SBOU319A November   2024  – June 2025 HDC3120

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 HDC3120EVM Specifications
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Setup and Interface
      1. 2.1.1 Setup Overview
      2. 2.1.2 Connecting Board Power and Ground
      3. 2.1.3 Connecting to the HDC3120 and Comparator Outputs
      4. 2.1.4 Temperature
      5. 2.1.5 Relative Humidity (RH)
      6. 2.1.6 HDC3120EVM Buttons
        1. 2.1.6.1 Reset Button (SW1)
        2. 2.1.6.2 Heater Enable Switch (S2)
    2. 2.2 Comparator Function
  9. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layouts
      1. 3.2.1 Layout Overview
      2. 3.2.2 Layout Guidelines
    3. 3.3 Bill of Materials (BOM)
  10. 4Additional Information
    1. 4.1 Trademarks
  11. 5Related Documentation
  12. 6Revision History

3.3 Bill of Materials (BOM)

Table 3-1 HDC3120EVM Bill of Materials
Designator Quantity Value Description Package Reference Part Number Manufacturer
!PCB? 2 Printed Circuit Board SENS130 Any
C1, C9, C10 3 100nF Chip Multilayer Ceramic Capacitors for General Purpose, 0402, 0.10uF, X7R, 15%, 10%, 50V 0402 GRM155R71H104KE14D Murata
C4, C5 2 10nF 10000pF ±10% 25V Ceramic Capacitor X8R 0402 (1005 Metric) 0402 C1005X8R1E103K050BA TDK Corporation
C6 1 10uF CAP, CERM, 10 µF, 25 V,+/- 10%, X5R, 0603 0603 GRM188R61E106KA73D MuRata
COMP_RH, COMP_TEMP, RH_ALERT, T_ALERT 4 Test Point, Miniature, White, TH White Miniature Testpoint 5002 Keystone Electronics
D1 1 Red LED, Red, SMD LED_0603 150060RS75000 Wurth Elektronik
D2 1 Green LED, Green, SMD LED_0603 150060GS75000 Wurth Elektronik
D3 1 6.8V Diode, Zener, 6.8 V, 500 mW, SOD-123 SOD-123 MMSZ4692T1G ON Semiconductor
D5, D6 2 Yellow LED, Yellow, SMD LED_0603 150060YS75000 Wurth Elektronik
GND1, GND2, GND3, GND4 4 Test Point, Multipurpose, Black, TH Black Multipurpose Testpoint 5011 Keystone Electronics
H1, H2, H3, H4 4 Standoff, Hex, 0.5"L #4-40 Nylon Standoff 1902C Keystone
H5, H6, H7, H8 4 Machine Screw, Round, #4-40 x 1/4, Nylon, Philips panhead Screw NY PMS 440 0025 PH B&F Fastener Supply
HEAT_EN, nRESET_EN, RH, RH_POT, T_POT, TEMP 6 Test Point, Compact, White, TH White Compact Testpoint 5007 Keystone Electronics
HEATER 1 Switch, Slide, SPST, Top Slide, SMT Switch, Single Top Slide, 2.5x8x2.5mm CHS-01TB Copal Electronics
J1, J2 2 Terminal Block, 3.5mm Pitch, 3x1, TH 10.5x8.2x6.5mm ED555/3DS On-Shore Technology
J5 1 Terminal Block, 3.5mm Pitch, 2x1, TH 7.0x8.2x6.5mm ED555/2DS On-Shore Technology
R1, R2 2 100 Res Thin Film 0402 100 Ohm 0.1% 0.063W(1/16W) ±25ppm/C Pad SMD T/R 0402 RT0402BRD07100RL Yageo
R3, R4, R11, R12 4 1.0k RES, 1.0 k, 5%, 0.1 W, AEC-Q200 Grade 0, 0402 0402 ERJ-2GEJ102X Panasonic
R6, R7 2 10k 10 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 1.0 Turn Top Adjustment PTH3 CT-6EP103 Nidec Copal
R8, R9 2 68.1 TE Connectivity / AMP
R13 1 20.0k RES, 20.0 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 ERJ-3EKF2002V Panasonic
R14, R15 2 51k 51 kOhms ±0.1% 0.063W, 1/16W Chip Resistor 0402 (1005 Metric) Automotive AEC-Q200 Thin Film 0402 ERA-2AEB513X Panasonic Electronic Components
RESET 1 Switch, SPST-NO, Off-Mom, 0.05A, 12VDC, SMD 3.9x2.9mm PTS820 J20M SMTR LFS C&K Components
U1 1 Integrated Humidity and Temperature Sensor With Analog Outputs WSON8 HDC3120DEFR Texas Instruments
U2, U3 2 Single low-voltage comparator with push-pull output 5-SC70 -40 to 125 SC70-5 TLV9030DCKR Texas Instruments
VDUT 1 Test Point, Compact, Red, TH Red Compact Testpoint 5005 Keystone Electronics
C2, C3 DNP 6800pF CAP, CERM, 6800 pF, 100 V,+/- 5%, C0G/NP0, AEC-Q200 Grade 0, 0603 0603 CGA3EANP02A682J080AC TDK
RH_SMA, TEMP_SMA DNP JACK, SMA, 50 Ohm, Gold, R/A, TH SMA Jack, 50 Ohm, R/A, TH CONSMA002-G Linx Technologies