DatasheetTEE501 Digital Temperature Sensor

TEE501 Digital Temperature Sensor The TEE501 digital temperature sensing element meets highest requirements in terms of accuracy and reliability. Its diverse applications range from industrial and building automation to medical devices or white goods. A footprint of only 2.5 x 2.5 mm and integrated pull-up resistors facilitate the design-in of the TEE501. The DFN 8-pin package allows up to 8 devices on one I2C interface. Furthermore, the TEE501 convinces with an operating range from -40 to 135°C and an accuracy of up to ±0.2 °C, which makes it an ideal solution for demanding measuring tasks....

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Table 1: List of TEE501 specific acronyms v1.5 / Modification rights reserved | 5

Bottom view Thermal pad internally connected to GND Figure 1: DFN8 pin configuration www.epluse.com v1.5 / Modification rights reserved | 6

Temperature Sensor Operating Range Long Term Drift 1) Resolution is chosen by the corresponding measurement command. 2) The stated “Noise / Repeatability” is 3 times the standard deviation (3σ) of multiple consecutive measurement values at constant environmental conditions. 3) Time for achieving 63 % of a step function, valid at 25°C and 1m/s airflow. The actual response time in application strongly depends on the surrounding of the sensor in the final application (heat conductivity of sensor substrate, dead volume, …). Table 3: Temperature sensor parameters Figure 3: Temperature sensor accuracy...

4.1 Absolute Maximum Ratings 1) Without I2C communication and when not measuring. Table 5: General operation v1.5 / Modification rights reserved | 8

Table 8: General timing tRDY= tPWRU + tMEAS = tPWRU + tT + tCALC = H.3 ms v1.5 / Modification rights reserved | 9

Figure 4: Measurement duration Table 9: Measurement resolution The supply pins must be equipped with a bypass ceramic capacitor of at least 100 nF. Sensor Power-up As soon as VDD exceeds the POR voltage VPORP, the device gets initialized. After tPWRU, the initialization procedure is completed and a single shot measurement is carried out automatically. After the measurement time (tT+tCALC) the measured values are available at the I2C interface. The HI pin indicates the availability of a valid temperature measurement after power-up (see chapter 1 Pin Configuration). www.epluse.com v1.5 / Modification...

Datasheet TEE501 F:\proj\P\2016\P201607_EuE_ASIC_ASTRID1\04_DOC\Berechnungen\PWRup_HIpin_Modi Voltage VDD 3.3V VPORP tCALC tMEAS Automatic measurement at power-up IDLE MODE Figure 5: Sensor behaviour at power-up 20.09.2021 The I²C communication is based on the NXP UM10204 I²C bus specification and user manual1). The TEE501 supports the modes “standard“ (100 kHz), “fast mode“(400 kHz) and “fast mode plus” (1 000 kHz). The sensor works as SLAVE and needs to be queried by a MASTER. Please consider self-heating due to a low RPU when the sensor has to sink the pull-up current. In this case, the residual...

The HI pin indicates that the recent T measurement was invalid: The status of each measurement (valid/invalid) can be read out from the status register 2. b. During power-up until the start-up measurement and calculation is finished (please refer to Figure 5 in chapter 5.1 Supply Pins.) If the HI pin is not used, connect it to GND or use a pull-up resistor to connect it to the VDD potential. Temperature [°C] = (Temperature MSB x 256 + Temperature LSB) /100 www.epluse.com v1.5 / Modification rights reserved | 12

Measurement Modes There are two different operation modes to communicate with the sensor: 1.shotSingle Single mode Shot Measurement G:\Produkte\HTEx01\501\Archive_Diagrams&Drawings\PWRup_HIpin_Modi tPWRU tMEAS Time depends on COMMAND Time depends on COMMAND time time IDLE MODE COMMAND COMMAND Break Break Measurement Measurement IDLE MODE tMEAS tMEAS tMEAS Time depends on measurement Time depends on measurement interval, 1 s at start‐up interval, 1 s at start‐up tMEAS tMEAS tMEAS Time depends on measurement Time depends on measurement interval, 1 s at start‐up interval, 1 s at start‐up time time...

MEASUREMENT ONGOING tMEAS N Psingle shot 1 8: Start Figure 1 Without clock stretching MEASUREMENT FINISHED 16 BIT COMMAND measurement readout 16 BIT COMMAND Without clock stretching W FREE A A FOR OTHER CMD MSBBUS MEMBERS I2C-ADDRESS SCL S 0 0 0 SCL FREE FOR OTHER BUS MEMBERS A 4 3LSB 2 1 0 7 6 5 CMD W A A Figure Clock stretching during measurement CMD MSB S 9:I2C-ADDRESS CMD LSB MEASUREMENT ONGOING 0 0 0 16 BIT COMMAND MEASUREMENT FINISHED MEASUREMENT ONGOING tMEAS In case a command with clock stretching enabled has been issued, the slave holds SCL low until the calculation has been With clock...

Once issued, measurements and calculations are started automatically with a given measuring interval and resolution. The standard measurement interval is 1s and the T resolution is 13 bit. If necessary, the measurement frequency and the measurement resolution can be changed (see chapter 6.13 Change Sensor Settings). This mode does not support clock stretching. Figure 13: Fetch command This command is also suitable for reading out the measured data generated by the power-up procedure. www.epluse.com v1.5 / Modification rights reserved | 15

The periodic measurement mode can be stopped using the break command. After finishing an ongoing measurement, the sensor will enter the idle mode. An ongoing measurement can delay the transition into the idle mode. General call 1st byte General call 2nd byte Figure 16: Reset through general call In order to reset the I2C interface only, keep SDA high while toggling SCL nine times or more. This must be followed by a start condition preceding the next command. This sequence does not affect any configuration, status register or system status. www.epluse.com v1.5 / Modification rights reserved |...