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參數資料
| 型號： | HMC1021Z |
| 廠商： | Honeywell International Inc. |
| 英文描述： | 1- Axis Magnetic Sensors(一軸磁場傳感器) |
| 中文描述： | 1 -軸磁傳感器（一軸磁場傳感器） |
| 文件頁數： | 11/15頁 |
| 文件大小： | 627K |
| 代理商： | HMC1021Z |
LINEAR MAGNETIC FIELD SENSORS
11
Low Power
—
For low power application, down to 3.3 volt
supply, the circuit shown in Figure 15 can be used. These
low threshold FETs provide low on-resistance (0.3
) at
V
GS
=2.7V. The set/reset pulsing does not need to be
continuous. To save power, the SET pulse can be initially
applied followed by a single RESET pulse. The offset (OS)
can be calculated as:
OS = (Vset + Vrst)/2
This offset term will contain the DC offset of both the sensor
bridge and interface electronics, as well as the temperature
drift of the bridge and interface electronics. Store this value
and subtract it from all future bridge output readings. Once
the bridge is RESET, it will remain in that state for years
—
or until a disturbing field (>20 gauss) is applied. A timer can
be set, say every 10 minutes, to periodically update the
offset term. A flow chart is shown in Figure 14 along with a
timing diagram in Figure 15 to illustrate this process.
Figure 13
—
Set/Reset Pulse With Clock Control (1021/1022)
Figure 15
—
Single Clock Set/Reset Pulse Circuit (1021/1022)
Figure 14
—
Low Power Set/Rst Flowchart
SET Pulse
Read Vset
RESET Pulse
Read Vrst
OS = (Vset+Vrst)/2
Vout = Vrst - OS
Timer
expired
Read Vrst
y
n
9,15
1μF (1)
+5 to 6V
14
HMC1022
Clock
S/R
1
2
4
3
5,6
7,8
(1) Tantalum, low R
(2) Rds ~0.2 ohm
200
8
set
rst
set
Clock
S/R
4 to14V
-4 to -14V
T
PW ~ 2 μsec
5V
set
reset
IRF7105 (2)
DI9952 (2)
0.1μF
T
a
Reset
Set
S/R
Vp
-Vp
T
a > 5 μsec
T
b > 1 μsec
T
c > 20 μsec, 50 msec(max)
T
d > 20 μsec
T
PW ~ 2 μsec
Vp > 3 V
T
PW
set
reset
T
b
T
a
T
c
read
Vset
read
Vrst
T
d
T
d
Vout
1μF (1)
+3.3 to
6.5V
Reset
NDS9933
2,4
1,3
5,6,7,8
(1) Tantalum, low R
(2) Rds ~0.2 ohm
Set
200
5,6,7,8
1,3
2,4
NDS8926
9,15
14
HMC1022
S/R
8
0.1μF
+
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相關代理商/技術參數 |
參數描述 |
|---|---|
| HMC1021Z RC | 制造商:Honeywell Sensing and Control 功能描述: |
| HMC1021Z-RC | 功能描述:SENSOR LINEAR MAGN 1 AXIS 8-SIP RoHS:是 類別:傳感器，轉換器 >> 磁性 - 霍爾效應，數字式開關，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 |
| HMC1022 | 制造商:HITTITE 制造商全稱:Hittite Microwave Corporation 功能描述:GaAs pHEMT MMIC |
| HMC1022_12 | 制造商:HITTITE 制造商全稱:Hittite Microwave Corporation 功能描述:GaAs pHEMT MMIC |
| HMC1022-TR | 功能描述:SENSOR LINEAR MAGN 2 AXIS 16SOIC RoHS:是 類別:傳感器，轉換器 >> 磁性 - 霍爾效應，數字式開關，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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