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AH49H Schematic ( PDF Datasheet ) - BCD

Teilenummer AH49H
Beschreibung LINEAR HALL EFFECT IC
Hersteller BCD
Logo BCD Logo 




Gesamt 10 Seiten
AH49H Datasheet, Funktion
Data Sheet
LINEAR HALL EFFECT IC
AH49H
General Description
The AH49H is a small, versatile linear Hall-effect
device that is operated by the magnetic field from a
permanent magnet or an electromagnet. The output
voltage is set by the supply voltage and varies in
proportion to the strength of the magnetic field.
The integrated circuitry features low noise output,
which makes it unnecessary to use external filtering
components. It also includes precision resistors to
provide increased temperature stability and accuracy.
The operating temperature range of these linear Hall
sensors is -40°C to 105°C, appropriate for
commercial, consumer, and industrial environments.
The AH49H is available in standard TO-92S-3 and
SOT-23-3 packages.
Features
Miniature Construction
• Power Consumption of 2mA at VCC=3.3V for
Energy Efficiency
• Single Current Sourcing Output
• Linear Output for Circuit Design Flexibility
• Low Noise Output Virtually Eliminates the Need
for Filtering
• A Stable and Accurate Output
• Temperature Range: -40°C to 105°C
• Responds to Either Positive or Negative Gauss
• The Maximum Instantaneous Supply Voltage
Up to 50V
• High ESD Rating: 6000V (Human Body Model)
400V (Machine Model)
Application
• Current Sensing
• Motor Control
• Position Sensing
• Magnetic Code Reading
• Rotary Encoder
• Ferrous Metal Detector
• Vibration Sensing
• Liquid Level Sensing
• Weight Sensing
Jun. 2013 Rev. 1.2
TO-92S-3
SOT-23-3
Figure 1. Package Types of AH49H
BCD Semiconductor Manufacturing Limited






AH49H Datasheet, Funktion
LINEAR HALL EFFECT IC
Typical Performance Characteristics
Data Sheet
AH49H
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0 B=0Gauss
0.5 No Load
0.0
2345678
V (V)
CC
Figure 6. Supply Current vs. Supply Voltage
2.8
2.4
2.0
1.6
1.2
0.8
-4000
V =3.3V
CC
No Load
-2000
0
B (Gauss)
2000
4000
Figure 7. Output Voltage vs. Magnetic Field
5
4
3
2
B=0Gauss
1 No Load
0
2345678
V (V)
CC
Figure 8. Output Voltage vs. Supply Voltage
3
2
1
V =3.3V
CC
B=0Gauss
No Load
0
-40
0 40 80
T (oC)
A
120
Figure 9. Output Voltage vs. Ambient Temperature
Jun. 2013 Rev. 1.2
BCD Semiconductor Manufacturing Limited

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