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參數(shù)資料
| 型號： | MLX90215EVA |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Precision Programmable Linear Hall Effect Sensor |
| 中文描述： | 高精度可編程線性霍爾效應傳感器 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 294K |
| 代理商： | MLX90215EVA |
*Patent Pending
MLX90215 Programmable Hall Effect Sensor Rev 4.3 7/6/01 Page 3
MLX 90215
Prec ision Programmable*
Linear Hall E ffec t S ensor
How does it Work
The MLX90215 programming is done through the
output pin, by changing supply voltage levels. Please
note that the V
DD
is raised to approximately 13V and
18V
during
programming.
components must also tolerate this voltage
excursion.
When the supply voltage is at 4.5V to
5.5V, the output behaves normally. If the supply
voltage is raised to 13V, the output then behaves as an
input, or LOAD mode, allowing the 31-bit word to be
clocked in. All data is loaded through a single line,
with no dedicated clock signal. Clock and data are
integrated into one signal which is initiated with the
beginning of the LOAD sequence, then clocked with
the positive edge of each bit. Variables are changed
with the PC software and loaded into the temporary
register of the device (RAM) via the timings of the
programmer’s microcontroller. Data can be loaded as
many times as desired while in LOAD mode. Once a
word is loaded, results are checked by observing the
output voltage. This can be done with an external
Voltmeter attached directly to pin 4 of the device, or
with the internal ADC of the programmer. Once the
desired program is loaded, the word can be “Zapped”
permanently into ROM.
This is done when the supply voltage rises above 18V,
or ZAP mode, creating enough current to “Zap” 31
zener diodes which correspond to the temporary
register. The ZAP function is a one-time function and
cannot be erased.
The above description is only for reference. The
voltage levels and data transfer rates are completely
controlled by the ASIC programmer. For more
information on the programmer hardware, contact
Melexis and request a datasheet for the SDAP
programmer.
Programming The Quiescent Offset Voltage (V
OQ
)
10 bits, 1024 steps of resolution, are allotted to adjust
the Quiescent Offset Voltage (V
OQ
). By utilizing the
Any
connected
HALFVDD function, the V
OQ
can be set to one of two
ranges. With the HALFVDD function disabled, the
V
OQ
can be programmed within a range of 10% to 90%
V
DD
with about 5mV per step resolution. With the
HALFVDD function enabled, the device may be
programmed within a 2V to 3V window with less than
1mV per step resolution
Programming the Sensitivity (Gain)
The sensitivity is programmed with a ROUGHGAIN
and a FINEGAIN adjustment. The ROUGHGAIN is
adjusted by utilizing three bits, or 8 increments. The
FINEGAIN is programmed with 10 bits or 1024
increments. The sensitivity can be programmed within
a range of 5mV/mT to 140mV/mT. Another 1-bit
function allows the direction of the sensitivity to be
reversed. The INVERTSLOPE
activated, will cause the Voltage output of the
MLX90215 to decrease in the presence of a South
magnetic field, and to increase in the presence of a
North magnetic field. Table 2 expresses examples of
sensitivity resulting from programming ROUGH
GAIN and FINE GAIN codes, with the INVERT
SLOPE function turned off.
Note:
Tables 1 and 2 are examples how various codes affect the
function,
when
Units
HalfVDD
OffsetDAC
Output
0
0
0
1
1
1
0
512
1023
0
512
1023
4.97
2.47
0.03
3.07
2.45
1.83
V
V
V
V
V
V
Table 1 - Programming Offset Voltage (V
OQ
)
RoughGain
FineGain
Output
Units
0
0
1
1
2
2
0
1023
1023
0
4.1
9.4
6.2
14.6
9.5
22.4
mV/mT
Table 2 - Programming Sensitivity
mV/mT
mV/mT
mV/mT
mV/mT
mV/mT
3
3
4
4
5
5
0
1023
1023
0
14.2
33.1
21.5
50.4
31.3
72.5
mV/mT
mV/mT
mV/mT
mV/mT
mV/mT
mV/mT
6
6
46.2
107
mV/mT
mV/mT
7
7
68.9
140
mV/mT
mV/mT
0
1023
0
1023
0
1023
0
1023
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MLX90215EVA-AAA-106-BA | 制造商:Melexis Semiconductors 功能描述:IC HALL EFFECT SENSOR PREC 4SIP |
| MLX90215EVA-AAA-106-BU | 功能描述:IC SENSOR PROG LINEAR HALL 4SIP RoHS:是 類別:傳感器，轉換器 >> 磁性 - 霍爾效應，數(shù)字式開關，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| MLX90215LVA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Precision Programmable Linear Hall Effect Sensor |
| MLX90215LVA-AAA-111-BA | 制造商:Melexis Semiconductors 功能描述:IC HALL EFFECT SENSOR PREC 4SIP |
| MLX90215LVA-AAA-111-BU | 功能描述:IC SENSOR PROG LINEAR HALL 4SIP RoHS:是 類別:傳感器，轉換器 >> 磁性 - 霍爾效應，數(shù)字式開關，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
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