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| 型号： | ATS643LSH-I2 |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 11/16页 |
| 文件大小： | 492K |
| 描述： | IC SENSOR GEAR TOOTH 4-SIP |
| 标准包装： | 800 |
| 传感范围： | 65% 跳闸，35% 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： | 散装 |
Self-Calibrating, Zero-Speed Differential
Gear Tooth Sensor IC with Continuous Update
ATS643LSH
10
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
induced by the target and sensed by the Hall elements. When
V
PROC
transitions through a switchpoint from the appropriate
higher or lower level, it triggers IC switch turn-on and turn-off.
As shown in figure 3, when the switch is in the off state, as
V
PROC
rises through a certain limit, referred to as the operate
point, B
OP
, the switch toggles from off to on. When the switch is
in the on state, as V
PROC
falls below B
OP
to a certain limit, the
release point, B
RP
, the switch toggles from on to off.
B
HYS(#1)
Pk
(#4)
Pk
(#5)
Pk
(#7)
Pk
(#9)
Pk
(#2)
Pk
(#3)
Pk
(#1)
Pk
(#6)
Pk
(#8)
B
RP(#1)
B
OP(#1)
B
RP(#2)
B
RP(#3)
B
OP(#3)
B
RP(#4)
B
OP(#4)
B
HYS(#4)
B
HYS(#3)
B
HYS(#2)
t+
V+
B
OP(#2)
(A) TEAG varying; cases such as
eccentric mount, out-of-round region,
normal operation position shift
(B) Internal analog signal, V
PROC
,
typically resulting in the IC
0
360
Target Rotation (?
Hysteresis Band
(Delimited by switchpoints)
V+
Larger
TEAG
Smaller
TEAG
IC
Target
Larger
TEAG
Target
IC
Smaller
TEAG
Smaller
TEAG
As shown in panel C of figure 4, threshold levels for the ATS643
switchpoints are established dynamically as function of the
peak input signal levels. The ATS643 incorporates an algorithm
that continuously monitors the system and updates the switch-
ing thresholds accordingly. The switchpoint for each edge is
determined by the detection of the previous two edges. In this
manner, variations are tracked in real time.
Figure 4. The Continuous Update algorithm allows the Allegro IC to immediately interpret and adapt to significant variances in the magnetic field gener-
ated by the target as a result of eccentric mounting of the target, out-of-round target shape, elevation due to lubricant build-up in journal gears, and
similar dynamic application problems that affect the TEAG (Total Effective Air Gap). The algorithm is used to dynamically establish and subsequently
update the device switchpoints (B
OP
and B
RP
). The hysteresis, B
HYS(#x)
, at each target feature configuration results from this recalibration, ensuring that
it remains properly proportioned and centered within the peak-to-peak range of the internal analog signal, V
PROC
.
As shown in panel A, the variance in the target position results in a change in the TEAG. This affects the IC as a varying magnetic field, which results in
proportional changes in the internal analog signal, V
PROC
, shown in panel B. The Continuous Update algorithm is used to establish accurate switchpoints
based on the fluctuation of V
PROC
, as shown in panel C.
(C) Referencing the internal analog signal, V
PROC
, to continuously update device response
B
HYS
Switchpoint
Determinant
Peak Values
1
B
OP(#1)
Pk
(#1)
, Pk
(#2)
B
RP(#1)
Pk
(#2)
, Pk
(#3)
2
B
OP(#2)
Pk
(#3)
, Pk
(#4)
B
RP(#2)
Pk
(#4)
, Pk
(#5)
3
B
OP(#3)
Pk
(#5)
, Pk
(#6)
B
RP(#3)
Pk
(#6)
, Pk
(#7)
4
B
OP(#4)
Pk
(#7)
, Pk
(#8)
B
RP(#4)
Pk
(#8)
, Pk
(#9)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ATS643LSHTN-I1-T | 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:是 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 |
| ATS643LSHTN-I2-T | 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:是 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 |
| ATS645 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:True Zero Speed Miniature Gear-Tooth Sensor |
| ATS645LSH | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:True Zero Speed Miniature Gear Tooth Sensor |
| ATS645LSH-I2 | 制造商:Allegro MicroSystems LLC 功能描述: |
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