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參數(shù)資料
| 型號： | A1190LUA-T |
| 元件分類： | 磁阻傳感器 |
| 英文描述： | MAGNETIC FIELD SENSOR-HALL EFFECT, 1-20mT, RECTANGULAR, THROUGH HOLE MOUNT |
| 封裝： | 1.50 X 4 MM, 3 MM HEIGHT, LEAD FREE, SIP-3 |
| 文件頁數(shù)： | 18/18頁 |
| 文件大?。?/td> | 427K |
| 代理商： | A1190LUA-T |
Programming Guidelines
Overview
Programming is accomplished by sending a series of input volt-
age pulses serially through the VCC (supply) pin of the device.
A unique combination of different voltage level pulses controls
the internal programming logic of the device to select a desired
programmable parameter and change its value. There are three
voltage levels that must be taken into account when program-
ming. These levels are referred to as high (VPH), mid (VPM), and
low (VPL) (see figure 1 and table 1).
The A119x family features two programmable modes, Try mode
and Blow mode.
In Try mode, programmable parameter values are set and mea-
sured. A parameter value is stored temporarily, and reset after
cycling the supply voltage.
In Blow mode, the value of a programmable parameter may
be permanently set by blowing solid-state fuses internal to the
device. Device locking is also accomplished in this mode.
The programming sequence is designed to help prevent the
device from being programmed accidentally; for example, as a
result of noise on the supply line. Although any programmable
variable power supply can be used to generate the pulse wave-
forms, Allegro highly recommends using the Allegro Sensor IC
Evaluation Kit, available on the Allegro website On-line Store.
The manual for that kit is available for download free of charge,
and provides additional information on programming these
devices.
Definition of Terms
Register. The section of the programming logic that controls the
choice of programmable modes and parameters.
Bit Field. The internal fuses unique to each register, represented
as a binary number. Changing the bit field selection in a particu-
lar register causes its programmable parameter to change, based
on the internal programming logic.
Key. A series of VPM voltage pulses used to select a register or mode.
Table 1. Programming Pulse Requirements, Protocol at TA = 25°C (refer also to figure 4)
Characteristic
Symbol
Notes
Min. Typ. Max. Unit
Programming Voltage
VPL
Measured at the VCC pin.
4.5
5
5.5
V
VPM
12.5
–
14
V
VPH
21
–
27
V
Programming Current
IPP
tPr = 11 μs, VCC = 5 → 26 V, CBLOW = 0.1 μF (min). Minimum supply current
required to ensure proper fuse blowing. CBLOW must be connected between the
VCC and GND pins during programming to provide the current necessary for fuse
blowing.
175
–
mA
Pulse Width
tLOW
Duration at VPL separating pulses at VPM or VPH.20
–
μs
tACTIVE
Duration of pulses at VPM or VPH for key/code selection.
20
–
μs
tBLOW
Duration of pulse at VPH for fuse blowing.
10
100
–
μs
Pulse Rise Time
tPr
VPL to VPM, or VPL to VPH.
5
–
100
μs
Pulse Fall Time
tPf
VPH to VPL, or VPM to VPL.
5
–
100
μs
Blow Pulse Slew Rate
SRBLOW
375
–
mV/ μs
Supply
V
oltage,
V
CC
0
(Supply
cycled)
Programming
pulses
Blow
pulse
tACTIVE
tLOW
tBLOW
tPr
tPf
VPH
VPM
VPL
Figure 4. Programming pulse definition (see table 1)
Programmable, Chopper-Stabilized,
Two Wire Hall-Effect Switches
A1190, A1192,
and A1193
9
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A1190LUBTN-T | 功能描述:2-WIRE FIELD PROGRAMMABLE SWITCH 制造商:allegro microsystems, llc 系列:* 零件狀態(tài):新產(chǎn)品 標準包裝:1 |
| A1191 | 制造商:Quick 功能描述:SIP 25L 25mm Nozzle for 21-13205 and 21-13210 制造商:QUICK 功能描述:SIP 25L NOZZLE FOR QUICK957/957D |
| A-1191-1 | 功能描述:固態(tài)繼電器-工業(yè)安裝 DC SOLENOID RoHS:否 制造商:Crydom 控制電壓范圍:4 VDC to 32 VDC 負載電壓額定值:7 VDC to 72 VDC 負載電流額定值:160 A 觸點形式: 輸出設(shè)備:SSR 安裝風(fēng)格:Panel |
| A1192 | 制造商:Quick 功能描述:SIP 50LNOZZLE FOR QUICK957/957D |
| A11927-01 | 制造商:LAIRD TECHNOLOGIES - THERMAL MATERIALS 功能描述:TGON 810 SA 18" X 23" 制造商:Laird Technologies Inc 功能描述:TGON 810 SA 18" X 23" 制造商:Laird Technologies Inc 功能描述:TGON 810,SA / 18 X 23 |
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