SL353HT

The SL353HT is a micropower omnipolar Digital Hall Effect Sensor operated by the magnetic field from a permanent magnet or an electromagnet. The device responds to either a North or South pole, meaning that they do not require the magnet polarity to be identified, providing an easier installation. These low-power sensing devices use BiCMOS technology and a timing circuit that turns the power on for only a short time - it is off for the rest of the period (duty cycle) - significantly reducing the average current consumption. The push-pull output does not require a pull-up resistor and can operate with very low current levels, potentially helping to reduce cost and minimizing the total current consumption. SL353HT has high duty cycle (13% typical) for applications requiring high switching speed and a lower current (0.33mA typical) than standard Hall-effect sensor ICs. The device has a typical operating point of ±60Gauss at 25°C (77°F).

• Energy efficient
• Non-chopper stabilized design
• Omnipolar capability with high-duty and low-duty cycle options