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Compliant with RoHS regulations RELATIVE HUMIDITY AND TEMPERATURE MODULE
HTG3400 Series
Based on the rugged HUMIREL humidity sensor, the HTG3400 series are dedicated humidity and temperature plug and play transducers designed for OEM applications where reliable and accurate measurements are needed. Direct interface with a micro-controller is made possible with the modules humidity linear frequency and direct NTC outputs. The HTG3400 series are designed for high volume and demanding applications, where power consumption is critical.
* HTG SERIES GENERAL CHARACTERISTICS
Main Features
Suitable for small bulk assembly Product free from Lead, Cr (6+), Cd and Hg. Compliant with RoHS Reliability not affected by repeated condensation Full interchangeability. Better than +/-3%RH and +/-0.25C Demonstrated reliability and long term stability Humidity calibrated within +/- 3% RH @ 55% RH Temperature measurement through NTC direct output Ratiometric to voltage supply within the specified range HTG3400 Series are also available with a Humidity Linear Voltage Output : HTG3500 Series (HPC123_0)
OPERATING RANGE
100 Peak Condition at 450g/kg
Maximum Ratings
Storage Temperature Supply Voltage (Peak) Humidity Operating Range Temperature Operating Range Maximum Output Current (Peak) Maximum Power Tstg Vcc RH Ta I peak Pd - 40 to +125 20 0 to 100 -40 to +110 3 10 C Vdc %RH C mA mW
RELATIVE HUMIDITY IN %RH 75
Maximum Humidity of 250g/kg 50
25
0 -40 -20 0 20 40 60 80 100 TEMPERATURE IN C
Electrical Characteristics
(@T=23C, RL>1M unless otherwise noted)
Humidity Measuring Range Relative Humidity Accuracy (10% to 95%RH) Temperature coefficient (10C to 50C) Recovery time after 150 hours of condensation Humidity hysteresis Output impedance Sink current capability (RL_Min = 8 kOhms) (1) Warm up time Constant Time (at 63% of signal) 33%RH to 75%RH (2)
(1) (2)
RH Tcc t Z I tw
0
3 -0.05 10 +/-1
100 5 -0.1
50 1 150 5 10
%RH %RH %RH/C s %RH mA ms s
Conditions of sink current: Vout + 0.054V (3%RH) at Vout = 0.600 V (Vout min) At 1m/s air flow
*
Nominal resistance @ 25C Beta value : B25/50 Temperature measuring range Nominal Resistance Tolerance at 25C B value tolerance Constant Time
* Except for low temperatures
R B Ta Rn B
9.9 3346 -40
10 3380 1 1 10
10.1 3414 85
k K C % % s
________________________________________________________________________________________ Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
1
Power Supply option of HTG3400 Series at 5VDC
Continuous Mode: When powering HTG3400 series modules at 5VDC in continuous mode, an initial 3-minute stabilization time (ts) is necessary to reach the temperature and the RH outputs with an optimum accuracy.
Pulsed Mode: When powering HTG3400 series modules in pulsed mode, accurate temperature and RH measurement is reached instantaneously. Time up (Tup) must be of 5% of the cycle time. Minimum time up (Tup) is 150 ms. Thus minimium cycle time is 3s.
Supply Voltage (V) Tup = 5% of cycle time Vcc = 5V
Time Cycle time
Power Supply option of HTG3400 Series at 3.3VDC
At 3.3VDC power supply, there is no measurable impact of type of powering on temperature and RH accuracy.
________________________________________________________________________________________ Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
2
Nomenclature
HTG3XYZ yyy
Connector Type Voltage Supply: 3 for 3.3 Volts 5 for 5 Volts Mechanical Package: 1 for Housing 1 with screw/fastener mount capability 3 for Housing 3 with PTFE membrane Output Type: 4 for Frequency 5 for Voltage
* SPECIFIC ELECTRICAL AND METROLOGICAL CHARACTERISTICS
Electrical Characteristics
HTG34Y3
Voltage Supply (1) (2) Nominal Output @55%RH (in continuous mode and pulsed mode) Humidity Average Sensitivity (in continuous mode and pulsed mode) Output Noise Output High Level Output Low Level Sink Current Capability (VOL - 0.1V) Source Current Capability (VOH + 0.1V) Current consumption (in continuous and pulsed mode) Measurement Window Time
(1) (2)
Vcc Fout Hz/%RH n VOH VOL Isink Isource Icc -
3.0 Vcc - 0.15 0.0 250
3.3 4960 +36 Vcc - 0.10 0.0 1.5 -
3.46 +/- 20 Vcc 0.1 500 250 2 -
Vdc Hz Hz Hz V V A A mA ms
Module is ratiometric to voltage supply Maximum power supply ramp up time to VCC should be less than 20ms
HTG34Y5
Voltage Supply (1) (2) Nominal Output @55%RH (in pulsed mode) Nominal Output @55%RH (in continuous mode) Humidity Average Sensitivity (in pulsed mode) Humidity Average Sensitivity (in continuous mode) Output Noise Output High Level Output Low Level Sink Current Capability (VOL - 0.1V) Source Current Capability (VOH + 0.1V) Current consumption (in continuous and pulsed mode) Measurement Window Time
(1) (2)
Vcc Fout Fout Hz/%RH Hz/%RH n VOH VOL Isink Isource Icc -
4.75 Vcc - 0.5 0.0 250
5 5075 4960 +43 +41 Vcc - 0.4 0.0 2.8 -
5.25 +/- 20 Vcc 0.1 500 350 5 -
Vdc Hz Hz Hz Hz Hz V V A A mA ms
Module is ratiometric to voltage supply Maximum power supply ramp up time to VCC should be less than 20ms
________________________________________________________________________________________ Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
3
Humidity Sensor !
Reference Output Values (Vcc = 5V) In Pulsed Mode (5%)
%& ' 10 15 20 25 30 35 40 45 50 " % (' 2970 3230 3480 3725 3965 4200 4425 4645 4860 %& ' 55 60 65 70 75 80 85 90 95 " % (' 5075 5280 5485 5690 5885 6085 6280 6475 6670
%& ' 10 15 20 25 30 35 40 45 50
"
#
$
Reference Output Values (Vcc = 5V) In Continuous Mode
" % (' 2950 3195 3435 3670 3900 4125 4345 4550 4750 %& ' 55 60 65 70 75 80 85 90 95 " % (' 4960 5150 5345 5545 5725 5915 6105 6285 6465
Fout = 6.39E-4 RH3 - 1.828E-1RH2 + 56.29 RH + 2424 RH = -8.97E-11Fout3 + 2.318E-6 Fout2 + 7.19E-3 Fout - 29.38 with Fout in Hz and RH in % Fout = 43.15 RH + 2647 RH = 0.0231 Fout - 61.12 with Fout in Hz and RH in %
POLYNOMIAL EQUATION
Fout = 6.03E-4 RH3 - 1.77E-1RH2 + 53.97 RH + 2425 RH = -9.07E-11Fout3 + 2.47E-6 Fout2 + 7.20E-3 Fout - 30.30 with Fout in Hz and RH in % Fout = 41.05 RH + 2646 RH = 0.0243 Fout - 64.19 with Fout in Hz and RH in %
POLYNOMIAL EQUATION
LINEAR EQUATION
LINEAR EQUATION
"
#
$
Reference Output Values (Vcc = 3.3V) In any power mode
%& ' 10 15 20 25 30 35 40 45 50 " % (' 3270 3460 3650 3845 4035 4225 4410 4595 4780 %& ' 55 60 65 70 75 80 85 90 95 " % (' 4960 5140 5320 5495 5670 5840 6010 6180 6345
Fout = -2E-5RH3 - 0.033RH2 + 39.94RH + 2867 RH = 5.7E-11 Fout3 + 7.4E-8 Fout2 + 2.42E-2 Fout - 70.10 with Fout in Hz and RH in % Fout = 36.18 RH + 2867 RH = 0.02755 Fout - 80.97 with Fout in Hz and RH in %
POLYNOMIAL EQUATION
LINEAR EQUATION
________________________________________________________________________________________ Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
4
Temperature Sensor
Typical temperature output Depending on the needed temperature measurement range and associated accuracy, we suggest two methods to access to the NTC resistance values.
RT = RN e
RT RN T, TN e
( -
11 ) T TN
NTC resistance in at temperature T in K NTC resistance in at rated temperature T in K Temperature in K Beta value, material specific constant of NTC Base of natural logarithm (e=2.71828)
The exponential relation only roughly describes the actual characteristic of an NTC thermistor can, however, as the material parameter in reality also depend on temperature. So this approach is suitable for describing a restricted range around the rated temperature or resistance with sufficient accuracy. For practical applications, a more precise description of the real R/T curve may be required. Either more complicated approaches (e.g. the Steinhart-Hart equation) are used or the resistance/temperature relation as given in tabulation form. The below table has been experimentally determined with utmost accuracy for temperature increments of 1 degree. Actual values may also be influenced by inherent self-heating properties of NTCs. Please refer to Humirel Application Note HPC106-0 "Low power NTC measurement". Temperature Look-Up Table in pulsed mode or for a 3.3 continuous voltage supply
%) '
%* '
%) '
%* '
%) '
%* '
%) '
%* '
-40 -39 -38 -37 -36 -35 -34 -33 -32 -31 -30 -29 -28 -27 -26 -25 -24 -23 -22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1
195652 184917 174845 165391 156513 148171 140330 132958 126022 119494 113347 107565 102116 96978 92132 87559 83242 79166 75316 71677 68237 64991 61919 59011 56258 53650 51178 48835 46613 44506 42506 40600 38791 37073 35442 33892 32420 31020 29689 28423
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
27219 26076 24988 23951 22963 22021 21123 20267 19450 18670 17926 17214 16534 15886 15266 14674 14108 13566 13049 12554 12081 11628 11195 10780 10382 10000 9634 9284 8947 8624 8315 8018 7734 7461 7199 6948 6707 6475 6253 6039
40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
5834 5636 5445 5262 5086 4917 4754 4597 4446 4301 4161 4026 3896 3771 3651 3535 3423 3315 3211 3111 3014 2922 2834 2748 2666 2586 2509 2435 2364 2294 2228 2163 2100 2040 1981 1925 1870 1817 1766 1716
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110
1669 1622 1578 1535 1493 1452 1413 1375 1338 1303 1268 1234 1202 1170 1139 1110 1081 1053 1026 999 974 949 925 902 880 858 837 816 796 777 758
Delta Temperature corresponding to NTC deviation ( C)
2,5
2,0 Delta Temperature (C)
1,5
1,0
0,5
0,0 -40 -20 0 20 40 60 80 100 Temperature (C)
0.1C tolerance on Resistance Measurement
________________________________________________________________________________________ Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
5
Temperature Look-Up Table for a 5V continuous voltage supply
%) ' %* ' %) ' %* ' %) ' %* ' %) ' %* '
-40 -39 -38 -37 -36 -35 -34 -33 -32 -31 -30 -29 -28 -27 -26 -25 -24 -23 -22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1
176844 168835 161153 153786 146725 139958 133477 127271 121331 115648 110213 105017 100052 95309 90780 86457 82332 78398 74648 71074 67670 64428 61342 58405 55612 52956 50432 48034 45755 43592 41539 39590 37741 35988 34325 32748 31254 29837 28495 27223
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
26018 24980 23982 23024 22103 21219 20371 19557 18777 18028 17311 16623 15965 15334 14730 14152 13598 13069 12562 12078 11615 11172 10748 10343 9956 9586 9233 8895 8571 8262 7966 7684 7413 7154 6906 6668 6440 6222 6012 5811
40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
5618 5432 5254 5082 4916 4757 4603 4454 4311 4172 4038 3908 3783 3661 3543 3429 3319 3212 3108 3008 2911 2817 2727 2640 2557 2477 2401 2329 2261 2197 2137 2081 2031 1985 1945 1910 1707 1654 1604 1559
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110
1555 1515 1473 1431 1391 1352 1314 1277 1241 1206 1173 1140 1108 1076 1046 1017 988 960 934 907 882 857 833 810 787 765 743 722 702 682 663
Delta Temperature corresponding to NTC deviation ( C)
2,5
2,0 Delta Temperature (C)
1,5
1,0
0,5
0,0 -40 -20 0 20 40 60 80 100 Temperature (C)
0.1C tolerance on Resistance Measurement
Humidity Error Budget Conditions at 23C
HTG3400 series modules are specified for maximum accuracy measurements within 10 to 95 %RH. Excursion out of this range (< 10% or > 95% RH, including condensation) does not affect the reliability of HTG3400 series characteristics.
2
________________________________________________________________________________________ Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
6
* CONNECTING AND MECHANICAL CHARACTERISTICS
Connecting Characteristics
$+ +, 1&3
"
.
JST ZHR-4
Side Connector
CH
-
Short Male Connector (1) (3) (1.65 mm - 0.065 in long)
PVBS 12 34
3
Samtec CLT 104 Series
Long Male Connector (2) (3) (4.27 mm - 0.198 in long)
PVBL 1 23 4
3
Direct Soldering (through hole)
Female Connector (1) (3)
CFB 432 1
3
-
Samtec TMM 104-05-D
* For alternate connector type, please contact factory.
(1) (2) (3)
Connector should undergo vibration test before validation. A second fixing point add double-sided adhesive tape (ref: 3M - 5925F). For board-to-board mounting, we suggest wave soldering. Pins are connected by twos. Pin Out Assignment (with any connector)
/) 1 2 3 4 " Ground Vcc - Voltage Supply NTC - Temperature Fout - Humidity
Wiring Characteristics
$+ +, 0
Wiring cable length: TBD Wiring cable type: AWG 30
1 With wires
3
Wiring cable length: TBD Wiring cable type: AWG 30
Pin Out Assignment (with wires)
Black Red Green Yellow " Ground Vcc - Voltage Supply NTC - Temperature Fout - Humidity
________________________________________________________________________________________ Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
7
Mechanical Characteristics
HTG Series Package Outline 12 31 4 %,
, 50
'
Package Outline With CH connector 6 A B C D E F %' 27 0.25 11.9 0.2 5.5 0.2 24.65 0.25 O2.5 0.2 6.7 0.3 Color : Black Weight : 1.5g
Housing 1 can be fixed with a M2 screw.
2
3 4 %,
- "7
'
Package Outline with CH connector 6 A B C F %' 27 0.25 11.9 0.2 5.5 0.2 6.7 0.3
Color : Black Weight : 1.8g
Package Outline with PVBS connector (1.65 mm - 0.065 in long) 6 A B C F %' 27 0.25 11.9 0.2 5.5 0.2 8.2 0.5
Color : Black Weight : 1.8g
________________________________________________________________________________________ Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
8
Package Outline with PVBL connector (4.27 mm - 0.198 in long) 6 A B C F %' 27 0.25 11.9 0.2 5.5 0.2 10.8 0.5
Color : Black Weight : 1.8g
Package Outline with CFB connector 6 A B C F %' 27 0.25 11.9 0.2 5.5 0.2 5.96 0.5
Color : Black Weight : 1.8g
Double coated adhesive tape could be used on potted area for housings 1 and 3 (ref:.3M - 5925F) to fix parts.
* RESISTANCE TO PHYSICAL AND CHEMICAL STRESSES
HTG3400 series contain circuits to protect its inputs and outputs against Electrostatic discharges (ESD) up to 15kV, air discharge. HTG3400 series are protected against EMC interferences. HTG3400 series are protected against reverse polarity. Additional tests under harsh chemical conditions demonstrate good operation in presence of salt atmosphere, SO2 (0.5%), H2S (0.5%), O3, NOx, NO, CO, CO2, Softener, Soap, Toluene, acids (H2SO4, HNO3, HCl), HMDS, Insecticide, Cigarette smoke, a non-exhaustive list. HTG3400 series are not light sensitive.
________________________________________________________________________________________ Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
9
* ORDERING INFORMATION
HTG3XYZ yyy
3 $ 4 Frequency 5 Voltage 1
(with screw/fatsener capability)
4 3
(with PTFE membrane)
3 3.3V
5 5V
CH
PVBS
PVBL
CFB
+ 0 A
8 Issue Originale CTN LUT updated
6 D. LE GALL D. LE GALL
October 07 November 07
* DISCLAIMER
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 not 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. Humirel 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 Humirel 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 a registered trade mark of Humirel.
________________________________________________________________________________________ Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
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