Differential Programmable Linear Hall Sensor IC



SC4645 is a programmable liner Hall-effect sensor IC, integrated with one magnetic sensor module, a three-level variable low-noise amplifier, output pin and temperature detection, quiescent output compensation, sensitivity compensation, and EEPROM. The sensor reacts to the magnetic field which is perpendicular to the chip, and convert to output voltage according to sensitivity. Which is very suitable to current monitor.
SC4645 have a quiescent output voltage default as half of the supply voltage. And the quiescent voltage can be programmed through VDD-pin and OUT-pin. The sensitivity range of the chip can be changed from 1mV/Gs to 21mV/Gs in order to adapt the current flow of various ranges.
SC4645 is integrated with temperature sensor module. User can compensate the sensitivity of the chip through change temperature coefficient, together with the temperature coefficient of the magnetic ring could enhance accuracy.
The typical supply-voltage of the IC is 5.0V , limited voltage is 15V, operating temperature is -40℃ to 125℃, capable of maintaining stable operation in the harsh automotive environment.
The SC4645 sensor IC is available in a 4-pin surface The package is lead (Pb) free, with 100% matte tin plating.


  • With reference voltage output (typicalValue 2.5V)
  • Programmable High-speed Liner Hall Sensor
    – Quiescent output voltage
    – Reference voltage
    – Sensitivity (1.0—21 mV/Gs)
    – Temperature coefficient of Sensitivity
  • Response time up to 3.6μS
  • Bandwidth up to120 kHz
  • Operating Voltage Range: 4.5—5.5V
  • Operating Temperature Range -40—125℃
  • Under Circuit, Open Circuit Protection
  • SIP4 package

Seal & Selection

Item Packing Seal Working Temperature Marking
SC4645VB 1000pcs/Bag SIP4 -40℃ to 150℃ 4645

Demo Boards

Tool & Source