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參數(shù)資料
| 型號(hào)： | ATS612LSG |
| 元件分類： | 速度傳感器和接近開關(guān) |
| 英文描述： | PROXIMITY SENSOR-HALL EFFECT, 0.4-2.25mm, 0.90%, 0.18-0.40V, THROUGH HOLE MOUNT |
| 文件頁(yè)數(shù)： | 2/16頁(yè) |
| 文件大?。?/td> | 2829K |
| 代理商： | ATS612LSG |
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ATS612LSG
DYNAMIC, SELF-CALIBRATING, PEAK-DETECTING,
DIFFERENTIAL HALL-EFFECT GEAR TOOTH SENSOR IC
Page 9 of 15
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright 2001, 2003 Allegro MicroSystems, Inc.
Peak Detecting vs. AC-Coupled Filters. High-pass
filtering (normal AC coupling) is a commonly used
technique for eliminating circuit offsets. AC coupling has
errors at power on because the filter circuit needs to hold
the circuit zero value even though the circuit may power
on over a large signal. Such filter techniques can only
perform properly after the filter has been allowed to
settle, which is typically greater than one second. Also,
high-pass filter solutions cannot easily track rapidly
changing baselines such as those caused by
eccentricities. Peak detection switches on the change in
slope of the signal and is baseline independent at power
up and during running.
Peak Detecting vs. Zero-Crossing Reference. The
usual differential zero-crossing sensors are susceptible
to false switching due to off-center and tilted installations
which result in a shift of the baseline that changes with
air gap. The track-and-hold peak-detection technique
ignores baseline shifts versus air gaps and provides
increased immunity to false switching. In addition, using
track-and-hold peak-detecting techniques, increased air
gap capabilities can be expected because a peak
detector utilizes the entire peak-to-peak signal range as
compared to zero-crossing detectors that switch on one-
half the peak-to-peak signal.
NOTE – “Baseline” refers to the zero-gauss differential
field where each Hall-effect element is subject to the
same magnetic field strength.
Power-On Operation. The device will power on in the
OFF state (output high) irrespective of the magnetic field
condition. The power-up time of the circuit is no greater
than 500 s. The circuit is then ready to accurately
detect the first target edge that results in a HIGH-to-
LOW transition.
Under-Voltage Lockout. When the supply voltage is
below the minimum operating voltage (VCC(UV)), the
device is OFF and stays OFF irrespective of the state of
the magnetic field. This prevents false signals, which
may be caused by under-voltage conditions (especially
during turn on), from appearing at the output.
Output. The device output is an open-collector stage
capable of sinking up to 20 mA. An external pull-up
(resistor) to a supply voltage of not more than 24 V must
be supplied.
Output Polarity. The output of the unit will switch from
HIGH to LOW as the leading edge of the tooth passes
the unit in the direction indicated in figure 3 which means
that in this configuration, the output voltage will be high
when the unit is facing a tooth. If rotation is in the
opposite direction, the output polarity will be opposite as
well, with the unit switching LOW to HIGH as the leading
edge passes the unit.
Figure 3
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相關(guān)代理商/技術(shù)參數(shù) |
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| ATS-61300D-C1-R0 | 功能描述:散熱片 FANSINK ASSY 29.25X29.25X9.5 (MM) RoHS:否 制造商:Ampro By ADLINK 產(chǎn)品:Heat Sink Accessories 安裝風(fēng)格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長(zhǎng)度: 寬度: 高度: 設(shè)計(jì)目的:Express-HRR |
| ATS-61300K-C1-R0 | 功能描述:散熱片 FANSINK ASSY 29.25 X 29.25 X 14.5 (MM) RoHS:否 制造商:Ampro By ADLINK 產(chǎn)品:Heat Sink Accessories 安裝風(fēng)格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長(zhǎng)度: 寬度: 高度: 設(shè)計(jì)目的:Express-HRR |
| ATS-61300R-C1-R0 | 功能描述:散熱片 FANSINK ASSY 29.25 X 29.25 X 19.5 (MM) RoHS:否 制造商:Ampro By ADLINK 產(chǎn)品:Heat Sink Accessories 安裝風(fēng)格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長(zhǎng)度: 寬度: 高度: 設(shè)計(jì)目的:Express-HRR |
| ATS-61300W-C1-R0 | 功能描述:散熱片 FANSINK ASSY 29.25 X 29.25 X 24.5 (MM) RoHS:否 制造商:Ampro By ADLINK 產(chǎn)品:Heat Sink Accessories 安裝風(fēng)格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長(zhǎng)度: 寬度: 高度: 設(shè)計(jì)目的:Express-HRR |
| ATS-61310D-C1-R0 | 功能描述:散熱片 FANSINK ASSY 30.25X30.25X9.5 (MM) RoHS:否 制造商:Ampro By ADLINK 產(chǎn)品:Heat Sink Accessories 安裝風(fēng)格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長(zhǎng)度: 寬度: 高度: 設(shè)計(jì)目的:Express-HRR |
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