TSEV01S01B90 Contact less Temperature Measurement Small Size High Accuracy Digital Interface Bus (SPI) DESCRIPTION The TSEV01S01B90 is a contact-less temperature measuring system for OEM use based on the detection of infrared radiation. The TSEV01S01B90 is equipped with an infrared sensor (Thermopile) in front. The Thermopile Sensor has to be pointed at the target object. The basic working principle is: Detection of infrared radiation with a Thermopile sensor, which turns incoming radiation to an analogue voltage Determination of sensor temperature using a thermistor Calculation of ambient and object temperature using a processing unit Providing the ambient and objects temperature at digital output bus (SPI) The TSEV01S01B90 module is suitable for a wide range of application where non-contact temperature measurement and high accuracy are required. FEATURES 0C - 100C Measurement Range Small Size Up to 2C Accuracy 2mA Current Consumption TSEV01S01B90 Rev E3 APPLICATIONS Contact less Temperature Measurement Climate Control Industrial Process Control Household Applications www.meas-spec.com 1/8 2012-05-29 TSEV01S01B90 ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings are limiting values of permitted operation and should never be exceeded under the worst possible conditions either initially or consequently. If exceeded by even the smallest amount, instantaneous catastrophic failure can occur. And even if the device continues to operate satisfactorily, its life may be considerably shortened. Parameter Supply Voltage Operating Temperature Storage temperature Humidity Humidity Symbol Vccmax Topmax Tstor HumL HumH Conditions Stabilized supply voltage Min -0.2 -10 -40 Typ Unit Max 4.0 85 85 85 50 -40C - +50C +50C - +85C V C C % % OPERATING CONDITIONS Parameter Supply Voltage Operating Temperature Range Emission Coefficient Symbol Vcc Top Conditions Stabilized supply voltage Min 2.6 0 0.98 Typ 3.3 Max 3.6 85 Unit Min Typ Max Unit V C SENSOR CONDITIONS If not otherwise noted, 3.3V supply voltage and object with =0.98 were applied. Parameter Symbol Field of View FOV Wavelength Range S Conditions Total field of view at 50% signal level 90 5.0 (cut on) m OPERATIONAL CHARACTERISTICS If not otherwise noted, 3.3V supply voltage and object with =0.98 were applied. Parameter Object Temperature Range Resolution Supply Current1) Data Output Rate Standard Start-Up Time Symbol Tobj Res I Fout tStart Conditions Min Typ 0 No output load Max Unit 100 0.02 3 C C mA Hz s Max 2 3 3 4 Unit C C C C 2 1 TOLERANCES If not otherwise noted, 3.3V supply voltage and object with =0.98 were applied. Parameter Accuracy Standard Temp 1) Accuracy Extended Temp. 1 2) Accuracy Extended Temp. 2 2) Accuracy Extended Temp. 3 2) Symbol AccS AccE1 AccE2 AccE3 Sensor Temp. 15 < Tsen < 35 Tsen < 15, Tsen > 35 15 < Tsen < 35 Tsen < 15, Tsen > 35 Object Temp. 40 < Tobj < 80 40 < Tobj < 80 Tobj < 40, Tobj > 80 Tobj < 40, Tobj > 80 OTHER TEMPERATURE RANGES AND ACCURACIES ARE AVAILABLE ON REQUEST. 1) 2) Proved while production Proved by design TSEV01S01B90 Rev E3 www.meas-spec.com 2/8 2012-05-29 TSEV01S01B90 SENSOR FIELD OF VIEW MECHANICAL DIMENSIONS Only use hatched areas for mechanical assembly (screws, nuts, etc). TSEV01S01B90 Rev E3 www.meas-spec.com 3/8 2012-05-29 TSEV01S01B90 TERMINALS Connector: solder pads Pin 1 2 3 4 5 6 Name VDD GND SCL MISO MOSI SCE Pin 1 Description Supply Voltage Ground SPI Clock SPI Master In / Slave Out SPI Master Out / Slave In SPI Chip Enable Type Supply Supply Interface Interface Interface Interface Pin 6 BLOCK DIAGRAM EEPROM Thermopile MCU (Signal Processing, Signal Compensation) SPI Interface TSEV01S01B90 Rev E3 www.meas-spec.com 4/8 2012-05-29 TSEV01S01B90 INTERFACE PARAMETER Parameter Baudrate Data Bits Chip Select Input Voltage Low Input Voltage High Output Voltage Low Output Voltage High Symbol FSPI Conditions Min 10 Typ Max 100 Unit kHz 0.9 V V V V 8 Yes Vcc = 3.3V 1mA Vcc = 3.3V, 1mA 2.1 0.3 3.0 SIGNAL DESCRIPTION SCE (Chip Select) 0 = Enable, 1 = Disable CKP 0 CKE 1 SAMPLE CODE Sample Code for sending 8 bits and reading 8 bits while sending 8 clocks. // Setting directions TRISC4 = 1; // SDI = Input TRISC5 = 0; // SDO = Output TRISC3 = 0; // SCL = Output // Reset SPI Lines RC5 = 0; // SDO RC3 = 0; // SCL for (c = 0; c < 8; c++) { cReceive = cReceive << 1; RC3 = 0; RC5 = (cTransmit >> (7 - c)); RC3 = 1; cReceive = cReceive | RC4; } RC3 = 0; RC5 = 0; return cReceive; TSEV01S01B90 Rev E3 // // // // // www.meas-spec.com 5/8 Shift Receive Register SCL = 0 Outupt next Bit on SDO SCL = 1 Input next Bit on SDI 2012-05-29 TSEV01S01B90 AMBIENT AND OBJECT TEMPERATUREMEASUREMENT Please refer following table for SPI commands to read object temperature and ambient temperature. Both values are transmitted in hundredth of degrees. Com Description Reply Bytes 0xA0 Sensor Temperature Sensor temperature in hundredth of degrees Celsius 2 0xA1 Object Temperature Object temperature in hundredth of degrees Celsius 2 SEQUENCE OF TRANSMISSION Enable SCE (SCE=0) before transmission of "Command". Release SCE (SCE=1) after reading last byte. Sensor MASTER First Transmission 8 Clocks 8 Bits Write 8 Bits Read Second Transmission 8 Clocks 8 Bits Write 8 Bits Read Third Transmission 8 Clocks 8 Bits Write 8 Bits Read Command (0xA0 or 0xA1) 8 bits ??? 8 bits 0x00 8 bits Temperature High Byte 8 bits 0x00 8 bits Temperature Low Byte 8 bits EXAMPLE OF TEMPERATURE CALCULATION For reading object temperature send: 0xA1 Return values i.e.: Byte(0) = ??? discard reading Byte(1) = 0x1A (=26) Byte(2) = 0xB0 (=176) Tobj = (256 * Byte(1) + Byte(2)) / 100 = (256 * 26 + 176) / 100 = 68.32C NAMING CONVENTION TSEV01S01B90 Rev E3 www.meas-spec.com 6/8 2012-05-29 TSEV01S01B90 TSEV01 S 01 B 10 Series Interface (S = SPI, I = I2C) Variant (01, 02, ...) Option (B = Basic, C = Comfort) Field of View at 50% Signal Level (5, 10, ...) TSEV01S01B90 Rev E3 www.meas-spec.com 7/8 2012-05-29 TSEV01S01B90 ORDER INFORMATION Please order this product using following: Part Number G-TPMO-020 Part Description TSEV01S01B90 EMC Due to the use of these modules for OEM application no CE declaration is done. Especially line coupled disturbances like surge, burst, HF etc. cannot be removed by the module due to the small board area and low price feature. There is no protection circuit against reverse polarity or over voltage implemented. The module will be designed using capacitors for blocking and ground plane areas in order to prevent wireless coupled disturbances as good as possible. DEFINITIONS AND DISCLAIMERS Application information - Applications that are described herein for any of these products are for illustrative purpose only. MEAS Deutschland GmbH makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Life support applications - These products are not designed for use in life support appliances, devices, or systems where malfunctions of these products can reasonably be expected to result in personal injury. MEAS Deutschland GmbH customers using or selling this product for use in such applications do so at their own risk and agree to fully indemnify MEAS Deutschland GmbH for any damages resulting from such improper use or sale. TECHNICAL CONTACT INFORMATION NORTH AMERICA EUROPE ASIA Measurement Specialties, Inc. 1000 Lucas Way Hampton, VA 23666 United States Phone: +1-800-745-8008 Fax: +1-757-766-4297 Email: sales@meas-spec.com Web: www.meas-spec.com MEAS Deutschland GmbH Hauert 13 D-44227 Dortmund Germany Phone: +49-(0)231-9740-0 Fax: +49-(0)231-9740-20 Email: info.de@meas-spec.com Web: www.meas-spec.com Measurement Specialties China Ltd. No. 26, Langshan Road High-tech Park (North) Nanshan District, Shenzhen 518057 China Phone: +86-755-33305088 Fax: +86-755-33305099 Email: info.cn@meas-spec.com Web: www.meas-spec.com The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer's technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. TSEV01S01B90 Rev E3 www.meas-spec.com 8/8 2012-05-29 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TE Connectivity: G-TPMO-022 (TSEV01S01C90)