ADT6501:  Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switch in SOT-23 (Monitors Temps from +35°C to +115°C)

The ADT6501/ADT6502/ADT6503/ADT6504 are trip point temperature switches available in a 5-lead SOT-23 package. Each part contains an internal band gap temperature sensor for local temperature sensing. ...More

ADT6501:  Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switch in SOT-23 (Monitors Temps from +35°C to +115°C)

Product Description

The ADT6501/ADT6502/ADT6503/ADT6504 are trip point temperature switches available in a 5-lead SOT-23 package. Each part contains an internal band gap temperature sensor for local temperature sensing. When the temperature crosses the trip point setting, the logic output is activated. The ADT6501/ ADT6503 logic output is active low and open-drain. The ADT6502/ADT6504 logic output is active high and push-pull. The temperature is digitized to a resolution of 0.125°C (11-bit). The factory trip point settings are 10°C apart starting from −45°C to +15°C for the cold threshold models and from +35°C to +115°C for the hot threshold models.

These devices require no external components and typically consume 30 μA supply current. Hysteresis is pin-selectable at 2°C and 10°C. The temperature switch is specified to operate over the supply range of 2.7 V to 5.5 V.

The ADT6501 and ADT6502 are used for monitoring temperatures from +35°C to +115°C only. Therefore, the logic output pin becomes active when the temperature goes higher than the selected trip point temperature.

The ADT6503 and ADT6504 are used for monitoring temperatures from −45°C to +15°C only. Therefore, the logic output pin becomes active when the temperature goes lower than the selected trip point temperature.

Product Highlights

  1. Σ-Δ based temperature measurement gives high accuracy and noise immunity.
  2. Wide operating temperature range from −55°C to +125°C.
  3. ±0.5°C typical accuracy from −45°C to +115°C.
  4. Factory threshold settings from 35°C to 115°C in 10°C increments.
  5. Supply voltage is 2.7 V to 5.5 V.
  6. Supply current of 30 μA.
  7. Space-saving, 5-lead SOT-23 package.
  8. Pin-selectable temperature hysteresis of 2°C or 10°C.
  9. Temperature resolution of 0.125°C.

Applications

  • Medical equipment
  • Automotive
  • Cell phones
  • Hard disk drives
  • Personal computers
  • Electronic test equipment
  • Domestic appliances
  • Process controls

    • Data Sheet, Rev. A, 1/08

    Features

    • ±0.5°C (typical) threshold accuracy
    • Factory-set trip points from
      −45°C to +15°C in 10°C increments
      +35°C to +115°C in 10°C increments
    • No external components required
    • Maximum temperature of 125°C
    • Open-drain output (ADT6501/ADT6503)
    • Push-pull output (ADT6502/ADT6504)
    • Pin-selectable hysteresis of 2°C and 10°C
    • Supply current of 30 μA (typical)
    • Space-saving, 5-lead SOT-23 package

    Diagrams

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    • Other Diagrams
    • Symbols and Footprints
    ADT6501 Diagram
    Functional Block Diagram for ADT6501

    Explore Other Products

    Part# Sensor Output Max Deg C Error Over Tmp Temp Range(s) Supply Voltage Range Supply Current (max) Packages Features Product Description Price* (1000-4999)
    ADT6401 Thermostatic Switch 6 -55 to +125 +2.7V to +5.5V 50µA SOT23-6 - Low Cost, 2.7 V to 5.5 V, Pin-Selectable Temperature Switch in SOT-23 (Open Drain Output) $0.60
    ADT6402 Thermostatic Switch 6 -55 to +125 +2.7V to +5.5V 50µA SOT23-6 - Low Cost, 2.7 V to 5.5 V, Pin-Selectable Temperature Switch in SOT-23 (Push-Pull Output) $0.60
    ADT6504 Thermostatic Switch 6 -55 to +125 +2.7V to +5.5V - SOT23-5 - 2.7 V to 5.5 V, Micropower Temperature Switch in SOT-23 w/Push-pull Output, -45 to +15 Deg C $0.50
    ADT6503 Thermostatic Switch 6 -55 to +125 +2.7V to +5.5V - SOT23-5 - 2.7V/5.5V, Micropower Temperature Switch in SOT-23 w/Open-drain Output, -45 to +15 Deg C $0.50
    ADT6502 Thermostatic Switch 6 -55 to +125 +2.7V to +5.5V 50µA SOT23-5 - 2.7V/5.5 V, Micropower Temperature Switch in SOT-23 w/Active-High Push-pull Output, +35 to +115 DegC -
    ADT6501 Thermostatic Switch 6 -55 to +125 +2.7V to +5.5V 50µA SOT23-5 - 2.7V/5.5V, Micropower Temperature Switch in SOT-23 w/ active-low open-drain Output, +35 to +115 DegC $0.50
    AD22105 Thermostatic Switch 3 -40 to +125 +2.7V to 7V 120µA SOIC-8, TO-92 - Low Voltage, Resistor Programmable Thermostatic Switch $1.21
    TMP01 +5mV/°K, Thermostatic Switch 3 -55 to +125 +4.5V to +13.2V 500µA PDIP-8, SOIC-8, TO-99 5 mV/°K, Controller, Two Set Points Low Power, Programmable Temperature Sensor/ Controller w/ upper/lower setpoints $2.67
    Sorted by Max Error Over Tmp (Descending)

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    ** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

    Pricing, Packaging & Availability

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    *The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    **Sample availability may be better than production availability. Please enter samples iinto your cart to check sample availability.

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