ATS645LSH-I2TN Allegro Microsystems Inc, ATS645LSH-I2TN Datasheet
ATS645LSH-I2TN
Specifications of ATS645LSH-I2TN
Related parts for ATS645LSH-I2TN
ATS645LSH-I2TN Summary of contents
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... However, Allegro MicroSystems, Inc. assumes no respon- sibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use. Peak-Detecting Gear Tooth Sensor IC Not for New Design ATS645LSH ...
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... Hall-effect integrated circuit that has been optimized to the magnetic circuit. This small package can be easily assembled and used in conjunction with a wide variety of gear shapes and sizes. Continued on the next page… Functional Block Diagram Gain AGC DAC Internal Regulator Test Signals ATS645LSH VCC GND Test ...
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... Wide operating voltage range • Defined power-on state Part Number ATS645LSHTN-I1-T Tape and Reel 13-in. 800 pcs./reel ATS645LSHTN-I2-T Tape and Reel 13-in. 800 pcs./reel * Contact Allegro for additional packing options. Some restrictions may apply to certain types of sales. Contact Allegro for details. ...
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... V 0 → and 5 → mA 25° CC(max) A Test conditions only ATS645LSH-I1 ATS645LSH-I2 ATS645LSH-I1 ATS645LSH-I2 / Ratio of high current to low current t > Target gear speed < 100 rpm R = 100 Ω LOAD LOAD within specifi cation, unless otherwise noted 1 Min. Typ. 4.0 – – ...
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... ATS645LSH OPERATING CHARACTERISTICS (continued) using reference target 60-0, T Characteristic SWITCHPOINT CHARACTERISTICS Rotation Speed Analog Signal Bandwidth Operate Point Release Point CALIBRATION Initial Calibration DAC CHARACTERISTICS Allowable User-Induced Differential Offset 5 FUNCTIONAL CHARACTERISTICS Operational Air Gap Range 6 Maximum Operational Air Gap AG Range 7 Duty Cycle Variation ...
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... ATS645LSH REFERENCE TARGET, 60-0 (60 Tooth Target) Characteristics Symbol Outside Diameter D o Face Width F Circular Tooth Length t Circular Valley Length t v Tooth Whole Depth h t Material Reference Gear Magnetic Gradient Amplitude With Reference to Air Gap 800 700 600 500 400 300 200 ...
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... ATS645LSH Duty Cycle vs. Air Gap 100 RPM 0.5 1 1.5 Air Gap (mm) Duty Cycle vs. Air Gap 1000 RPM 0.5 1 1.5 Air Gap (mm) True Zero Speed Miniature Differential Peak- Detecting Gear Tooth Sensor IC Characteristic Data I1 Trim (º -40 25 150 2 (ºC) A -40 ...
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... ATS645LSH THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information CHARACTERISTIC Package Thermal Resistance *Additional information is available on the Allegro Web site. True Zero Speed Miniature Differential Peak- Detecting Gear Tooth Sensor IC Symbol TEST CONDITIONS* Single-layer PCB with copper limited to solder pads R Two-layer PCB with 3 ...
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... ATS645LSH Hall Technology The gear tooth sensor IC subassembly contains a single-chip differential Hall effect sensor IC, an optimized samarium cobalt pellet, and a fl at ferrous pole piece. The Hall IC supports two Hall elements, which sense the magnetic profi the ferromag- netic target simultaneously, but at different points (spaced ...
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... ATS645LSH Automatic Gain Control (AGC) This feature allows the device to operate with an optimal internal electrical signal, regardless of the air gap (within the AG speci- fi cation). During calibration, the device determines the peak-to- peak amplitude of the signal generated by the target. The gain of the IC is then automatically adjusted ...
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... ATS645LSH Power Supply Protection The device contains an on-chip regulator and can operate over a wide V range. For devices that need to operate from an CC unregulated power supply, transient protection must be added externally. For applications using a regulated line, EMI/RFI pro- tection may still be required. Contact Allegro MicroSystems for information on the circuitry needed for compliance with various EMC specifi ...
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... ATS645LSH DEVICE OPERATION Each operating mode is described in detail below. Power-On When power (V > applied to the device, a short CC CCMIN period of time is required to power the various portions of the IC. During this period, the ATS645 is guaranteed to power-on in the high current state CC(High) Initial Offset Adjust The IC intially cancels the effects of chip, magnet, and installa- tion offsets ...
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... ATS645LSH The device must be operated below the maximum junction temperature of the device Under certain combinations of J(max) peak conditions, reliable operation may require derating sup- plied power or improving the heat dissipation properties of the application. This section presents a procedure for correlating factors affecting operating T ...
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... ATS645LSH F 0.75 8.00±0.05 5.80±0.05 E1 1.70±0.10 4.00±0.10 5.00±0. 24.65±0.10 13.10±0.10 A Copyright ©2004-2009, Allegro MicroSystems, Inc. The products described herein are manufactured under one or more of the following U.S. patents: 5,264,783; 5,389,889; 5,442,283; 5,517,112; 5,581,179; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130; 5,917,320; 6,091,239; 6,100,680; 6,232,768; 6,242,908; 6,265,865; ...