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AD22157 データシート(PDF) 2 Page - Analog Devices

部品番号 AD22157
部品情報  Wheel Speed Sensor For ABS Systems
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

AD22157 データシート(HTML) 2 Page - Analog Devices

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REV. PrA
Preliminary AD22157 - Specifications (TA=+25C and V+=12V unless otherwise noted)
NOTES
1 Left: wheel moving from pin 1 to pin 5 with the front of the AD22157 facing the wheel (see figure 7).
2 Timing wheel with 2.5mm tooth/2.5mm valley and 5mmx4mm SmCo magnet.
Parameters
Min
Typ
Max
Units
OPERATING TEMPERATURE
-40
150
C
POWER SUPPLY
Vcc Operating
Vcc max transient
Reverse Supply
4.5
20.0
27.0
-30.0
V
SUPPLY CURRENT
Iout low
Iout high (pulsed)
5.5
11.0
7.0
14.0
8.5
17.0
mA
OUTPUT CURENT RATIO
1.8
2
2.2
OUTPUT CURRENT PULSE WIDTH1
Nominal field operation (left/right)
Low field operation (left/right)
Air gap limit
No field or stopped for >737mS
72/144
288/576
36
1152
90/180
360/720
45
1440
108/216
432/664
54
1728
uS
PULSE PERIOD IN STOPPED MODE
589
737
884
mS
THRESHOLDS FOR OPERATION MODES
Nominal field threshold
Low field threshold
Field too low threshold
4<Bth
2<Bth<4
Bth<2
mT
POWER ON TIME
4
mS
CALIBRATION CYCLE
4
edges
CALIBRATION UPDATE CYCLE
each edge
TIMING ACCURACY2
2%
ABSOLUTE MAXIMUM RATINGS*
Maximum Supply Voltage . . . . . . . . . . . . . . . . . . . . . +27 V
Maximum Output Current (Pin 2) . . . . . . . . . . . . . . 18 mA
Operating Temperature Range . . . . . . . . . –40
°C to +150°C
Die Junction Temperature . . . . . . . . . . . . . . . . . . . .+190
°C
Storage Temperature Range . . . . . . . . . . –65
°C to +160°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . +300
°C
*Stresses above those listed under “Absolute Maximum Ratings” may cause permanent
damage to the device. This is a stress rating only and functional operation of the device
at these or any other conditions above those listed in the operational sections of this spec-
ification is not implied. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
PIN 1 IDENTIFIER
1
2
3
4
5
Pin Configuration
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
AD22157 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.
NC
NC
NC
Vlow
Vhigh
PRELIMINARY TECHNICAL DATA


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