LL HUMIREL TECHNICAL DATA Advance Information HTM1735 Compliant with RoHS recommendations ANALOG VOLTAGE RELATIVE HUMIDITY AND TEMPERATURE MODULE Based on the rugged HS1101LF humidity sensor, HTM1735 is a dedicated humidity and temperature transducer designed for OEM applications where a reliable and accurate measurement is needed. Direct interface with a micro-controller is made possible with the modules humidity linear voltage and direct NTC outputs. HTM1735 is designed for an optimized board to board connection. Main features Suitable for direct board assembly Product free from Lead, Cr (6+), Cd and Hg Not affected by repeated condensations Full interchangeability High reliability and long term stability Typical 1 to 3.6 Volt DC output for 0 to 100% RH at 3 V DC supply Humidity calibrated within +/- 2% RH @ 55% RH Temperature measurement through NTC 10 kf&2 +/- 3% direct output * Ratiometric to voltage supply within the specified range Maximum ratings Ratings Symbol Value Unit OPERATING RANGE Storage Temperature Tetg -40to+105} C \ Supply Voltage (Peak) Vee 7 Vac z 75 Humidity Operating Range RH 0 to 100 %RH : XS Temperature Operating Range Ta -40 to +100 ae e Maximum Output Current (Peak) T peak 5 mA 5 * Maximum Power Pd 20 mw -40 -20 20 40 60 Electrical characteristics (@T=23C, @Vec=5V, Rp>1M unless otherwise noted) Characteristics Symbol | Min Typ Max Unit Humidity Measuring Range RH 0 100 %RH Relative Humidity Accuracy (10% to 95%RH) +3 +5 %RH Voltage Supply* Voc 4.75 5 5.25 Vac Nominal Output @55%RH V out 2.42 2.48 2.54 Vv Current Consumption I... 2.8 4 mA Temperature coefficient (10 to 50C) Tee -0.05 -0.1 RHC Humidity Average Sensitivity AmV/RH +26 mV/%RH NTC nominal output @25C / Tolerance +/-3% R 9.7 10 10.3 kQ Recovery time after 150 hours of condensation t 10 8 Humidity hysteresis +/-1 %RH Output impedance Zz 70 Q Sink current capability (Ry, = 33 kOhms) I 150 nA Warm up time tw 200 ms Humidity Resolution 0.4 %~RH Humirel HTM1735 DataSheet / HPC035 Rev G March 2005LL HUMIREL TECHNICAL DATA Advance Information Measurement Conditions e HTM1735 is specified for accurate measurements within 10 to 95 %RH. e Excursion out of this range (< 10% or > 95% RH, including condensation) does not affect the reliability of HTM1735 characteristics HTM1735 Modeled Linear Voltage Output (Vec=SV) 1000 | | METRPLOGY a] HTM 73$5 RANGE ot] om E | ee a L a al] 20 0 a 60 ci) oo 1 Petathre Humidity 4000 S Le = 3000 o | so > L] B 2000 2 Ls LINEAR EQUATION 1000 o 10 20 30 40 50 60 70 80 90 Relative Humidity (ARH) 100 Error Budget Conditions and Linearity Error Delta in % RH Relative Humidity (% PH) Delta In % RH Relative Hurmbitty (% AH} Reference Output Values RH(%) Vout(mV)]_ RH (%) Vout (mV) 10 1325 55 2480 15 1465 60 2605 20 1600 65 2730 25 1735 70 2860 30 1860 75 2990 35 1990 80 3125 40 2110 85 3260 45 2235 90 3405 50 2360 95 3555 HTM1735 ERROR LIMITS LINEAR EQUATION Vout = 25.68RH + 1079 RHA = 6.03892 Vag - 41.98 with Vag in mV and RH in % HTM1735 LINEARITY ERRORS Humirel HTM1735 DataSheet / HPC035 Rev G March 2005( FULINMIFREL TECHNICAL DATA Advance Information CHARACTERISTICS Temperature sensor (ta = 25c) Nominal resistance @ 25C Beta value : B25/100 Temperature measuring range Nominal Resistance Tolerance B value tolerance Typical temperature output Time Depending on the needed temperature measurement range and associated accuracy, we suggest two methods to access to the NTC resistance values. A,= Ree A, R, Th 8 @ et Te] mt 1-1 ed -29 -28 -27 -26 -25 -24 -23 -22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 a] 144790 136664 129054 121925 115243 109030 103115 97565 92354 87460 82923 78581 7AA97 70655 67039 63591 60381 57356 54503 51813 49204 46767 44467 42296 40247 38279 36455 34731 Temperature in K oar 16636 15444 14343 13325 12383 11516 10705 9953 9257 8612 8020 7463 6947 6468 6023 5606 222 4865 4533 4225 3932 3662 341] 3177 2960 2756 2568 2393 1 oo = WOON OA mMAR WN CO NTC resistance in Qat temperature Tin K NTC resistance in Qat rated temperature in K et Ted MDa] a] 33100 31557 30029 28627 27299 26042 24852 23773 22708 21698 20739 19829 18959 18128 17338 16588 15876 15207 14569 13962 13384 12834 12280 11777 11297 108.40 10404 10000 B value,material-specific constant of the NTC thermistor Base of natural logarithm (e =2.71828) pT 2230 2078 1932 1799 1675 1560 1452 1355 1261 1174 1093 1017 946 879 817 759 705 654 607 563 522 484 447 413 382 353 325 300 The actual characteristic of an NTC thermistor can, however, only be roughly described by the exponential relation,as the material parame ter B in reality also depends on temperature. So this approach is only suitable for describing a restricted range around the rated temperature or resistance with sufficient accuracy. (2) For practical applications a more precise description of the real RIT curve may be required. Either more complicated approaches (e.g the Steinhart-Hart equation) are used or the resistance! temperature relation as given in tabulated form. The below table has been experimentally determined with utmost accuracy for temperature increments of 1 degree. Tod eg Ps cs Md pled Ou ee ca uo eats 3360 213 27 9218 300 55 3237 208 28 8853 299 56 3126 204 29 8506 297 57 3019 200 30 8178 296 58 2917 197 31 7866 294 59 2819 193 32 7568 292 60 2720 189 33 7283 290 l 2629 185 34 7011 287 62 2542 182 35 6734 284 63 2458 178 36 6484 281 64 2378 175 37 6244 278 65 2304 171 38 6015 275 66 2229 168 37 5796 271 67 2158 165 40 5575 267 68 2089 161 4] 5373 264 69 2022 158 42 5180 260 70 1960 155 43 4995 257 71 1898 152 44 4817 253 72 1839 149 45 4636 248 73 1782 146 46 4473 245 74 1727 143 47 4316 24] 75 1673 140 48 4166 237 76 1622 138 4? 4021 233 77 1573 135 50 3874 229 78 1526 132 5] 3737 225 79 1480 130 52 3606 221 80 1432 127 53 3481 217 Humirel HTM1735 DataSheet / HPC035 Rev G March 2005LLP FUMIREL TECHNICAL DATA Advance Information Resistance to physical and chemical stresses HTM1735 has passed through qualification processes of HUMIREL including vibration, shock, storage, high temperature and humidity. HTM1735 contains circuits to protect its inputs and outputs against Electrostatic discharges (ESD) up to +15kV, air discharge. Additional tests under harsh chemical conditions demonstrate good operation in presence of salt atmosphere, SO, (0.5%), H,5 (0.5%), 03, NO, NO, CO, CO), Softener, Soap, Toluene, acids (H280,, HNO3, HCl, HMDS, Insecticide, Cigarette smoke, a non exhaustive list. HTM17335 1s not light sensitive. Specific Precaution HTM1735 is not protected against reversed polarity - Check carefully when connecting the device. Pin Out Assignment and Package Outline Pin Out Assignment Function NTC - Temperature Ground Vcc Voltage supply Vout - Humidity BON A> HTM1735 STD Package Outline Package Outline Footprint Outline Dim Min (mm) Max (mm) Dim Min (mm) Max (mm) A 34 36 A 34 36 B 12.5 13.5 B 12.5 13.5 Cc 30.25 Typical D 5.08 Typical D 5.08 Typical F 2.36 Typical E 13.1 Typical G 3.94 Typical H @1.02 Typical 3D VIEW FOOT PRINT (TOPVIEW) Humirel HTM1735 DataSheet / HPC035 Rev G March 2005TECHNICAL DATA LL HUMIREL Advance Information HTM1735 SMD Package Outline Package Outline Footprint Outline Dim Min (mm) Max (mm) Dim Min (mm) Max (mm) A 34 36 F 27.81 Typical B 125 13.5 G 1.27 Typical Cc 30.25 Typical H 3.33 Typical D 5.08 Typical J 2.04 Typical E 6.65 Typical K 3.18 Typical 3D VIEW FOOT PRINT (TOPVIEW) gs pai lb iT i 4 A J 6 , i ' . a 3 1 In F | Package Outline Dim Min (mm) Max (mm) A 34 36 B 12.5 13.5 c 30.25 Typical D 5.08 Typical o , E 6.2 Typical 3D View ORDERING INFORMATION: HPP8035D033 for HTM1735 STD (through hole board to board connection) HPP8035D034 for HTM1735 SR (with holes for customized wiring) HPP8035D035 for HTM1735 SMD (SMD board to board connection) Note: HTM1735 series replace HTM1505 series and are fully compatible with mechanical, electrical and metrological specifications. The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsability is assumed for inaccuracies. Furthermore, this information does net convey to the purchaser of semiconductor devices any license under the patent rights to the manufacturer. Humirel reserves the right to make changes without further notice to any product herein. Humirel makes no warranty, representation of guarantee regarding the suitability of its product for any particular purpose, nor does Humirel 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, including Typical must be validated for each customer applications by customer's technical experts. Hurnirel does not convey any license under its patent rights nor the rights of others. Humirel products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other application intended to support or substain life, or for any application in which the failure of the Humirel product could create a situation where personal injury or death may occur. Should buyer purchase or use Humirel products for any such unintended or unauthorized application. Buyer shall indemnity and hold Hurnirel and its officers, employees, subsidiaries, affiliates and distributors harmless against all claims, costs, damages and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if claim alleges that Humirel was negligent regarding the design or manufacture of the part. Humirel is 4 registered trade mark of Humirel Humirel HTM1735 DataSheet / HPC035 Rev G March 2005