Honeywell Sensing & IoT Micropower SL353 Series Hall-effect digital position sensor IC, omnipolar, ultra low power (1.8 μA, 2.8 Vdc), low duty cycle, SOT-23, pocket tape and reel, 3000 units/reel SL353LT

The SL353 Series sensor ICs are small, versatile, digital Hall-effect devices operated by the magnetic field from a permanent magnet or an electromagnet. These sensitive devices are designed to meet a wide range of potential applications with low power requirements. The SL353 Series responds to either a North or South pole, meaning that they do not require the magnet polarity to be identified, providing an easier installation and potentially reducing system cost. These low-power sensing devices use BiCMOS (Bipolar Complementary Metal Oxide Semiconductor) 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. Both products can operate from a supply voltage as low as 2.2 V, promoting energy efficiency. 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. The SL353 Series is available in two duty cycle configurations to accommodate a variety of application needs: SL353HT: High duty cycle (13% typ.) for applications requiring high switching speed and a lower current (0.33 mA typ.) than standard Hall-effect sensor ICs SL353LT: Very low duty cycle (0.013% typ.), resulting in extended battery life in applications requiring extremely low current drain (1.8 µA typ.) and not requiring a high switching speed The SL353 Series has a typical operating point of ±60 Gauss at 25 °C [77 °F]. These sensors are available in the subminiature SOT-23 surface mount package on tape and reel (3000 units per reel), for use in automated pick-and-place component installation. SL353LT Value Propositions For device manufacturers who need ultra low power sensing for battery-operated, mobile applications, Honeywell's SL353LT Omnipolar Hall-Effect Sensor IC provides an ultra low power (1.8 µA, 2.8 Vdc) sensor IC and helps minimize PCB (Printed Circuit Board) space, part count and cost for the entire application. Unlike other low power Hall-effect sensors, the SL353LT offers ultra low power sensing with significantly lower noise emissions and the ability to minimize PCB space and cost for the entire application as demonstrated by a non-chopper stabilized design, subminiature SOT-23 packaging, omnipolar sensing, the shortest active mode time and lowest average current in its class.