3422
HALL-EFFECT,
DIRECTION-DETECTION
SENSOR IC
, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
6
Functional Description
Outputs. The device provides three saturated outputs:
DIRECTION, E1 OUTPUT, and SPEED. DIRECTION
provides the direction output of the device and is defined
as OFF (high) for the direction E1 to E2 and ON (low) for
the direction E2 to E1. SPEED provides an XORd output
of the two elements. Because of internal delays, DIREC-
TION will always be updated before SPEED and is
updated at every transition of E1 OUTPUT and E2 OUT-
PUT (internal) allowing the use of up-down counters
without the loss of pulses.
Power-On State. At power on, the logic circutry is reset
to provide an OFF (high) at DIRECTION and an OFF
(high) for E1 and E2 (internal) for magnetic fields less
than B
OP
. This eliminates ambiguity when the device is
powered up and either element detects a field between B
OP
and B
RP
. If either element is subjected to a field greater than
B
OP
, the internal logic will set accordingly.
The integrated circuit contains an internal voltage regula-
tor that powers the Hall elements and both the analog and
digital circuitry. This regulator allows operation over a
wide supply voltage range and provides some immunity to
supply noise. The device also contains CMOS logic
circuitry that decodes the direction of rotation of the ring
magnet.
Quadrature/Direction Detection. Internal logic
circuitry provides outputs representing speed and direction
of the magnetic field across the face of the package. For
the direction signal to be appropriately updated, a quadra-
ture relationship must be maintained between the ring
magnet pole width*, the element-to-element spacing, and,
to a lesser extent, the magnetic switch points. For optimal
design, the device should be actuated with a ring magnet
pole width* two times the sensor-to-sensor spacing. This
will produce a sinusoidal magnetic field whose period
(denoted as ? is then four times the element-to-element
spacing. A quadrature relationship can also be maintained
for a ring magnet that has a period that satisfies the rela-
tionship n?4 = 1.5 mm, where n is any odd integer.
Therefore, ring magnets with pole-pair spacings equal to 6
mm (n = 1), 2 mm (n = 3), 1.2 mm (n = 5), etc. are permit-
ted.
The response of the device to the magnetic field
produced by a rotating ring magnet is shown on page 2.
Note the phase shift between the two elements.
* Pole refers to a single pole (North or South) unless
stated as pole pair (North
and South).
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
AAH002-02
SENSORS MAGNETIC FIELD 8SOIC
AD221-00
SENS MAG SW 20G CROS AXIS 8-MSOP
ADH025-00
SENSOR MAG SW 10G CRS AXS 8-MSOP
ADL024-14E
DIGITAL SWITCH 55HZ ULLGA
AFL300-00
SWITCH MAGNETIC DIG 5.5V 8MSOP
AH173-WL-7-A
IC HALL SENSOR LATCH 25MA SC59-3
AH175-PL-B-B
IC HALL SENSOR BIPO LATCH SIP-3L
AH1751-PG-A-A
IC HALL SENSOR LATCH SIP-3
相关代理商/技术参数
A3422XKA
制造商:未知厂家 制造商全称:未知厂家 功能描述:HALL-EFFECT. DIRECTION-DETECTION SENSORS
A3423EK-T
功能描述:IC DIRECTION SENSOR 2CH 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
A3423ELTR-T
功能描述:IC DIRECTION DETECT SENSOR 8SOIC 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
A3423LK-T
功能描述:IC DIRECTION SENSOR 2CH 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
A3423LLTR-T
功能描述:IC DIRECTION DETECT SENSOR 8SOIC 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
A3425
制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH
A3425_06
制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Ultra-Sensitive Dual-Channel Quadrature Hall-Effect Bipolar Switch
A3425EK
制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Ultra-Sensitive Dual-Channel Quadrature Hall-Effect Bipolar Switch
