TPIS 1S 1252 / 5025

Revision - Date: 2018/11/01 P r o d u c t S p e c i f i c a t i o n S EN SO R S O LU TIO N S DigiPileTM Thermopile Sensor TPiS 1S 1252 / 5025 Features and Benefits Introduction The DigiPile TPiS 1S 1252 is one sensor out of a new family of digital thermopile infrared sensors, brought to you from Excelitas Technologies. It combines the time-proven MEMS stateof-the art sensing element with a fully integrated A/D converter and an integrated ambient temperature sensor. An internal clock and control unit enables the TPiS 1S 1252 digital output detector to open a dialog with any outside microprocessor without additional components. . The move from analogue to digital enables the DigiPile to deliver a number of advantages like cost and space savings from fewer components (no external low offset / low noise amplifier is needed), significantly reduced susceptibility against environmental influences like e.g. humidity. The TPiS 1S 1252 is offered in a smallsized 3.8x3.8 mm2 CLCC package with an IR transmissive filter. ADC Tobj Decimator & Low Pass ADC Tamb Decimator & Low Pass Voltage Reference Oscillator Serial Interface TP VDD VSS Digital In/Out       Digital Output Sensor 17 Bit Tobj Output “direct link” 14 Bit Tamb Output “direct link” Operating voltage down to 2.4V Low current consumption Small-sized SMD package Applications  Non-contact temperature measurements  Thermometry Product 1 Thermopile Sensor Characteristics Symbol Min Typ Max Unit Operating Voltage VDD 2.4 3.3 3.6 V Supply Current IDD - 11 15 µA Operating Temperature To -20 70 °C Storage Temperature Ts -40 100 °C Specification Parameter Remarks / Conditions Operating Conditions VDD = 3.3 V The electrical parameters may vary from specified values accordance with their temperature dependence. Avoid storage in humid environment. Thermopile Characteristics Sensitive Area A 0.26 mm2 Absorber 0.51 x 0.51 mm2 Sensitivity of TP counts / T 400 counts/K Tobj = 60°C, Tamb = 25°C Sensitivity of TP counts / T 530 counts/K Tobj = 100°C, Tamb = 25°C 8 counts Tobj = 40°C, Tamb = 25°C 45 ms 90 counts/K Noise of TP Time Constant  Ambient Temperature sensor Characteristics Sensitivity of Tamb Count @ Tamb = 25°C 7000 Noise of ambient sensor 8200 9400 counts 5 16 counts Linear for Tamb from 0°C to 90°C Tamb = 298K (=25°C) Electrical Characteristics 2 ADC Resolution Tobj 17 Bits Max Count = 217 ADC Resolution Tamb 14 Bits Max Count = 214 ADC Sensitivity of Tobj 0.7 0.8 0.9 µV/count ADC Offset Tobj 64000 64500 65000 counts 0.2 VDD V Input Low Voltage VIL Input High Voltage VIH 0.8 VDD V Pull Down Current 200 µA Direct link pin to VDD Pull Up / Down Current 130 µA Direct link pin to VSS LPF Cut-Off Frequency 8 Hz Field of View 120 Degree Optical Axis 0 Optical Characteristics Optical Characteristics Average Filter Transmittance TA Average Filter Transmittance TA Cut on Wavelength λ (5 %) www.excelitas.com 75 5.2 +/- 10 > 77 5.5 At 50% intensity points Degree % Wavelength Range from 7.5 µm to 13.5 µm < 0.5 % Wavelength Range < 5 µm 5.8 µm At 25°C TPiS 1S 1252 / 5025 2 Product Figure 1 Typical filter transmission curve Specification Figure 2 Typical Field of View curve www.excelitas.com TPiS 1S 1252 / 5025 3 Product 3 Physical Configuration Specification Figure 3 Mechanical dimensions All dimensions are in mm. Housing: CLCC package with infrared transmissive filter Top view Side view Bottom view Figure 4 End view Pin out. Housing: CLCC package with infrared transmissive filter Pin out top view Side view Pin out bottom view 3.1 Soldering The detector TPiS 1S 1252 is a lead-free component and fully complies with the RoHS regulations, especially with existing roadmaps of lead-free soldering. Reflow soldering is recommended. A typical lead free reflow profile is shown in figure 5. Specific reflow soldering parameters depend on the solder alloy used. This device has a moisture sensitivity level of 1 (MSL 1). However, storage at high humidity conditions should be avoided. www.excelitas.com TPiS 1S 1252 / 5025 4 Product 300 Figure 5 Typical lead free solder profile Peak Temperature 235 - 255 °C 250 Specification Temperature [°C] 200 Reflow Zone time above ~217 °C typical 60 - 75 s Soaking Zone typical 60 - 90 s 150 100