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参数资料
| 型号： | A1354KKT-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 15/23页 |
| 文件大小： | 540K |
| 描述： | IC SENSOR HALL EFFECT 4-SIP |
| 产品培训模块： | Current Sensor |
| 标准包装： | 500 |
| 传感范围： | 0.1% ~ 0.2%/G |
| 类型： | 线性场传感器 |
| 电源电压： | 4.5 V ~ 16 V |
| 电流 - 电源： | 9mA |
| 输出类型： | 数字式， PWM 编码 |
| 特点： | 高精度 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 4-SIP |
| 供应商设备封装： | 4-SIP |
| 包装： | 散装 |
| 产品目录页面： | 1139 (CN2011-ZH PDF) |
| 其它名称： | 620-1317 |
Mode and Parameter Register Selection
Each mode and programmable parameter can be accessed through
a specific register. To select a register, a sequence of voltage
pulses consisting of a VPH pulse, a series of VPM pulses, and a
VPH pulse (with no VCC supply interruptions) must be applied
serially to the VCC pin. The number of VPM pulses is called the
key, and uniquely identifies each register. The pulse train used for
selection of the first register, key 1, is shown in figure 2.
The A1354 has two registers that select among the three program-
ming modes:
Register 1:
Blow and Lock
Register 2:
Try
Also, it has four registers that select among the seven program-
mable parameters:
Register 1:
Sensitivity, Sens
Coarse quiescent duty cycle, D
(Q)
Register 2:
Fine quiescent duty cycle output, D
(Q)
Register 3:
Coarse pulse width modulated carrier frequency
Pulse width modulated carrier frequency, f
PWM
Register 5:
Calibration Test Mode
Overall device Lock Bit, LOCK
Bitfield Addressing
After a parameter register has been selected, a VPH pulse transi-
tions the programming logic into the bitfield addressing state.
Applying a series of VPM pulses to the VCC pin of the device, as
shown in figure 3, increments the bitfield of the selected param-
eter.
When addressing the bitfield, the number of VPM pulses is
represented by a decimal number called the code. Addressing
activates the corresponding fuse locations in the given bitfield by
incrementing the binary value of an internal DAC. The value of
the bitfield (and code) increments by one with the falling edge of
each VPM pulse, up to the maximum possible code for the reg-
ister (see the Programming Logic table). As the code increases,
the value of the programmable parameter changes. Measurements
can be taken after each VPM pulse to determine if the desired
result for the programmable parameter has been reached. Cycling
the supply voltage resets all the locations in the bitfield that have
unblown fuses to their initial states.
Fuse Blowing
After the required code is found for a given parameter, its value
can be set permanently by blowing individual fuses in the
appropriate register bitfield. Blowing is accomplished by apply-
ing a VPH pulse, called a blow pulse, of sufficient duration at the
V
P(HIGH)
level 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 bitfield must be blown individually. To accom-
plish this, the code representing the desired parameter value
must be translated to a binary number. For example, as shown
in figure 4, 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. An appropriate sequence for blowing code 5 is shown
Figure 2. Parameter selection pulse train. This shows the sequence for
selecting the register corresponding to key 1, indicated by a single VPM
pulse.
Figure 3. Bitfield addressing pulse train. Addressing the bitfield by
incrementing 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 bitfield for D
(Q)
has 6 bits
available, which allows 63 separate codes to be used.
V+
0
t
LOW
t
ACTIVE
P(HIGH)
V
P(MID)
P(LOW)
V+
0
V
P(HIGH)
V
P(MID)
V
P(LOW)
High Precision 2-Wire Linear Hall Effect Sensor IC
with Pulse Width Modulated Output
A1354
14
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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| A1354KKTTN-T | 功能描述:IC HALL EFFECT SENSOR 2WIRE 4SIP RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| A1354P1-2 | 制造商:APEM 功能描述: |
| A1354P1-6 | 功能描述:SWITCH HARDWARE RoHS:是 类别:开关 >> 配件 系列:- 标准包装:100 系列:- 其它名称:886.0007886.0007-ND |
| A1354P2-4 | 制造商:APEM 功能描述: |
| A1354P2-5 | 功能描述:SWITCH HARDWARE RoHS:是 类别:开关 >> 配件 系列:- 标准包装:100 系列:- 其它名称:886.0007886.0007-ND |
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