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NCT51 - Ultra Small Temperature Switch

Datasheet Summary

Description

NCT51 NCT52 1,2 1,2 33 44 5 5

Ground.

Ground both pins together close to the chip.

Pin 2 provides the lowest thermal resistance to the die.

Features

  • 5.
  • Pin SOT.
  • 23A.
  • Factory.
  • Programmed Thresholds from +45°C to +115°C in 10°C Increments.
  • Pin.
  • Selectable +2°C or +10°C Hysteresis.
  • "0.5°C (Typ) Threshold Accuracy Over Full Temperature Range.
  • No External Components Required.
  • 17 µA Supply Current Typical.

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Datasheet preview – NCT51

Datasheet Details

Part number NCT51
Manufacturer ON Semiconductor
File Size 119.65 KB
Description Ultra Small Temperature Switch
Datasheet download datasheet NCT51 Datasheet
Additional preview pages of the NCT51 datasheet.

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Full PDF Text Transcription

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NCT51, NCT52 Ultra Small Temperature Switch with Pin-Selectable Hysteresis The NCT51 and NCT52 are SOT–23 temperature switches that require no external components and the design is facilitated with factory–programmed temperature thresholds. A choice of factory–trimmed temperature trip points are available. Pin selectable hysteresis of +2°C or +10°C allows flexibility to the design. These parts typically consume only 17 µA of current and operate over the entire –55°C to +125°C temperature range while offering accuracies of "0.5°C (typ) and "4°C (max). The NCT51 has an open drain, active low output, meant for microprocessor reset control. The NCT52 has a CMOS, active high output designed to drive a logic level MOSFET to turn on a fan or heater element.
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