The OCH1931 is a small, versatile linear
Hall-effect device that is operated by the magnetic field
from a permanent magnet or an electromagnet .The
linear output voltage is set by the supply voltage and
varies in proportion to the strength of the magnetic
The integrated circuitry features low noise output,
which makes it unnecessary to use external filtering. It
also includes thin film resistors to provide increased
temperature stability and accuracy.
The linear Hall sensor has an operating
temperature range of -40 °C to 85 °C appropriate for
commercial, consumer and industrial environments.
Linear Hall-effect Sensors
⚫ Input Voltage Range : 2.5V to 7.5V
⚫ Low-noise Output virtually Eliminates the Need
⚫ Responds to either Positive or Negative Gauss
⚫ Single Current Sourcing Output
⚫ Available in SIP-3L Packages
⚫ -40℃ to +85 ℃ Temperature Range
⚫ Motor Control
⚫ Current Sensing
⚫ Position Sensing
⚫ Magnetic Code Reading
⚫ Rotary Encoder
◼ Pin Configuration
◼ Application Circuit
IC Power Supply
Linear Voltage Output Pin
Figure 1, application circuit
Note: CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 0.1~1uF.
If the VDD power supply is clean, the CIN can be cancelled.
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Ver. 1.2 Feb .27, 2018