributes

  • Brand: Allegro MicroSystems
  • Package Type: 3-pin SIP (SL)
  • Lead Plating: 100% matte-tin
  • Material: Lead (Pb) free

Technical Specifications

Characteristic Symbol Test Conditions Min. Typ. Max. Units
Supply Voltage VCC Continuous operation, TJ < TJ(MAX) 3.9 24 V
Supply Current ICC 5 8 10 mA
Output On Voltage VOUT(SAT) IOUT = 5 mA, Output = on state (VOUT = Low), ROUT = 50 500 mV
Output Rise Time tr Measured 10% to 90% of VOUT; RPU = 1 k; VPU = 5 V; ROUT = 50 , COUT = 1.8 nF 4 s
Output Fall Time tf Measured 90% to 10% of VOUT; RPU = 1 k; VPU = 5 V 2.5 5 9 s
Operational Air Gap Range AG TPOS guaranteed; Allegro 8X reference target 0.5 2.75 mm
Power-On Time tPO VCC > VCC(MIN) 1 ms
TPOS Mode Number of mechanical edges after power-on with output switching on TPOS threshold 2 3 edge
Package Thermal Resistance RJA Single-layer PCB, with copper limited to solder pads 134 C/W
Operating Ambient Temperature Range TA -40 150 C
Maximum Junction Temperature TJ(max) 165 C
Storage Temperature Tstg -65 170 C
Part Number Output Polarity Packing
ATS679LSLTN-LT-T Low opposite target tooth Tape and reel, 13-in. reel, 500 pieces per reel
ATS679LSLTN-HT-T High opposite target tooth Tape and reel, 13-in. reel, 500 pieces per reel

Pinout Diagram

Package: SL, 3-Pin SIP

Terminal List:

  • 1: VCC - Supply voltage
  • 2: GND - Ground
  • 3: OUT - Open drain output

Functional Description

The ATS679LSL features a self-calibrating Hall-effect sensor IC, integrated EMC protection components, and a permanent magnet. It senses magnetic field differences induced by ferromagnetic target teeth and valleys, producing a digital output signal representative of the target profile. The device incorporates advanced digital temperature compensation and a voltage regulator for undervoltage lockout and supply noise rejection. Output polarity is selectable (Low or High opposite target teeth).

Operating Modes

  • TPOS Mode: Initial state after power-on, determined by a fixed-gauss TPOS threshold. Remains for at least two edges before transitioning to running mode.
  • Calibration Mode: Uses threshold-based switching with continuous update to capture all teeth and valleys correctly before transitioning to running mode.
  • Running Mode: Uses threshold-based switching with conventional or internal hysteresis for optimized output switching accuracy.

Power Derating

The device must be operated below the maximum junction temperature (TJ(max)). Power dissipation (PD) can be estimated using PD = VIN IIN, T = PD RJA, and TJ = TA + T. The Package Thermal Resistance (RJA) is a key factor in heat dissipation. Calculations are provided to determine maximum allowable power levels and operating voltages at specific ambient temperatures and thermal resistances.


2412061750_ALLEGRO-ATS679LSLTN-LT-T_C19626916.pdf

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Agent,Importer

  • Year Established:

    2009

  • Employee Number:

    300~500

  • Ecer Certification:

    Verified Supplier

Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...

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  • Changsha Purple Horn E-Commerce Co., Ltd.
  • 2332 Kaibin Commercial Plaza, No. 419 Shaoshan Middle Road, Shazitang Street, Yuhua District, Changsha City, Hunan Province
  • https://www.sensorsics.com/

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