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参数资料
| 型号： | ATS645LSH-I2TN |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 12/14页 |
| 文件大小： | 381K |
| 描述： | IC SENSOR GEAR TOOTH 4-SIP |
| 标准包装： | 800 |
| 传感范围： | 120mV 跳闸，120mV 释放 |
| 类型： | 专用型 |
| 电源电压： | 4 V ~ 24 V |
| 电流 - 电源： | 8.4mA |
| 输出类型： | 数字，开路集电极 |
| 特点： | 轮齿类型 |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 4-SIP |
| 供应商设备封装： | 4-SIP |
| 包装： | 带卷 (TR) |
True Zero Speed Miniature Differential Peak-
Detecting Gear Tooth Sensor IC
ATS645LSH
11
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
DEVICE OPERATION
Each operating mode is described in detail below.
Power-On
When power (V
CC
> V
CCMIN
) is applied to the device, a short
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, I
CC(High)
.
Initial Offset Adjust
The IC intially cancels the effects of chip, magnet, and installa-
tion offsets. Once offsets have been cancelled, the digital track-
ing DAC is ready to track the signal and provide output switch-
ing. The period of time required for both Power-On and Initial
Offset Adjust is de ned as the Power-On Time.
Calibration Mode
The calibration mode allows the IC to automatically select
the proper signal gain and continue to adjust for offsets. The
AGC is active, and selects the optimal signal gain based on the
amplitude of the V
PROC
signal. Following each adjustment to
the AGC DAC, the Offset DAC is also adjusted to ensure the
internal analog signal is properly centered.
During this mode, the tracking DAC is active and output switch-
ing occurs, but the duty cycle is not guaranteed to be within
speci cation.
Diagnostics
The regulated current output is con gured for two wire appli-
cations, requiring one less wire for operation than do switches
with the more traditional open-collector output. Additionally,
the system designer inherently gains diagnostics because there
is always output current flowing, which should be in either of
two narrow ranges. Any current level not within these ranges
indicates a fault condition.
Running Mode
After the initial calibration period, C
I
, during which a signal
gain is established, the device moves to Running mode. Dur-
ing Running mode, the IC tracks the input signal and gives an
output edge for every peak of the signal. AOA remains active to
compensate for any offset drift over time.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ATS645LSHTN-I1 | 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:否 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| ATS645LSHTN-I1-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:True Zero Speed Miniature Gear Tooth Sensor |
| ATS645LSHTN-I2-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:True Zero Speed Miniature Gear Tooth Sensor |
| ATS651LSH | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Two-Wire Self-Calibrating Differential Speed and Direction Sensor with Vibration Immunity |
| ATS651LSH_05 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Two-Wire Self-Calibrating Differential Speed and Direction Sensor with Vibration Immunity |
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