TMP235-Q1

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Automotive Grade ±1.5°C 2.3V to 5.5V analog output temperature sensor with +10 mV/°C gain

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Product details

Parameters

Local sensor accuracy (Max) (+/- C) 1.5 Operating temperature range (C) -40 to 125, -40 to 150 Supply voltage (Min) (V) 2.3 Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 12 Interface type Analog output Sensor gain (mV/Deg C) 10 Rating Automotive Features Industry standard pinout TI functional safety category Functional Safety-Capable open-in-new Find other Analog temperature sensors

Package | Pins | Size

SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 SOT-SC70 (DCK) 5 4 mm² 2 x 2.1 open-in-new Find other Analog temperature sensors

Features

  • AEC-Q100 qualified for automotive applications
    • TMP235-Q1 grade 0: –40°C to +150°C
    • TMP236-Q1 grade 1: –40°C to +125°C
  • Tight accuracy across a wide temperature range:
    • ±2.5°C (maximum): –40°C to +150°C (TMP235-Q1)
    • ±2.5°C (maximum): –10°C to +125°C (TMP236-Q1)
  • Positive slope sensor gain, offset (typical):
    • 10 mV/°C, 500 mV at 0°C (TMP235-Q1)
    • 19.5 mV/°C, 400 mV at 0°C (TMP236-Q1)
  • Wide operating supply voltage range:
    • 2.3 V to 5.5 V (TMP235-Q1)
    • 3.1 V to 5.5 V (TMP236-Q1)
  • Short-circuit protected output
  • Low power: 9 µA (typical)
  • Strong output for driving loads up to 1000 pF
  • Available package options:
    • 5-pin SC70 (DCK) surface mount
    • 3-pin SOT-23 (DBZ) surface mount
    • Footprint compatible with industry-standard LMT8x-Q1, LM50-Q1, and LM20 temperature sensors
  • Cost-effective alternative to thermistors

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Description

The TMP23x-Q1 devices are a family of automotive grade precision CMOS integrated-circuit linear analog temperature sensors with an output voltage proportional to temperature, serving various automotive applications from powertrain to infotainment. These temperature sensors have a typical accuracy from 0°C to +70°C of ±0.5°C. The TMP235-Q1 device provides a positive slope output of 10 mV/°C over the full –40°C to +150°C temperature range and a supply range from 2.3 V to 5.5 V. The higher gain TMP236-Q1 sensor provides a positive slope output of 19.5 mV/°C from –10°C to +125°C and a supply range from 3.1 V to 5.5 V.

The 9-µA typical quiescent current and 800-µs typical power-on time enable effective power-cycling architectures to minimize power consumption for battery-powered devices. A class-AB output driver provides a strong 500-µA maximum output to drive capacitive loads up to 1000 pF and is designed to directly interface to analog-to-digital converter sample and hold inputs. With excellent accuracy and a strong linear output driver, the TMP23x-Q1 analog output temperature sensors are cost-effective alternatives to passive thermistors.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TMP23x-Q1 Automotive Grade, High-Accuracy Analog Output Temperature Sensors datasheet (Rev. C) Nov. 15, 2019
Functional safety information TMP23x-Q1 Functional Safety FIT Rate and FMD May 12, 2020
Technical articles How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Technical articles How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical articles Powering infotainment systems of the future Oct. 07, 2019
Technical articles Driving industrial innovation with small-size sensors Sep. 12, 2019
E-book The Engineer's Guide to Temperature Sensing Apr. 22, 2019

Design & development

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

Hardware development

EVALUATION BOARD Download
29
Description
The TMP235EVM evaluation module (EVM) is a plug and play system to test and evaluate the TMP235 analog temperature sensor. The EVM utilizes a USB interface for control and data streaming, and can be to plugged into a PC USB port. With the simple GUI, temperature measurements can be streamed (...)
Features
  • Streaming temperature measurements
  • Data logging
  • Secondary sensing channel for comparison purposes
  • USB plug & play
  • Detachable sensor section for prototyping remote operation


CAD/CAE symbols

Package Pins Download
SC70 (DCK) 5 View options
SOT-23 (DBZ) 3 View options

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