TRIPSET0

Temperature

Threshold and

Hysteresis

Temperature

Sensor

Comparator

Alert

Bias

TRIPSET1

GROUND

OUT

VS

HYSTSET

7

TMP302

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SBOS488E – JUNE 2009 – REVISED DECEMBER 2018

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7 Detailed Description

7.1 Overview

The TMP302 temperature switch is optimal for ultra low-power applications that require accurate trip thresholds.

A temperature switch is a device that issues an alert response when a temperature threshold is reached or

exceeded. The trip thresholds are programmable to four different settings using the TRIPSET1 and TRIPSET0

pins. Table 1 lists the pin settings versus trip points.

Table 1. Trip Point versus TRIPSET1 and TRIPSET0

TRIPSET1

TRIPSET0

TMP302A

TMP302B

TMP302C

TMP302D

GND

GND

50°C

70°C

90°C

110°C

GND

VS

55°C

75°C

95°C

115°C

VS

GND

60°C

80°C

100°C

120°C

VS

VS

65°C

85°C

105°C

125°C

7.2 Functional Block Diagram