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TMP235

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±1.2°C 2.3V to 5.5V analog output temperature sensor with 10 mV/C gain

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±1.2°C 2.3V to 5.5V analog output temperature sensor with 10 mV/C gain

TMP235

ACTIVE
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Product details

Parameters

Local sensor accuracy (Max) (+/- C) 1.2 Operating temperature range (C) -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 Catalog Features Industry standard pinout 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

  • Cost-effective alternative to thermistors
  • Tight accuracy across a wide temperature range:
    • ±2.5°C (maximum): –40°C to +150°C (TMP235)
    • ±2.5°C (maximum): –10°C to +125°C (TMP236)
  • Available in two accuracy level variants:
    • A2 level: ±0.5°C (typical)
    • A4 level: ±1°C (typical)
  • Positive slope sensor gain, offset (typical):
    • 10 mV/°C, 500 mV at 0°C (TMP235)
    • 19.5 mV/°C, 400 mV at 0°C (TMP236)
  • Wide operating supply voltage range:
    • 2.3 V to 5.5 V (TMP235)
    • 3.1 V to 5.5 V (TMP236)
  • 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 and LM20 temperature sensors

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Description

The TMP23x devices are a family of precision CMOS integrated-circuit linear analog temperature sensors with an output voltage proportional to temperature engineers can use in multiple analog temperature-sensing applications. These temperature sensors are more accurate than similar pin-compatible devices on the market, featuring typical accuracy from 0°C to +70°C of ±0.5°C. The increased accuracy of the series is designed for many analog temperature-sensing applications.The TMP235 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 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 analog output temperature sensors are cost-effective alternatives to passive thermistors.

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Technical documentation

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Type Title Date
* Data sheet TMP23x Low-Power, High-Accuracy Analog Output Temperature Sensors datasheet (Rev. E) May 29, 2019
Technical article How to design an infrared thermometer quickly Apr. 07, 2020
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs Mar. 25, 2020
Technical article How to choose the right thermistor for your temperature sensing application Feb. 13, 2020
E-book E-book: An engineer’s guide to industrial robot designs Feb. 12, 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Application note Self Diagnostics and Environmental Sensing in IP Network Cameras Oct. 10, 2019
Technical article Driving industrial innovation with small-size sensors Sep. 12, 2019
Application note Temperature sensors: PCB guidelines for surface mount devices (Rev. A) Jan. 18, 2019
Application note Wearable Temp-Sensing Layout Considerations Optimized for Thermal Response (Rev. B) Oct. 23, 2018
User guide TMP23xEVM User's Guide (Rev. A) Jun. 14, 2018
White paper Temperature sensor solutions for low-voltage systems May 11, 2005

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
Description

The LP-MSP430FR2476 LaunchPad™ development kit is an easy-to-use evaluation module (EVM) based on the MSP430FR2476 value line sensing microcontroller (MCU). It contains everything needed to start developing on the ultra-low-power MSP430FR2x value line sensing MCU platform, including on-board (...)

Features
  • ULP FRAM technology based MSP430FR2476 16-bit MCU
  • On-board eZ-FET debug probe with EnergyTrace™ software technology available for ultra-low-power debugging
  • 40-pin LaunchPad development kit standard leveraging the BoosterPack™ plug-in module ecosystem
  • 2 buttons and 2 LEDs for user interaction
  • On-board (...)
View details
EVALUATION BOARD Download
document-generic User guide
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


View details

Software development

GUI FOR EVALUATION MODULE (EVM) Download
SBOC489.ZIP (21443 KB)

Reference designs

REFERENCE DESIGNS Download
Bi-directional, dual active bridge reference design for level 3 electric vehicle charging stations
TIDA-010054 — This reference design provides an overview on the implementation of a single-phase dual active bridge (DAB) DC/DC converter. DAB topology offers advantages like soft-switching commutations, a decreased number of devices and high efficiency. The design is beneficial where power density, cost, weight (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
48V/500W Three-phase Inverter with Smart Gate Driver Reference Design for Servo Drives
TIDA-01629 — Efficiency, protection, and integration are important design factors for compact DC-fed drives up to 60VDC. This reference design shows a three-phase inverter with nominal 48-V DC input and a 10-ARMS output current.  The 100-V intelligent three-phase gate driver DRV8350R with integrated buck (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design
TIDA-010065 — This reference design is a simplified architecture for generating an isolated power supply for isolated amplifiers for measuring isolated voltages and currents. A fully integrated DC/DC converter with reinforced isolation operating from a 5-V input with configurable 5-V or 5.4-V output (headroom for (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
RTD replacement for cold junction compensation reference design in a temperature sensor
TIDA-010019 — Temperature-sensing applications that use a thermocouple (TC) require an accurate local temperature sensor to achieve high accuracy. Solutions for design challenges such as cold-junction compensation (CJC) or including an ultra-low power TC analog front-end are highlighted and addressed in this (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
54-V, 1.5 kW, >99% Efficient, 70x69 mm2 power stage reference design for 3-phase BLDC drives
TIDA-010056 — This reference design demonstrates a 1.5-kW power stage for driving a three-phase brushless DC motor in cordless tools operating from a 15-cell Li-ion battery with a voltage up to 63-V. The design is a 70mm x 69mm compact drive, bringing 25-ARMS continuous current at 20-kHz switching frequency (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Non-isolated power architecture with diagnostics reference design for protection relay modules
TIDA-010055 — This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High efficiency power supply architecture reference design for protection relay processor module
TIDA-010011 — This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Smart Thermostat Localized Heat Compensation for Ambient Temperature Sensing Reference Design
TIDA-01596 — Localized thermostat heat generation is a leading cause for incorrect ambient temperature sensing near the return air plenum. This ultimately leads to overshoot in the HVAC cycle, resulting in costly energy bills. This reference design addresses this common problem associated with thermostat design (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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

Ordering & quality

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