TMP9A00-EP

This is an overview of the TMP9A00-EP and the OSS-ECAL offering for the TMP9A00-EP. The TMP9A00-EP is a temperatures sensor IC (±2.5 °C Accuracy from –55 °C to +130 °C, ±3.5 °C Accuracy from –55 °C to +150 °C) manufactured by Texas Instruments.
MCU interface : ADC

CAUTION:Please be sure to refer to the latest version of the Datasheet prior to actual design.

TMP9A00-EP

TMP9A00-EP

General description

The TMP9A00-EP device is a CMOS, precision analog output temperature sensor available in a tiny 5-pin SC70 package. The TMP9A00-EP operates from –55 °C to 150 °C on a supply voltage of 1.8 V to 5.5 V with a supply current of 4 µA. Operation as low as 1.8 V is possible for temperatures between 15 °C and 150 °C. The linear transfer function has a slope of –11.77 mV/°C (typical) and an output voltage of 1.8639 V (typical) at 0 °C. The TMP9A00-EP has a ±2.5 °C accuracy a from –55 °C to 130 °C and ±3.5 °C from 130 °C to 150 °C.
The 4-µA (maximum) supply current of the TMP9A00-EP limits self-heating of the device to less than 0.01 °C. When V+ is less than 0.5 V, the device is in shutdown mode and consumes less than 20 nA (typical).
The TMP9A00-EP is available in a 5-pin SC70 package that reduces the overall required board space.

Feature

  • ±2.5 °C Accuracy from –55 °C to +130 °C
  • ±3.5 °C Accuracy from –55 °C to +150 °C
  • Supply voltage range: 1.8 V to 5.5 V
  • Low power: 4 µA (maximum)
  • Microsize package: SC70
  • Supports defense, aerospace, and medical applications
    – Controlled baseline
    – One assembly/test site
    – One fabrication site
    – Extended product life cycle
    – Extended product-change notification
    – Product traceability

Application

  • Defense radio
  • Radar
  • Avionics
  • Sensors and imaging

OSS-ECAL specification

API Function

etSTS oTMP9A00( etCMD cmd, float32* rlt )

The oTMP9A00 function is an API function that executes TMP9A00-EP processing according to the command in the argument.

Return valueetSTSOSS-ECAL status code
eSTS_FINCompleted successfully
eSTS_ERR_MINMinimum temperature error (rlt is minimum temperature)
eSTS_ERR_MAXMaximum temperature error (rlt is maximum temperature)
eSTS_ERR_HAL_ADCHAL ADC Error
eSTS_ERR_COMMAND_CODECommand selection error
eSTS_ERR_OTHERS_RUNOther components are executing the process
eSTS_ERR_HAL_OTHERS_RUNOther application is running HAL
eSTS_ERR_ADC_OBJECTAD conversion object selection error
Parameter INetCMD cmdOSS-ECAL command code
eCMD_STARTCommand to start AD conversion.
eCMD_READCommand that reads the AD conversion value, converts the AD conversion value to a characteristic Temperature, and stores the Temperature in rlt.

AD conversion value to temperature conversion equation
Voltage value = (AD conversion value × VDD) / ( 2AD bit )
Temperature = ((voltage value – voltage offset value) / gain) + Temperature offset value (Min, Max Limit)
eCMD_START_READCommand that starts AD conversion, waits for AD conversion to finish, reads out the AD conversion value, converts the AD conversion value to a characteristic Temperature, and stores the Temperature in rlt.

AD conversion value to temperature conversion equation
Voltage value = (AD conversion value × VDD) / ( 2AD bit )
Temperature = ((voltage value – voltage offset value) / gain) + Temperature offset value (Min, Max Limit)
Parameter OUTfloat32* rltTemperature -55.0 to +130.0 [°C]

Command Correspondence Table by HAL

ArduinoeCMD_START_READ
ARM MbedeCMD_START_READ
Infineon ModusToolboxeCMD_START_READ
NXP MCUXpresso iMXRT1051B_1052BeCMD_START
eCMD_READ
eCMD_START_READ
Renesas SSPeCMD_START
eCMD_READ
eCMD_START_READ
STM STM32Cube FW_F4eCMD_START
eCMD_READ
eCMD_START_READ
etSTS oTMP9A00_START(void)

The oTMP9A00_START function is an API function to start AD conversion of the TMP9A00-EP.

Return valueetSTSOSS-ECAL status code
eSTS_FINCompleted successfully
eSTS_ERR_HAL_ADCHAL ADC Error
eSTS_ERR_OTHERS_RUNOther components are executing the process
eSTS_ERR_HAL_OTHERS_RUNOther application is running HAL
eSTS_ERR_ADC_OBJECTAD conversion object selection error

Function Correspondence Table by HAL

Arduino
ARM Mbed
Infineon ModusToolbox
NXP MCUXpresso iMXRT1051B_1052BX
Renesas SSPX
STM STM32Cube FW_F4X
etSTS oTMP9A00_READ( float32* rlt )

The oTMP9A00_READ function is an API function that checks for the end of AD conversion of the TMP9A00-EP, reads the AD conversion value, converts the AD conversion value to a characteristic temperature, and stores the temperature in rlt.

AD conversion value to temperature conversion equation
Voltage value = (AD conversion value × VDD) / ( 2AD bit )
Temperature = ((voltage value – voltage offset value) / gain) + Temperature offset value (Min, Max Limit)

Return valueetSTSOSS-ECAL status code
eSTS_FINCompleted successfully
eSTS_ERR_MINMinimum temperature error (rlt is minimum temperature)
eSTS_ERR_MAXMaximum temperature error (rlt is maximum temperature)
eSTS_ERR_HAL_ADCHAL ADC Error
eSTS_ERR_TIMEOUTADC Timeout error (AUTOSAR only)
eSTS_ERR_OTHERS_RUNOther components are executing the process
eSTS_ERR_ADC_OBJECTAD conversion object selection error
Parameter OUTfloat32* rltTemperature -55.0 to +130.0 [°C]

Function Correspondence Table by HAL

Arduino
ARM Mbed
Infineon ModusToolbox
NXP MCUXpresso iMXRT1051B_1052BX
Renesas SSPX
STM STM32Cube FW_F4XTime-out time HAL_MAX_DELAY
etSTS oTMP9A00_START_READ( float32* rlt )

The oTMP9A00_START_READ function is an API function that starts an AD conversion of the TMP9A00-EP, waits for the AD conversion to finish, reads the AD conversion value, converts the AD conversion value to a temperature characteristic, and stores the temperature in rlt.

AD conversion value to temperature conversion equation
Voltage value = (AD conversion value × VDD) / ( 2AD bit )
Temperature = ((voltage value – voltage offset value) / gain) + Temperature offset value (Min, Max Limit)

Return valueetSTSOSS-ECAL status code
eSTS_FINCompleted successfully
eSTS_ERR_MINMinimum temperature error (rlt is minimum temperature)
eSTS_ERR_MAXMaximum temperature error (rlt is maximum temperature)
eSTS_ERR_HAL_ADCHAL ADC Error
eSTS_ERR_OTHERS_RUNOther components are executing the process
eSTS_ERR_HAL_OTHERS_RUNOther application is running HAL
eSTS_ERR_ADC_OBJECTAD conversion object selection error
Parameter OUTfloat32* rltTemperature -55.0 to +130.0 [°C]

Function Correspondence Table by HAL

ArduinoX
ARM MbedX
Infineon ModusToolboxX
NXP MCUXpresso iMXRT1051B_1052BX
Renesas SSPX
STM STM32Cube FW_F4XTime-out time HAL_MAX_DELAY

HAL Support List

ManufacturerSDK/IDE ToolHAL NameVerHALNAMESupport
ArduinoArduino IDEArduino1.8.6ARDUINOX
ArmKeil MDK v6Mbed OS6.17.0MBEDX
DebianGNU/Linux10.3Linux
InfineonModusToolboxmtb-hal-cat12.4.3ModusToolboxX
NXPMCUXpresso SDKSDK_2.x_EVKB-IMXRT10502.16iMXRT1051B1052BX
NXPPlatformSDK_S32K1_2022_02AUTOSAR MCAL4.4MCAL
RenesasSynergy Software PackageHAL2.6.0SSPX
STMicroelectronicsSTM32CubeSTM32CubeF4V1.28.1STM32F4X
Development environment

MCU and development environment at the time of development. Even if the same HAL is used, different MCUs and development environments may not work together.

HALNAMEManufacturerBoardMCUIDE
ARDUINOArduino1.Mega 2560 Rev3
2.Arduino Pro Mini 3.3V
ATmega2560
ATmega328P
Arduino IDE 2.3.3
MBEDSTMicroelectronicsSTM32 Nucleo-64 boardsSTM32F401RETxArm Keil Studio Cloud
LinuxBeagleBoardBeagleBone BlackTI AM335x
ModusToolboxInfineonCY8CPROTO-063-BLE PSoC 6 BLE Prototyping KitCYBLE-416045-02ModusToolbox
iMXRT1051B1052BNXPIMXRT1050-EVKBi.MX RT1050MCUXpresso IDE
MCALSTMicroelectronicsS32K144EVB-Q100S32K144S32 Design Studio for S32 Platform
SSPRenesasS7G2 SKR7FS7G27H3A01CFCe² studio for Renesas Synergy
STM32F4STMicroelectronicsSTM32 Nucleo-64 boardsSTM32F401RETxSTM32CubeIDE

File Structure

FolderFileSummary
TMP9A00_HALNAME_010000/samplesample.c (.cpp)Sample application program
sample.hSample application header
TMP9A00_HALNAME_010000oTMP9A00.c (.cpp)OSS-ECAL program for TMP9A00-EP
oTMP9A00.hOSS-ECAL header for TMP9A00-EP
oss_ecal.hOSS-ECAL common header
TMP9A00_ARDUINO.inoSample application programs for Arduino
user_setting.c (.cpp)User configured constants and tables
user_setting.hUser configuration Header
oHAL_i2c_stm32f4.cHAL Program for STM32Cube FW_F4
oHAL_i2c_stm32f4.hHAL Header for STM32Cube FW_F4
readme.mdReadme
OSS-ECAL Terms of Use.txtOSS-ECAL Terms of Use

* For HALNAME, please refer to HAL Support.

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Built-in How to

How to incorporate OSS-ECAL into user programs

How to incorporate multiple OSS-ECALs in a user program (same MCU function)

How to incorporate multiple OSS-ECALs in a user program (different MCU function)

How to incorporate multiple identical electronic components into a user program

How to reduce the impact on user programs by replacing electronic components

CAUTION

The sample version of OSS-ECAL is not intended to be used with Threads (Tasks) or interrupts of different priority. Please do not use it as in the example below.

Example: If each sensor is assigned to the same ADC group and the OSS-ECAL API is executed in processes with different priorities, correct values may not be obtained.
ADC Gr0 Ch0 Temperature sensor AD22100A 100ms cycle Thread (low priority) to take in temperature
ADC Gr0 Ch1 Pressure sensor   MPX5999D Event interrupts (high priority) to take pressure

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