ATS665LSGTN-T

ATS665LSGTN-T Datasheet

ATS665LSG True Zero Speed, High Accuracy, Gear Tooth Sensor IC

Part	Datasheet
ATS665LSGTN-T	ATS665LSGTN-T (pdf)

Related Parts	Information
ATS665LSGTN	ATS665LSGTN

PDF Datasheet Preview
ATS665LSG True Zero Speed, High Accuracy, Gear Tooth Sensor IC Last Time Buy These parts are in production but have been determined to be LAST TIME BUY. This classification indicates that the product is obsolete and notice has been given. Sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Date of status change August 16, 2010 Deadline for receipt of LAST TIME BUY orders October 29, Recommended Substitutions: For existing customer transition, and for new customers or new applications, refer to the ATS667. NOTE For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative. ATS665LSG True Zero Speed, High Accuracy, Gear Tooth Sensor IC True zero-speed operation Switchpoints independent of air gap High vibration immunity Precise duty cycle signal over operating temperature range Large operating air gaps Defined power-on state Wide operating voltage range Digital output representing target profile Single-chip sensing IC for high reliability Small mechanical size Optimized Hall IC magnetic system 200 us power-on time at gear speed < 100 rpm AGC and reference adjust circuit Undervoltage lockout Package 4-pin SIP suffix SG TheATS665 true zero-speed gear tooth sensor IC is an optimized Hall IC/rare earth pellet configuration designed to provide a user-friendly solution for digital gear tooth sensing applications. The over-molded package, holds together a samarium cobalt pellet, a pole piece and a true zero-speed Hall IC that has been optimized to the magnetic circuit. This small package can be easily assembled and used in conjunction with gears of various shapes and sizes. The device incorporates a dual element Hall IC that switches in response to differential magnetic signals created by a ferromagnetic target. The IC contains a sophisticated compensating circuit designed to reduce the detrimental effects of magnet and system offsets. Digital processing of the analog signal provides zero speed performance independent of air gap and also dynamic adaptation of device performance to the typical operating conditions found in automotive applications reduced vibration sensitivity . High-resolution peak detecting DACs are used to set the adaptive switching thresholds of the device. Hysteresis in the thresholds reduces the negative effects of any anomalies in the magnetic signal associated with the targets used in many automotive applications. Not to scale Continued on the next Functional Block Diagram HALL AMP Vsig AUTOMATIC GAIN CONTROL PDAC NDAC THRESHP REFERENCE GENERATOR PPEAK THRESHN NPEAK INTERNAL REGULATOR THRESHOLD COMPARATOR THRESH LOGIC OUTPUT Output Transisto r Current Limit ATS665LSG True Zero Speed, High Accuracy, Gear Tooth Sensor IC Description continued This ATS665’s ability to provide tight duty cycle at high speeds and over a wide temperature range makes it ideal for transmission and industrial speed applications. The ATS665 is available in the SG package in the automotive temperature range, -40° to 150° L . It is lead Pb free with 100% matte tin leadframe plating Selection Guide Packing* ATS665LSGTN-T 800 pieces per reel *Contact for additional packing options Absolute Maximum Ratings VCC VRCC IRCC IOUT TA TJ max Tstg Notes See Power Derating section

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ATS665LSG True Zero Speed, High Accuracy, Gear Tooth Sensor IC

Last Time Buy

These parts are in production but have been determined to be LAST TIME BUY. This classification indicates that the product is obsolete and notice has been given. Sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Date of status change August 16, 2010 Deadline for receipt of LAST TIME BUY orders October 29,

Recommended Substitutions:

For existing customer transition, and for new customers or new applications, refer to the ATS667.

NOTE For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative.

ATS665LSG True Zero Speed, High Accuracy, Gear Tooth Sensor IC

True zero-speed operation Switchpoints independent of air gap High vibration immunity Precise duty cycle signal over operating temperature range Large operating air gaps Defined power-on state Wide operating voltage range Digital output representing target profile Single-chip sensing IC for high reliability Small mechanical size Optimized Hall IC magnetic system 200 us power-on time at gear speed < 100 rpm AGC and reference adjust circuit Undervoltage lockout

Package 4-pin SIP suffix SG

TheATS665 true zero-speed gear tooth sensor IC is an optimized Hall IC/rare earth pellet configuration designed to provide a user-friendly solution for digital gear tooth sensing applications. The over-molded package, holds together a samarium cobalt pellet, a pole piece and a true zero-speed Hall IC that has been optimized to the magnetic circuit. This small package can be easily assembled and used in conjunction with gears of various shapes and sizes.

The device incorporates a dual element Hall IC that switches in response to differential magnetic signals created by a ferromagnetic target. The IC contains a sophisticated compensating circuit designed to reduce the detrimental effects of magnet and system offsets. Digital processing of the analog signal provides zero speed performance independent of air gap and also dynamic adaptation of device performance to the typical operating conditions found in automotive applications reduced vibration sensitivity . High-resolution peak detecting DACs are used to set the adaptive switching thresholds of the device. Hysteresis in the thresholds reduces the negative effects of any anomalies in the magnetic signal associated with the targets used in many automotive applications.

Not to scale

Continued on the next

Functional Block Diagram

HALL AMP

Vsig

AUTOMATIC GAIN

CONTROL

PDAC

NDAC

THRESHP REFERENCE GENERATOR PPEAK

THRESHN

NPEAK

INTERNAL REGULATOR

THRESHOLD COMPARATOR

THRESH LOGIC

OUTPUT

Output Transisto r

Current Limit

ATS665LSG True Zero Speed, High Accuracy, Gear Tooth Sensor IC

Description continued This ATS665’s ability to provide tight duty cycle at high speeds and over a wide temperature range makes it ideal for transmission and industrial speed applications. The ATS665 is available in the SG package in the automotive temperature range, -40° to 150° L . It is lead Pb free with 100% matte tin leadframe plating

Selection Guide

Packing*

ATS665LSGTN-T
800 pieces per reel
*Contact for additional packing options

Absolute Maximum Ratings

VCC VRCC IRCC IOUT

TA TJ max

Tstg

Notes See Power Derating section

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ATS665LSGTN-T Datasheet file may be downloaded here without warranties.

Datasheet ID: ATS665LSGTN-T 516126