Hall Sensor IC is not a familiar component to many electronic hobbyists.The Hall-Effect principle is named for physicist Edwin Hall. In 1879 he discovered that when a conductor or semiconductor with current flowing in one direction was introduced perpendicular to a magnetic field a voltage could be measured at right angles to the current path.
Now Hall Sensor ICs are widely available at very reasonable rates and it is easy to design interesting circuits using such tiny chips.Here is the data of MH183-one popular CMOS Unipolar Hall Switch from MST.
MH 183 is a unipolar Hall effect sensor IC. It incorporates advanced chopper stabilization technology to provide accurate and stable magnetic switch points. The design, specifications and performance have been optimized for applications of solid state switches. The output transistor will be switched on in the presence of a sufficiently strong South pole magnetic field facing the marked side of the package. Similarly, the output will be switched off in the presence of a weaker South field and remain off with “0” field.
Features and Benefits
- CMOS Hall IC Technology
- Solid-State Reliability
- Chopper stabilized amplifier stage
- Unipolar, output switches with absolute value of South pole from magnet
- Operation down to 2.5V
- High Sensitivity for direct reed switch replacement applications
- Small Size in TO 92S or Sot 23 package.
- Custom sensitivity / Temperature selection are available.
Applications
- Solid state switch
- Limit switch
- Current limit
- Interrupter
- Current sensing
- Magnet proximity sensor for reed switch replacement in low duty cycle applications
Absolute Maximum Ratings
- Supply Voltage (Operating), VDD 28V
- Supply Voltage (Reverse) VDD -0.3V
- Supply Current (Fault), IDD 50mA
- Output Voltage, VOUT 24V
- Output reverse Voltage, VOUT -0.3V
- Output Current (Fault), IOUT 50mA
Warning: Do not apply reverse voltage to VDD and VOUT Pin, It may be caused for Malfunction or damaged device.
For more about Hall Sensors CLICK HERE
No comments:
Post a Comment