Standard Products Reference Design RHD5962 Thermometer Demo Card The most important thing we build is trust 1.1 Description The RHD5962 Buffered Thermometer demonstration card integrates a UT04VS33P Quad-Channel Voltage Supervisor with the RHD5962 temperature monitor to provide a versatile platform for sensor evaluation. The design operates on a single 3.3V CR2032 watch battery. No other power sources are required. Test points provide monitoring and supply capabilities for the 3.3V, Ground, and output of the RHD5962 (VTH). ZϮ Zϵ Zϯ Zϴ Zϰ Zϳ Zϲ Zϱ sŽůƚĂŐĞ ^ƵƉĞƌǀŝƐŽƌZĞƐĞƚ YƵĂĚͲŚĂŶŶĞů sŽůƚĂŐĞ ^ƵƉĞƌǀŝƐŽƌ dĞŵƉĞƌĂƚƵƌĞ ^ĞŶƐŽƌKƵƚƉƚ dŚĞƌŵĂů^ĞŶƐŽƌ ĂŶĚWĂĚ ϯ͘ϯs^ƵƉƉůLJ 'ƌŽƵŶĚdĞƐƚϯ͘ϯs ^ƵƉƉůLJ KŶͬKĨĨZŽĐŬĞƌ Figure 1. Picture of board with critical components and features pointed out. The rocker switch in the OFF position. Table 1. Evaluation Board Parameters Parameter Min Typical System Input Voltage, VIN 3.0 3.3 System Temperature Range 0 System Temperature Sensitivity 8 Temperature Sensor Output, VTHERM Condition @ 25°C Voltage Supervisor Input Voltage Threshold Level, VRFTH Voltage Supervisor Output Open Drain Current 1.2 Max Unit 3.6 V 125 °C 8.9 11 mV/°C 0.95 1 1.05 V 585 600 615 mV 1 mA VDD = 3.6V Quick Setup Procedure Initial setup of the RHD5962 demonstration card is simple. Insert the CR2032 watch battery with the positive side facing up and flip the rocker switch to the reverse of Figure 1. 1.2.1 Alternate Setup Method 1. With battery removed, connect the input power supply across the 3.3V_TP and GND_TP. 2. Turn on the power at the input. Increase input to 3.3V. 3. Press and release the reset button to verify functional conditions. 954024-000 Version 1.1.0 -4 - Cobham Semiconductor Solutions Cobham.com/HiRel June 2015 Tuning & Adjustments 1.3 4. Check voltage output of temperature sensor at VTH_TP. At ambient temperature, expect to see between 950mV to 960mV. 5. Visually verify the green ambient temperature LED (D6) is illuminated. Tuning & Adjustments Tuning the RHD5962 demonstration circuit is possible through a number of resistors on the top layer of the board. R6, R7, R8, & R9 pair with 1KΩ resistors to allow for easy calculations for changing the threshold voltages of the Voltage Supervisor. Equation 1. VTHERM × 1KΩ R = ----------------------------------------- – 1K 600mV Figure 2 shows the full range of output from the RHD5962. Taking into account the temperature sensor tolerance (+/-0.5°C) and VSU reference voltage tolerance (+/-.5°C) and then the resistor tolerance (+/-3°C), the final accuracy of the system is (+/-5°C). Figure 2. RHD5962 voltage (VTHERM) over temperature graph 954024-000 Version 1.1.0 -5 - Cobham Semiconductor Solutions Cobham.com/HiRel June 2015 Tuning & Adjustments . Figure 3. Functional Block Diagram Table 2. Board Specification Board Dimensions: 3"x 3" Board Maximum Weight: NA Number of Layers: 4 Dielectric Material: FR-4 Dielectric Thickness: 8 mil Outer Layer Copper Weight 1oz Inner Layer Copper Weight 0.5oz Differential Line Spacing: 6 mil Default Trace Width: 6 mil Critical Components RHD5962 UT04VS33P Voltage Rails Voltage Current (Amp) 3.3 0.225 Name Type --Layer1 Top Sig/Pwr --Layer2 GND1 GND --Input Layer Definitions: 954024-000 Version 1.1.0 -6 - Cobham Semiconductor Solutions Cobham.com/HiRel June 2015 Tuning & Adjustments C2 C3 3.3V C4 C5 68pF 68pF 68pF 68pF R21 26 24 665 ohm VDD CDLY3 INV CDLY1 17 22 15 CDLY2 28 RESETB EN2 VOUT3 VIN2 VOUT1 16 R12 R22 R25 R26 3.3K 3.3K 330 330 Vout4 18 19 21 25 27 R23 3.3V R27 330 MRB 330 R28 330 R29 330 R30 330 Blue_LED LP Green_LED LP Green_LED LP 23 5 20 VIN4 CRESET EN4 N/C 13 UT04VS33P VSS 1.69K ohm 1.15K ohm R8 R3 R4 VIN4 RESET OVSH VIN1 VIN3 1K ohm VIN2 1K ohm 250 ohm R6 R5 1K ohm VIN4 750 ohm 12 RHD5962 Thermal Sensor Copper Pour 11 VIN3 TOL VIN2 2 VOUT2 9 10 VOUT4 EN3 R24 330 D3 Reset_b Reset VIN1 14 6 TURRET TP2 GND Vth 4 VIN3 VTH TP EN1 TH0 Vin R7 GND TP 3 CDLY4 665 ohm R10 3 Green_LED LP D1 U4 2 VIN1 TH1 1 Rocker Switch COIN Battery Holder TURRET TP3 1 U1 3.3V 2 Vout Vin2 8 Vin1 1K ohm 3 R9 3.3V 3.3V Red_LED LP Green_LED LP D2 D6 D5 30 Degrees C 0 Degrees C 55 Degrees C C1 Vout4 D7 Red_LED LP D4 85 Degrees C 68pF R2 1 GND TURRET TP1 3.3V SW1 7 U3 665 ohm R20 3.3V 3.3V TP 3.3V 3.3V U2 U5 1 2 Vin1 Vout1 Vin2 Vout2 3 4 2 VCC OUT IN GND 3 1 4 CMOS SW DEBOUNCER Push_Button C6 C7 0.1uF 0.01uF Bypass capacitors Place on VDD pin of the UT04VS33P Figure 4. RHD5962 Reference Design Schematic NOTE 954024-000 Version 1.1.0 Red text denotes layout instructions, green text denotes silkscreen markings, and blue text denotes population options. -7 - Cobham Semiconductor Solutions Cobham.com/HiRel June 2015 Tuning & Adjustments Table 3. Reference Design BOM 954024-000 Version 1.1.0 Reference Designators FN Qty. 0 1 PWB 4350-001 1 5 C1,C2,C3,C4,C5 1 ALT 2 1 2 ALT 3 1 3 ALT 4 3 4 ALT 5 2 5 ALT 6 1 6 ALT 7 1 7 ALT 8 4 8 ALT 9 1 9 ALT 10 1 10 ALT 11 1 11 ALT 12 1 12 ALT 13 3 13 ALT 14 2 14 ALT 15 8 15 ALT 16 1 16 ALT 17 3 C6 C7 D1,D2,D6 D3,D4 D5 D7 R2,R3,R4,R5 R6 Part Number Description PKG PWB 3"x3" C1608C0G1H680F080AA CAP,CER,68pF,50V,1%,0603 smt0603 445-7029-1-ND CAP,CER,68pF,50V,1%,0603 Digikey C0805C103F5GACTU CAP,CER,0.01uF,50V,1%,0805 smt0805 Kemet 399-11161-1-ND CAP,CER,0.01uF,50V,1%,0805 Digikey TAJR104K020RNJ CAP,TANT,0.1uF,20V,10%,08 smt0805 05 AVX Corporation 478-3286-1-ND CAP,TANT,0.1uF,20V,10%,08 05 Digikey LNJ612W8WRA Green_LED Low Power_0 P11481CT-ND Green_LED Low Power_0 LTST-C193KRKT-5A Red_LED Low Power_0 160-1830-1-ND Red_LED Low Power_0 LTST-C193KSKT-5A Yellow_LED Low Power 160-1831-1-ND Yellow_LED Low Power QTLP601CEBTR Blue_LED Low Power_0 1080-1406-1-ND Blue_LED Low Power_0 ERJ-6ENF1001V RES,1K,1%,0.125W,0805 P1.00KCCT-ND RES,1K,1%,0.125W,0805 RNCF0603TKY250R RES,250,0.01%,1/16W,0603 smt0603 R8 R9 R10,R20,R21 R12,R22 Panasonic smt0603 Lite-On Inc Digikey smt0603 Lite-On Inc Digikey smt0603 Everlight Electronics Digikey smt0805 Panasonic Digikey smt0603 Stackpole Electronics Inc. Digikey RES,750,1%,0.1W,0603 P750HCT-ND RES,750,1%,0.1W,0603 Digikey smt0603 Panasonic ERA-6AEB1151V RES,1.15K,0.1%,0.125W,0805 smt0805 Panasonic P1.15KDACT-ND RES,1.15K,0.1%,0.125W,0805 Digikey ERA-6AEB1691V RES,1.69K,0.1%,0.125W,0805 smt0805 Panasonic P1.69KDACT-ND RES,1.69K,0.1%,0.125W,0805 Digikey ERJ-2RKF6650X RES,665,1%,0.1W,0402 P665LCT-ND RES,665,1%,0.1W,0402 ERJ-3EKF3301V RES,3.3k,1%,0.1W,0603 P3.30KHCT-ND RES,3.3k,1%,0.1W,0603 P330LCT-ND RES,330,1%,.1W,0402 Panasonic Digikey SMT0603 Panasonic Digikey smt0402 Panasonic Digikey sw_400bwm E-Switch Rocker Switch 2101-3-00-80-00-00-07-0 T POINT S_0 -8 - smt0402 RES,330,1%,.1W,0402 400BWMSP1R2BLKSM6QE Rocker Switch EG4336CT-ND TP1,TP2,TP3 TDK Corporation ERJ-3EKF7500V R23,R24,R25,R26, ERJ-2RKF3300X R27,R28,R29,R30 SW1 Prototron Digikey RNCF0603TKY250RCT-ND RES,250,0.01%,1/16W,0603 R7 MFG Digikey DIA53MIL Mill-Max Cobham Semiconductor Solutions Cobham.com/HiRel June 2015 Table 3. (Continued)Reference Design BOM FN Qty. 17 ALT 18 1 19 1 19 ALT 20 1 20 ALT 21 1 22 1 22 ALT 23 23 Reference Designators Part Number Description PKG MFG ED1295-ND T POINT S_0 U1 UT04VS33P UT04VS33P CFP28P25M Aeroflex/Cobham IL U2 MAX6816EUS+TCT-ND MAX6816EUS-T_0 SOT143 MAX6816EUS+TCT-ND MAX6816EUS-T_0 U3 Digikey Maxim Integrated Digikey S8421-45R COIN Battery Holder 952-1737-1-ND COIN Battery Holder s8421r Harwin Inc. U4 RHD5962 RHD5962 smd-05 U5 1.14100.5030000 Push_Button sw_racon8s C&K Components md CKN9363CT-ND Push_Button Digikey 1 CR2032VP Coin Cell Battery 2032 Energizer Battery Co ALT N189-ND Coin Cell Battery 2032 Digikey Digikey Aeroflex/Cobham This product is controlled for export under the U.S. Department of Commerce (DoC). A license may be required prior to the export of this product from the United States. Cobham Semiconductor Solutions 4350 Centennial Blvd Colorado Springs, CO 80907 E: [email protected] T: 800 645 8862 Aeroflex Colorado Springs Inc., DBA Cobham Semiconductor Solutions, reserves the right to make changes to any products and services described herein at any time without notice. Consult Aeroflex or an authorized sales representative to verify that the information in this data sheet is current before using this product. Aeroflex does not assume any responsibility or liability arising out of the application or use of any product or service described herein, except as expressly agreed to in writing by Aeroflex; nor does the purchase, lease, or use of a product or service from Aeroflex convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual rights of Aeroflex or of third parties. 954024-000 Version 1.1.0 -9 - Cobham Semiconductor Solutions Cobham.com/HiRel