TMP461-SP

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Radiation-hardness-assured (RHA), high-accuracy remote and local temperature sensor

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Product details

Parameters

Local sensor accuracy (Max) (+/- C) 2 Product type Remote Operating temperature range (C) -55 to 125, 25 to 25 Supply voltage (Min) (V) 1.7 Interface type I2C, SMBus, 2-Wire Supply voltage (Max) (V) 3.6 Supply current (Max) (uA) 2 Temp resolution (Max) (bits) 12 Features ALERT Remote channels (#) 1 Addresses 9 Rating Space open-in-new Find other Digital temperature sensors

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Features

  • QMLV Qualified: 5962R-1721801VXC
    • Thermally Enhanced HKU Package
    • Radiation-Hardness-Assured (RHA) up to Total Ionizing Dose (TID) 100 krad(Si) at low dose rate (LDR) of 10 mrad/s
    • Single Event Latchup (SEL) Immune to 76 MeV·cm2/mg at 125°C
    • 10-Lead HKU Ceramic Package
  • Remote Diode Temperature Sensor Accuracy: ±1.5°C (Across Extended Temperature Range of [–55°C to 125°C])
  • Local Temperature Sensor Accuracy: ±2°C (Across Extended Temperature Range of [–55°C to 125°C])
  • Enables Measurement Of Remote Diode Temperatures in the Range of –64°C to 191°C
  • Resolution for Local and Remote Channels: 0.0625°C
  • Supply and Logic Voltage Range: 1.7 V to 3.6 V
  • 35-µA Operating Current (1 SPS),
    3-µA Shutdown Current
  • Series Resistance Cancellation
  • η-Factor and Offset Correction
  • Programmable Digital Filter
  • Diode Fault Detection
  • Two-Wire and SMBus™ Serial Interface Compatible with Pin-Programmable Address

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Description

The TMP461-SP device is a radiation-hardened, high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, analog-to-digital converters (ADC), digital-to-analog converters (DAC), microcontrollers, or field-programmable gate arrays (FPGA). Temperature is represented as a 12-bit digital code for both local and remote sensors, giving a resolution of 0.0625°C. The two-wire serial interface accepts the SMBus communication protocol with up to nine different pin-programmable addresses.

Advanced features such as series resistance cancellation, programmable nonideality factor (η-factor), programmable offset, programmable temperature limits, and a programmable digital filter, are combined to provide a robust thermal monitoring solution with improved accuracy and noise immunity.

The TMP461-SP is ideal for multi-location, high-accuracy temperature measurements in a variety of distributed telemetry applications. The integrated local and remote temperature sensors simplify spacecraft housekeeping activities by providing an easy way of measuring temperature gradients. The device is specified for operation over a supply voltage range of 1.7 V to 3.6 V, and a temperature range of –55°C to 125°C.

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Technical documentation

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Type Title Date
* Datasheet TMP461-SP Radiation-Hardness-Assured (RHA), High-Accuracy Remote and Local Temperature Sensor datasheet (Rev. B) Feb. 19, 2018
* Radiation & Reliability reports Single-Event Effects Test Report for TMP461-SP High-Accuracy Remote and Local (Rev. A) Feb. 12, 2020
* Radiation & Reliability reports TMP461-SP Total Ionizing Dose (TID) Report (Rev. B) Oct. 02, 2018
* Radiation & Reliability reports TMP461-SP (5962R1721701VXC) Neutron Displacement Damage Characterization Sep. 10, 2018
* SMD TMP461-SP SMD 5962-17218 Mar. 22, 2018
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 Driving industrial innovation with small-size sensors Sep. 12, 2019
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing Jun. 17, 2019
White papers Preview: Radiation Handbook for Electronics (Rev. A) Jun. 07, 2019
White papers Radiation Handbook for Electronics (Rev. A) May 21, 2019
User guides TSW12D1620EVM-CVAL User's Guide (Rev. A) Jan. 29, 2019
Application notes Measuring Die Temperature with Remote Diode Sensing in Space Dec. 10, 2018
Technical articles How sensor technology is evolving to meet cold chain needs Jun. 18, 2018

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
499
Description

The TMP461-SP device is a high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors (...)

Features
  • Enables full evaluation of TMP461
  • Programmable non-ideality factor
  • Series resistance cancellation
  • Address select option
  • 12-bit resolution
EVALUATION BOARDS Download
document-generic User guide
10699
Description

The TSW12D1620EVM-CVAL is a 1.5-GHz wideband receiver evaluation module (EVM) that includes ceramic engineering models of the amplifier, analog-to-digital converter (ADC), clocking, temperature sensor, microcontroller, and power solution. The board is best suited for (...)

Features
  • Complete TI space-rated signal-chain and power wideband receiver solution
    • Wideband ADC12D1620QML-SP (12-bit, dual 3.2 GSPS or single 6.4 GSPS)
    • Wideband fully-differential amplifier LMH5401-SP (6.5-GHz bandwidth)
    • Remote-diode ADC temperature-monitoring TMP461-SP
    • Power management (TPS50601A-SP (...)
DEVELOPMENT KITS Download
Description
This is a development kit for the Xilinx® XQRKU060 FPGA with industrial -1 speed grade. ADA-SDEV-KIT2 has a modular board design with a XRTC-compatible configuration module, two FMC connectors, DDR3 DRAM, system monitoring, and space-grade TI power management and temperature-sensing solutions.

Software development

SUPPORT SOFTWARE Download
SBAC235.ZIP (6419 KB)

Design tools & simulation

SIMULATION MODELS Download
SLAM269.ZIP (53 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
Space-grade reference design using integrated digital-output temperature sensor
TIDA-070004 — This reference design illustrates the fact that several spacecraft projects provide a system health status telemetry that ground personnel monitor in real time. This reference design shows an example using a digital output temperature sensor to acquire temperature data on a sub-system using a (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
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