Honeywell has expanded its Hall-effect sensor portfolio with the new SL353 Series Micropower Omnipolar Digital Hall-effect Sensor ICs that promote energy efficiency and help reduce PC board space and manufacturing costs for the customer.
• Energy efficient: Low supply voltage and a very low average current—the lowest in its
class—help reduce power consumption and extend battery life
• Micropower: Built-in timing circuitry turns the power to the IC on for a very short
time—it is off for the balance of the period—significantly reducing the average current consumption
• Omnipolarity: SL353 Series is designed to respond to either a North or South pole,
simplifying installation and helping to reduce total system costs
• High performance: BiCMOS IC design, a new Honeywell technology, makes it possible to add
more performance and functionality while reducing the IC size (compared to bipolar technology)
• Small package: SOT-23 subminiature packaging allows for use in smaller assemblies
The SL353 Series are small, versatile digital Hall-effect devices operated by the magnetic field from a permanent magnet or an electromagnet. They are designed for a wide variety of high-volume, cost-sensitive battery-operated applications including motion control, lid closure detection, presence-absence, metering, and displacement sensing applications. Both products are available in the subminiature SOT-23 surface mount package, and are supplied on tape and reel (3000 units per reel).
SL353LT
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 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 PC board 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.
SL353HT
For device manufacturers who need to optimize the PC board in energy efficient, “green” products with higher switching frequency requirements, Honeywell’s SL353HT Omnipolar Hall-effect Sensor IC provides a low power sensor IC that can be used in higher switching frequency applications.
Unlike standard Hall-effect sensors, the SL353HT offers the ability to optimize the PCB in high switching frequency applications as demonstrated by its low power (0.33 mA, 2.8 Vdc) use, high duty cycle (13% typ.) and subminiature SOT-23 package size.
Battery-operated, mobile equipment such as:
• Door or lid closure detection in notebooks, scanners, hand-held industrial computers or
instrumentation
• Mobile printer head position sensing
• Small hand-held medical or dental equipment
• Battery-operated infusion pumps, insulin pumps or other wearable medical devices
• Trigger switch for battery-operated hand tools
• Reed switch replacement in battery operated security systems
• Magnetic encoder for building access (array)
• Power switch or open-close detection in small battery-operated appliances (vacuum cleaner, fan, etc.)
• Gas or water consumption measurement in remote, battery-operated utility meters
