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參數資料
| 型號： | A1174EEWLT-P |
| 元件分類： | 磁阻傳感器 |
| 英文描述： | MAGNETIC FIELD SENSOR-HALL EFFECT, -5.5-5.5mT, 300mV, RECTANGULAR, SURFACE MOUNT |
| 封裝： | 1.50 X 2 MM, 0.40 MM HEIGHT, LEAD FREE, DFN-6 |
| 文件頁數： | 1/13頁 |
| 文件大?。?/td> | 316K |
| 代理商： | A1174EEWLT-P |
Description
TheA1174 is a micro-power, Hall-effect latch for use in portable
devices that employ rotational detection systems, and have a
power supply voltage between 1.65 and 3.5 V. The device has
a single push-pull output structure and requires no external
pull-up resistor for reliable operation.
When a sufficient positive magnetic field is present on the
device, the device output transitions to the low state and is
latched in this state until a negative field of sufficient strength
latches the device output into the high state. The latched output
is ideal when using multiple sensors in rotational speed and
direction sensing systems (for example, track ball and scroll
bar systems in portable devices).
The device includes an innovative clocking scheme that
satisfies the micro-power needs of almost any application,
including track balls for PDAs and cell phones. Using the
EXTERNAL_CLK and DUAL_CLK pins as described in this
datasheet, the device can be set into various working modes.
In Dual Clock mode, the device switches between predefined
slow and fast sampling rates. The average current consumption
of the device is extremely low when rotation is not detected.
In External Clock mode, the user sets the clock rate for the
device to achieve the required on and off times for controlling
average power. This user-determined clocking also helps to
A1174-DS, Rev. 6
Features and Benefits
Micro-power latch operation
1.65 to 3.5 V battery operation
Push-pull output eliminates the need for an external pull-
up resistor
User configured, internally or externally controlled sample
and sleep periods
Floating the two clock pins results in the use of a fixed
sampling clock internal to the device
Toggling the clock pins allows the user to control the
sampling and sleep times of the device for extreme low
power operation
External control of the clock pins allows the user to
implement synchronous sampling of multiple sensors in
direction detection systems
Chopper stabilization
Superior temperature stability
Extremely low switchpoint drift
Insensitive to physical stress
Solid state reliability
Small size
Ultrasensitive Hall Effect Latch
with Internally or Externally Controlled Sample and Sleep Periods
for Track Ball and Scroll Wheel Applications
Continued on the next page…
Package: 6-contact MLP/DFN (suffix EW)
Not to scale
A1174
1.5 mm × 2 mm × 0.40 mm
0
Magnetic Flux
Density
A1174 Output
On
Off
On
+B
BOP
BRP
+V
–B
Figure 1. Timing diagram for output switching
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| A1174EEWLT-T | MAGNETIC FIELD SENSOR-HALL EFFECT, -5.5-5.5mT, 300mV, RECTANGULAR, SURFACE MOUNT |
| A1193LUA-T | MAGNETIC FIELD SENSOR-HALL EFFECT, 1-20mT, RECTANGULAR, THROUGH HOLE MOUNT |
| A1192LLHLT-T | MAGNETIC FIELD SENSOR-HALL EFFECT, 1-20mT, RECTANGULAR, SURFACE MOUNT |
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| A1192LUA-T | MAGNETIC FIELD SENSOR-HALL EFFECT, 1-20mT, RECTANGULAR, THROUGH HOLE MOUNT |
相關代理商/技術參數 |
參數描述 |
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| A11755-000 | 制造商:TE Connectivity 功能描述:TTMS-6.4-8 - Tape and Reel |
| A1175-HBL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SPECIFICATION FOR APPROVAL |
| A1175-HBL TC | 制造商:SUNON 功能描述:FAN 172MM 115VAC |
| A1175-HBL TC.GN | 制造商:SUNON 功能描述:FAN 172MM 115VAC 制造商:SUNON 功能描述:FAN, 172MM, 115VAC 制造商:SUNON 功能描述:AXIAL FAN, 172MM, 115VDC,200CFM, 55dBA; Frame Dimensions:171mm x 151mm x 51mm; Supply Voltage:115VAC; Current Rating:480mA; Flow Rate - Imperial:200cu.ft/min; Flow Rate - Metric:6.69m /min; Noise Rating:55dBA; Bearing Type:Ball ;RoHS Compliant: Yes |
| A1175-HBL.T.GN | 制造商:SUNON 功能描述:A1175-HBL.T.GN Fan Size mm: 171x151x51 Bearing: 2 Balls Voltage: 115 |
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