TI TMP390A3DRLR

冷，热可编程±3.5°C

Overview

The TMP390A3DRLR device is part of a family of ultra-lowpower, dual channel, resistor programmable temperature switches that enable protection anddetection of system thermal events from –50°C to 130°C. The TMP390offers independent overtemperature (hot) and undertemperature (cold) detection. The trip temperatures (TTRIP) and thermalhysteresis (THYST) options are programmed by two E96-series (1%) standarddecade value resistors on the SETA and SETB pins. Each resistor can range from 1.05 K to 909 K,representing one of 48 unique values.

To enable customer board-level manufacturing, the TMP390supports a trip test function where the digital outputs are activated by exercising the SETA orSETB pin.

Features

Tape & Reel (TR) Package
Cold, Hot Trip Temperature Threshold
Programmable Switching Temperature
±3.5°C Accuracy
Open Drain Output Type
Active Low Output
OverTemp Output Function
Yes Selectable Hysteresis
Selectable Trip Point Features
1.62 V ~ 5.5 V Voltage - Supply
500nA Current - Supply
Surface Mount Mounting Type