NCT51 Datasheet - ON Semiconductor

NCT51 Ultra Small Temperature Switch

NCT51 NCT52 1,2 1,2 33 44 5 * *5 * * * * Name GND HYST VCC TOVER TOVER TUNDER TUNDER Description Ground. Ground both pins together close to the chip. Pin 2 provides the lowest thermal resistance to the die. Hysteresis Input. Connect HYST to GND .

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 5.

NCT51 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

NCT51-ONSemiconductor.pdf