ATS642LSHTN-I2-T Datasheet

  • ATS642LSHTN-I2-T

  • Two-Wire True Zero Speed Miniature Differential Peak-Detecti...

  • 430.72KB

  • 16页

  • ALLEGRO   ALLEGRO

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ATS642LSH
Two-Wire True Zero Speed Miniature Differential
Peak-Detecting Gear Tooth Sensor with Continuous Calibration
The ATS642LSH is an optimized Hall effect sensing integrated circuit and magnet
combination that provides a user-friendly solution for true zero-speed digital
gear-tooth sensing in two-wire applications. The sensor consists of a single-shot
molded plastic package that includes a samarium cobalt magnet, a pole piece,
and a Hall effect IC that has been optimized to the magnetic circuit. This small
package, with optimized two-wire leadframe, can be easily assembled and used in
conjunction with a wide variety of gear shapes and sizes.
The integrated circuit incorporates a dual element Hall effect sensor and signal
processing that switches in response to differential magnetic signals created
by ferrous gear teeth. The circuitry contains a sophisticated digital circuit to
reduce magnet and system offsets, to calibrate the gain for air gap independent
switchpoints, and to achieve true zero-speed operation. Signal optimization occurs
at power-up through the combination of offset and gain adjust and is maintained
throughout the operating time with the use of a running mode calibration. The run-
ning mode calibration allows immunity to environmental effects such as microos-
cillations of the target or sudden air gap changes.
The regulated current output is configured for two wire applications and the
sensor is ideally suited for obtaining speed and duty cycle information in ABS
(antilock braking systems). The 1.5 mm Hall element spacing is optimized for fine
pitch gear-tooth-based configurations. The package is lead (Pb) free, with 100%
matte tin leadframe plating.
Package SH, 4-pin Module
12
34
1. VCC
2. No connection
3. Test pin (铿俹at or tie to GND)
4. GND
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
CC
..........................................
28 V
Reverse-Supply Voltage, V
RCC
........................
鈥?8 V
Operating Temperature
Ambient, T
A
,...............................
鈥?0潞C to 150潞C
Maximum Junction, T
J(max)
........................165潞C
Storage Temperature, T
S
..................
鈥?5潞C to 170潞C
Features and Bene铿乼s
鈥?Running mode calibration for continu-
ous optimization
鈥?Single chip IC for high reliability
鈥?Internal current regulator for 2-wire
operation
鈥?Small mechanical size (8 mm
diameter x 5.5 mm depth)
鈥?Precise duty cycle signal over
operating temperature range
鈥?Large operating air gaps
鈥?Automatic Gain Control (AGC)
for air
gap independent switchpoints
鈥?Automatic Offset Adjustment (AOA)
for signal processing optimization
鈥?True zero-speed operation
鈥?Undervoltage lockout
鈥?Wide operating voltage range
Use the following complete part numbers when ordering:
Part Number
ATS642LSHTN-I1-T
ATS642LSHTN-I2-T
I
CC
Typical
6.0 Low to 14.0 High mA
7.0 Low to 14.0 High mA
Packing*
Tape and reel,
13-inch reel
800 pieces/reel
*Contact Allegro for additional packing options.
ATS642LSH-DS
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com

ATS642LSHTN-I2-T 产品属性

  • Current Sensor

  • 800

  • 传感器,转换器

  • 磁性 - 霍尔效应,数字式开关,线性,罗盘 (IC)

  • -

  • 120mV 跳闸,120mV 释放

  • 专用型

  • 4 V ~ 24 V

  • 8.4mA

  • -

  • 数字,开路集电极

  • 轮齿类型

  • -40°C ~ 150°C

  • 4-SIP

  • 4-SIP

  • 带卷 (TR)

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