參數(shù)資料
型號(hào)： A1642LKTN-I2-T
元件分類： 磁阻傳感器
英文描述： MAGNETIC FIELD SENSOR-HALL EFFECT, 3-100mT, RECTANGULAR, THROUGH HOLE MOUNT
封裝： LEAD FREE, SIP-4
文件頁(yè)數(shù)： 8/13頁(yè)
文件大?。?/td> 326K
代理商： A1642LKTN-I2-T
4
A1642LK-DS
Worcester, Massachusetts 01615-0036 (508) 853-5000
115 Northeast Cutoff, Box 15036
www.allegromicro.com
Allegro MicroSystems, Inc.
Two-Wire True Zero-Speed Miniature Differential Peak-Detecting Sensor with Continuous Calibration
A1642LK
OPERATING CHARACTERISTICS
(continued) TA and VCC within specication, unless otherwise noted
Characteristic
Symbol
Test Conditions
Min.
Typ.1
Max.
Units
SWITCHPOINT CHARACTERISTICS
Operating Speed
fOP
0
–
8,000
Hz
Analog Signal Bandwidth
BW
Equivalent to f – 3 dB
20
40
–
kHz
Operate Point
BOP
Transitioning from ICC(High) to ICC(Low); positive peak
referenced; AG < AGMAX
–
120
–
mV
Release Point
BRP
Transitioning from ICC(Low) to ICC(High); negative peak
referenced; AG < AGMAX
–
120
–
mV
CALIBRATION
Initial Calibration
CI
Quantity of rising output (current) edges required for
accurate edge detection
–
3
Edge
DAC CHARACTERISTICS
Allowable User-Induced Differential
Offset
Operating within specication
–
±90
G
FUNCTIONAL CHARACTERISTICS6
Operating Signal Range7
Sig
Operating within specication
30
–
1000
G
Minimum Operating Signal
SigOP(min)
Output switching (no missed edges); ΔDC not
guaranteed
20
–
G
1Typical values are at TA = 25°C and VCC = 12 V. Performance may vary for individual units, within the specied maximum and minimum limits.
2Maximum voltage must be adjusted for power dissipation and junction temperature; see Power Derating section.
3Please refer to Sensor Operation section, page 11.
4Power-On Time includes the time required to complete the internal automatic offset adjust. The DACs are then ready for peak acquisition.
5dI is the difference between 10% of ICC(Low) and 90% of ICC(High), and dt is time period between those two points.
Note: di/dt is dependent upon the value of the bypass capacitor, if one is used.
6Functional characteristics valid only if magnetic offset is within the specied range for Allowable User Induced Differential Offset.
7In order to remain in specication, the magnetic gradient must induce an operating signal greater than the minimum value specied. This includes the
effect of target wobble.
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