- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370424 > HAL517E (Electronic Theatre Controls, Inc.) Hall Effect Sensor Family PDF資料下載
參數(shù)資料
| 型號： | HAL517E |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Hall Effect Sensor Family |
| 中文描述： | 霍爾效應傳感器系列 |
| 文件頁數(shù)： | 5/44頁 |
| 文件大?。?/td> | 315K |
| 代理商： | HAL517E |
第1頁第2頁第3頁第4頁當前第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
HAL5xx
5
Micronas
2. Functional Description
The HAL5xx sensors are monolithic integrated circuits
which switch in response to magnetic fields. If a
magnetic field with flux lines perpendicular to the
sensitive area is applied to the sensor, the biased Hall
plate forces a Hall voltage proportional to this field. The
Hall voltage is compared with the actual threshold level
in the comparator. The temperature-dependent bias
increases the supply voltage of the Hall plates and
adjusts the switching points to the decreasing induction
of magnets at higher temperatures. If the magnetic field
exceeds the threshold levels, the open drain output
switches to the appropriate state. The built-in hysteresis
eliminates oscillation and provides switching behavior of
output without bouncing.
Magnetic offset caused by mechanical stress is com-
pensated for by using the
“
switching offset compensa-
tion technique
”
. Therefore, an internal oscillator pro-
vides a two phase clock. The Hall voltage is sampled at
the end of the first phase. At the end of the second
phase, both sampled and actual Hall voltages are aver-
aged and compared with the actual switching point. Sub-
sequently, the open drain output switches to the ap-
propriate state. The time from crossing the magnetic
switching level to switching of output can vary between
zero and 1/f
osc
.
Shunt protection devices clamp voltage peaks at the
Output-Pin and V
DD
-Pin together with external series
resistors. Reverse current is limited at the V
DD
-Pin by an
internal series resistor up to
–
15 V. No external reverse
protection diode is needed at the V
DD
-Pin for reverse
voltages ranging from 0 V to
–
15 V.
Fig. 2
–
1:
HAL5xx block diagram
HAL5xx
Temperature
Dependent
Bias
Switch
Hysteresis
Control
Comparator
Output
V
DD
1
OUT
3
Clock
Hall Plate
GND
2
Short Circuit &
Overvoltage
Protection
Reverse
Voltage &
Overvoltage
Protection
t
V
OL
V
OUT
V
OH
1/f
osc
= 16
μ
s
Fig. 2
–
2:
Timing diagram
B
B
ON
f
osc
t
t
t
f
t
I
DD
相關PDF資料 |
PDF描述 |
|---|---|
| HAL517K | Hall Effect Sensor Family |
| HAL518 | Hall Effect Sensor Family |
| HAL518A | Hall Effect Sensor Family |
| HAL518E | Hall Effect Sensor Family |
| HAL518K | Hall Effect Sensor Family |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HAL517K | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Hall Effect Sensor Family |
| HAL518 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Hall Effect Sensor Family |
| HAL518A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Hall Effect Sensor Family |
| HAL518E | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Hall Effect Sensor Family |
| HAL518K | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Hall Effect Sensor Family |
發(fā)布緊急采購，3分鐘左右您將得到回復。