ATS612LSG

更新时间： 2024-11-07 21:53:43

品牌	Logo	应用领域
急速微 - ALLEGRO		传感器
页数	文件大小	规格书
15页	409K
描述
DYNAMIC, SELF-CALIBRATING, PEAK-DETECTING, DIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSOR

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ATS612LSG 数据手册

ATS612LSG

DYNAMIC, SELF-CALIBRATING,

PEAK-DETECTING, DIFFERENTIAL

HALL-EFFECT GEAR-TOOTH SENSOR

The ATS612LSG gear-tooth sensor is a peak-detecting device

that uses automatic gain control to provide extremely accurate gear

edge detection down to low operating speeds. Each sensor module

consists of an over-molded package, which holds together a

samarium-cobalt magnet, 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.

The sensor incorporates a dual-element Hall IC that switches in

response to differential magnetic signals created by ferrous targets.

The sophisticated processing circuitry contains a 5-bit D/A

converter that self-calibrates (normalizes) the internal gain of the

device to minimize the effect of air-gap variations. The patented

peak-detecting filter circuit eliminates magnet and system offsets

and has the ability to discriminate relatively fast changes such as

those caused by tilt, gear wobble, and other eccentricities, yet

provides stable operation to extremely low RPM.

This sensor system is ideal for use in gathering speed, position,

and timing information using gear-tooth-based configurations. The

ATS612 is particularly suited to those applications that require

extremely accurate duty cycle control or accurate edge detection

such as in automotive crankshaft applications. The lower vibration

sensitivity also makes this device extremely useful for transmission

speed sensing.

Pin 1: Supply

Pin 2: Output

Pin 3: Capacitor

Pin 4: Ground

ABSOLUTE MAXIMUM RATINGS

FEATURES AND BENEFITS

ꢀ

Fully Optimized Differential Digital Gear-Tooth Sensor

Single-Chip Sensing IC for High Reliability

Digital Output Representing Target Profile

Extremely Low Timing Accuracy Drift with Temperature

Large Operating Air Gaps

Supply Voltage, V_CC..............................…. 24 V

Reverse Supply Voltage, V_RCC................. –16 V

Output OFF Voltage, V_OUT......................... 24 V

Continuous Output Current, I_OUT............ 25 mA

Reverse Output Current, I_ROUT............... 50 mA

Package Power Dissipation, P_D...... See Graph

Operating Temperature Range,

Small Mechanical Size

Optimized Magnetic Circuit

Patented Peak-Detecting Filter:

T_A.............................. –40°C to +150°C

Storage Temperature, T_S...................... +170°C

Maximum Junction Temperature,

80 µs Typical Power-On Time

<10 RPM Operation (single-tooth target)

Uses Small Value Ceramic Capacitors

Under-Voltage Lockout

T_J.................................................. 165° C

ꢀ

Wide Operating Voltage Range

Defined Power-On State

ATS612G-DS Rev. 0a

12 3 4 5 6 7...15

中文翻译

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