Datasheet > NCT51/D

NCT51/D

更新时间： 2024-09-17 23:53:27

品牌	Logo	应用领域
其他 - ETC		开关
页数	文件大小	规格书
12页	64K
描述
Ultra Small Temperature Switch with Pin-Selectable Hysteresis

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数据手册

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NCT51/D 数据手册

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).

http://onsemi.com

SOT–23A

SN SUFFIX

CASE 1212

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.

The NCT51/NCT52 are aimed for hot–temperature monitoring

(+45°C to +115°C). These devices assert a logic signal when the

temperature goes above the threshold.

The NCT51 and NCT52 are offered in three standard temperature

thresholds. Available in 5–Pin SOT–23A packages, these parts are

ideal for applications requiring high integration, small size, low power

and low installed cost.

PIN CONNECTIONS

OVER

GND

OVER

HYST

*For NCT52

Note: 5–Pin SOT–23A is equivalent to EIAJ SC–74A

Features

• 5–Pin SOT–23A

• Factory–Programmed Thresholds from +45°C to +115°C in 10°C

Increments

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

• Pin–Selectable +2°C or +10°C Hysteresis

• "0.5°C (Typ) Threshold Accuracy Over Full Temperature Range

• No External Components Required

DEVICE MARKING INFORMATION

See general marking information in the device marking

• 17 µA Supply Current

section on page 9 of this data sheet.

Typical Applications

• Thermal Management in PCs and Servers

• Over Temperature Fail Safe Circuits

• Simple Fan Controller

• Temperature Alarms

• Projectors/Printers

• Notebook Computers

• Network Boxes

Semiconductor Components Industries, LLC, 2000

Publication Order Number:

September, 2000 – Rev. 0

NCT51/D

12 3 4 5 6 7...12

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