參數(shù)資料
型號(hào)： A1361LKTTN-T
元件分類(lèi)： 磁阻傳感器
英文描述： MAGNETIC FIELD SENSOR-HALL EFFECT, 4.65-4.80V, RECTANGULAR, THROUGH HOLE MOUNT
封裝： LEAD FREE, PLASTIC, SIP-4
文件頁(yè)數(shù)： 8/25頁(yè)
文件大?。?/td> 615K
代理商： A1361LKTTN-T
A1360, A1361,
and A1362
Parameter Selection
Each of the four programmable parameters can be accessed
through its corresponding parameter register. These registers are
located in two distinct zones in the A136x devices:
Zone 1, Register 1:
Fine sensitivity, Sens
Zone 2, Register 1:
Fine quiescent voltage output, VOUT(Q)
Zone 2, Register 2:
Coarse quiescent voltage output, VOUT(Q)
Overall device locking, LOCK
To select the register in the first zone, a sequence of one VPH
pulse, the key for the register, and a second VPH pulse (with no
VCC supply interruptions) must be applied serially to the VOUT
pin. The pulse train used for selection of the first register, key 1,
is shown in figure 1.
V+
0
tLOW
tACTIVE
VP(HIGH)
VP(MID)
VP(LOW)
Figure 1. Voltage pulse sequence required to select the first
programmable register in the first zone.
After the falling edge of the second VPH pulse, the bit field of the
selected register may be addressed with the appropriate code (see
Bit Field Addressing section, below).
The first zone must be traversed before the second zone can be
accessed. After completing any bit field addressing in the first
zone, to enter the second zone, apply a third VPH pulse. As in
the first zone, this must be followed by the key for the parameter
register, then a VPH pulse and the bit field code (with no VCC
supply interruptions).
Bit Field Addressing
After the register of a programmable parameter has been selected
as described above, the code pulses must be applied serially to
the VOUT pin with no VCC supply interruptions. As each addi-
tional pulse in the code is transmitted, the overall setting of the
bit field increments by 1, up to the maximum possible code for
that register (see the Programming Logic table). The A136x logic
interprets the overall setting (the binary sum of all of the acti-
vated or blown fuses) and applies it to the value of the parameter,
according to the step size for the parameter (shown in the Electri-
cal Characteristics table).
Addressing activates the corresponding fuse locations in the
given bit field by incrementing the binary value of an internal
DAC. Measurements can be taken after each pulse to determine
if the desired result for the programmable parameter has been
reached. Cycling the supply voltage resets all the locations in the
bit field that have unblown fuses to their initial states.
tLOW
tACTIVE
VP(MID)
VP(LOW)
V+
0
Code
1
Code
2
Code
3
Code
2
n
Code
2
n
–1
Code
2
n
–2
Figure 2. Bit eld addressing pulse train. Addressing the bit eld by incre-
menting the code causes the programmable parameter value to change.
The number of bits available for a given programming code, n, varies
among parameters; for example, the bit eld for Sensitivity has 8 bits avail-
able, which allows 255 separate codes to be used.
Fuse Blowing
After the required code is found for a given parameter, its value
can be set permanently by blowing individual fuses in the appro-
priate register bit field. Blowing is accomplished by applying a
high voltage pulse, called a blow pulse, of sufficient duration to
permanently set an addressed bit by blowing a fuse internal to the
device. Due to power requirements, the fuse for each bit in the
bit field must be blown individually. To accomplish this, the code
representing the desired parameter value must be translated to a
binary number. For example, as shown in figure 3, decimal code
5 is equivalent to the binary number 101. Therefore bit 2 (code
4) must be addressed and blown, the device power supply cycled,
and then bit 0 (code 1) addressed and blown. The order of blow-
ing bits, however, is not important. Blowing bit 0 first, and then
bit 2, is acceptable.
Programming Procedures
Low-Noise Programmable Linear Hall Effect Sensor ICs with
Adjustable Bandwidth (50 kHz Maximum) and Analog Output
16
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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A1363LKTTN-1-T 功能描述:IC HALL SENSOR 0.6-1.3MV/G 4SIP 制造商:allegro microsystems, llc 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 類(lèi)型:線性 技術(shù):霍爾效應(yīng) 軸:單路 感應(yīng)范圍:- 電壓 - 電源:4.5 V ~ 5.5 V 電流 - 電源（最大值）:15mA 電流 - 輸出（最大值）:10mA 輸出類(lèi)型:模擬電壓 分辨率:- 帶寬:120kHz 工作溫度:-40°C ~ 150°C（TA） 特性:可編程，溫度補(bǔ)償 封裝/外殼:4-SIP 模塊 供應(yīng)商器件封裝:模塊 標(biāo)準(zhǔn)包裝:1
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