參數(shù)資料
型號(hào): TLE4990
廠商: INFINEON TECHNOLOGIES AG
元件分類: 霍爾效應(yīng)傳感器
英文描述: Programmable Linear Output Hall Sensor
中文描述: 可編程線性輸出霍爾傳感器
文件頁(yè)數(shù): 7/24頁(yè)
文件大?。?/td> 699K
代理商: TLE4990
TLE4990
Programmable Linear Hall Sensor
Functional Description
Data Sheet
7
V 2.0, 2004-05
Block Diagram
Figure 2
shows a simplified block diagram.
Figure 2
Block Diagram
Principle of Operation
A magnetic flux is measured by a Hall-Effect cell.
The Temperature compensation modulates the bias current of the hall cell.
The output signal from the Hall-Effect cell is amplified.
A zero field voltage is added.
The output voltage range can be clamped by limiters.
The final output value is amplified and buffered.
The output voltage is proportional to the supply voltage (ratiometric bahaviour).
An OBD (
O
n
B
oard
D
iagnistics) circuit connects the output to
V
DD
or GND in case of
errors.
OTPROM/RAM
Interface
Temperature
Linearization
Zero magnetic
field voltage
Clamping
Amplifier,
Buffer
Clock
Gain
Modulator
Chopped
Hallprobe
Sample &
Hold
Out
+
Demodulator
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