Datasheet > ATS617LSG

ATS617LSG

更新时间： 2024-09-20 06:38:39

品牌	Logo	应用领域
急速微 - ALLEGRO		传感器
页数	文件大小	规格书
16页	488K
描述
Dynamic, Self-Calibrating, Peak-Detecting, Differential Hall Effect Gear Tooth Sensor IC

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ATS617LSG 数据手册

ATS617LSG

Dynamic, Self-Calibrating, Peak-Detecting, Differential

Hall Effect Gear Tooth Sensor IC

Features and Benefits

Description

▪ Self-calibrating for tight timing accuracy

▪ First-tooth detection

The ATS617 gear-tooth sensor IC is a peak-detecting device

that uses automatic gain control and an integrated capacitor

to provide extremely accurate gear edge detection down to

low operating speeds. Each device consists of a high-tem-

perature plastic shell that holds together a samarium-cobalt

pellet, a pole piece, and a differential open-collector Hall IC

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.

▪ Immunity to air gap variation and system offsets

▪ Immunity to signature tooth offsets

▪ Integrated capacitor provides analog peak and

valley information

▪ Low timing-accuracy drift with temperature changes

▪ Low radiated emissions

▪ Integrated, series resistor on VCC pin for improved

transient immunity

The technology used for this device is Hall-effect based. The

device incorporates a dual-element Hall IC that switches in

response to differential magnetic signals created by fer-

romagnetic targets. The sophisticated processing circuitry

contains an A-to-D converter that self-calibrates (normal-

izes) the internal gain of the device to minimize the effect of

air gap variations. The patented peak-detecting filter circuit

provides immunity to magnet and system offsets and has the

ability to discriminate relatively fast changes such as those

caused by tilt, gear wobble, and eccentricities. This easy-to-

integrate solution provides first falling edge detection and

stable operation to extremely low rpm. The ATS617 can be

used as a replacement for the ATS616.

▪ Large air gap capability

▪ Small, integrated package

▪ Optimized magnetic circuit

▪ Undervoltage lockout (UVLO)

▪ Wide operating voltage range

Package: 4-pin SIP (suffix SG)

The ATS617 is ideal for use in systems that gather speed,

position, and timing information using gear-tooth-based

Continued on the next page…

Not to scale

Functional Block Diagram

VCC

R_S

Voltage

Regulator

Power-On

Logic

UVLO

Tooth and Valley

Comparator

VOUT

Gain

Hall

Amp

Track and

Hold

Current

Reference

Generator

Limit

Hall

Amp

Track and

Hold

GND

TEST

(Recommended)

ATS617LSG-DS, Rev. 1

12 3 4 5 6 7...16

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与ATS617LSG相关器件

型号	品牌	获取价格	描述	数据表
ATS617LSGTN-T	ALLEGRO	获取价格	Dynamic, Self-Calibrating, Peak-Detecting, Differential Hall Effect Gear Tooth Sensor IC
ATS622LSB	ALLEGRO	获取价格	TRUE ZERO-SPEED HALL-EFFECT GEAR-TOOTH SENSOR
ATS622LSB*	ALLEGRO	获取价格	True Zero Speed Hall Effect Adaptive Gear Tooth Sensors
ATS625LSG	ALLEGRO	获取价格	True Zero-Speed Low-Jitter High Accuracy Gear Tooth Sensor
ATS625LSGTN	ALLEGRO	获取价格	True Zero-Speed Low-Jitter High Accuracy Gear Tooth Sensor
ATS625LSGTN-T	ALLEGRO	获取价格	True Zero-Speed Low-Jitter High Accuracy Gear Tooth Sensor
ATS625LSGTN-T3	ALLEGRO	获取价格	True Zero-Speed Low-Jitter High Accuracy Gear Tooth Sensor
ATS627LSG	ALLEGRO	获取价格	True Zero Speed, Low Jitter, High Accuracy Position Sensor IC
ATS627LSGTN-T	ALLEGRO	获取价格	True Zero Speed, Low Jitter, High Accuracy Position Sensor IC
ATS630LSA	ETC	获取价格	Analog IC

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