TMP709

ACTIVE

Resistor-programmable temperature switch with 2°C and 10°C hysteresis

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Product details

Parameters

SetPoint type Resistor Programmable SetPoint value (deg C) 0 to 125 Operating temperature range (C) -40 to 125 Accuracy over temp range (Max) (C) 3 Output type Open Drain Supply voltage (Min) (V) 2.7 Supply voltage (Max) (V) 5.5 Supply current (Typ) (uA) 40 Comparator channels (#) 1 Features Built-in hysteresis Rating Catalog Interface type Switch open-in-new Find other Temperature switches

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Temperature switches

Features

  • Threshold Accuracy:
    • ±0.5°C Typical
    • ±3°C Maximum (60°C to 100°C)
  • Temperature Threshold Set By 1% External Resistor
  • Low Quiescent Current: 40 µA Typical
  • Open-Drain, Active-Low Output Stage
  • Pin-Selectable 2°C or 10°C Hysteresis
  • Reset Operation Specified at VCC = 0.8 V
  • Supply Range: 2.7 V to 5.5 V
  • Package: 5-Pin SOT-23
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Description

The TMP709 is a fully-integrated, resistor- programmable temperature switch with a temperature threshold that is set by just one external resistor within the entire operating range. The TMP709 provides an open-drain, active-low output and has a 2.7-V to 5.5-V supply-voltage range.

The temperature threshold accuracy is typically ±0.5°C, with a maximum of ±3°C (60°C to 100°C). The quiescent current consumption is typically 40 µA. Hysteresis is pin-selectable to 2°C or 10°C.

The TMP709 is available in a 5-pin, SOT-23 package.

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Technical documentation

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Type Title Date
* Data sheet TMP709 Resistor-Programmable Temperature Switch in SOT Package datasheet (Rev. B) Dec. 23, 2016
Technical article How to choose the right thermistor for your temperature sensing application Feb. 13, 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical article Driving industrial innovation with small-size sensors Sep. 12, 2019
Technical article How to select a temperature sensor probe Feb. 18, 2016
User guide TMP708/709EVM Evaluation Board and Software Tutorial Dec. 13, 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
55
Description
The TMP709EVM is a platform for evaluating the TMP709 Resistor Programmable Switch.
Features
  • Pin Sockets allow convenient selection of Rset
  • LED Status Indicators
  • Optional Hysteresis Selection
  • 2.7V to 5.5V operation
  • Design tools & simulation

    SIMULATION MODEL Download
    SBOM730.ZIP (22 KB) - IBIS Model

    Reference designs

    REFERENCE DESIGNS Download
    Universal Input to 3.3V, 12V, 36V, 200W Continuous PSU for Class-D Amplifier Reference Design
    PMP10215 — This power module generates all voltages to supply a class-D audio amplifier. The main output voltage is 36V and delivers 200W continuously and 840W peak. The first stage is a power-factor corrected Boost. A Flyback converter supplies 12V on primary side as well as 12V@300mA and 3.3V@200mA on (...)
    document-generic Schematic document-generic User guide
    REFERENCE DESIGNS Download
    Universal Input to 3.3V, 12V, 30V, 200W Continuous PSU for Class-D Amplifier Reference Design
    PMP30183 — This power reference design generates all voltages to supply a class-D audio amplifier. The main output voltage is 30V and delivers 200W continuously and 750W peak. The first stage is a power-factor corrected Boost. A Flyback converter supplies 12V on primary side as well as 12V@300mA and 3.3V@200mA (...)
    document-generic Schematic document-generic User guide

    CAD/CAE symbols

    Package Pins Download
    SOT-23 (DBV) 5 View options

    Ordering & quality

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