Analog Devices UG-197 User Manual Download Page 11 | Manualshive

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Evaluation Board User Guide

UG-197

Rev. 0 | Page 11 of 16

EVALUATION BOARD LAYOUT

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Figure 18. Top Layer: Power Fill

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Figure 19. Layer 2: Ground Plane

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Figure 20. Layer 3: Power Plane

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Figure 21. Bottom Layer: Ground Fill

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Summary of Contents for UG-197

Page 1: ...igurable to 5 V in to 12 V out regulated and 6 V out unregulated 4 isolated 25 Mbps data channels per ADuM347x circuit Footprints for Coilcraft and Halo transformer options Multiple switching frequenc...

Page 2: ...minals 3 Transformer Selection 4 Switching Frequency Options 4 Other Input and Isolated Output Supply Options 4 Schematic 6 Double Supply 7 Terminals 7 Transformer Selection 8 Switching Frequency Opti...

Page 3: ...local bypass capacitor located close to the ADuM3471 C2 R15 R16 C28 and C29 are provided for an optional and unpopulated snubber which can be used to reduce radiated emissions Power is transferred to...

Page 4: ...resistance and the converter switching frequency The EVAL ADuM347x can be configured with 0 0805s to four different preset switching frequencies Short circuiting R30 sets R1 300 k and R2 150 k in par...

Page 5: ...17 006 Figure 6 5 V In to 5 V Out Efficiency with the Coilcraft Transformer at 500 kHz over Temperature 0 10 20 30 40 50 60 70 80 0 50 100 150 200 250 300 350 400 500 450 EFFICIENCY LOAD CURRENT mA 1M...

Page 6: ...UG 197 Evaluation Board User Guide Rev 0 Page 6 of 16 SCHEMATIC 09417 009 Figure 9 Single Supply Schematic...

Page 7: ...uired for the double supply to function 5V IN supplies VDD1 and VDDA to U2 the double supply ADuM3471 VDD1 is the ADuM3471 transformer driver supply and VDDA is its primary supply voltage see the ADuM...

Page 8: ...upply 2 I O1 VIA Logic Input A 3 I O2 VIB Logic Input B 4 I O3 VIC Logic Input C 5 I O4 VOD Logic Output D 6 GND Side 1 ground reference J5 N A N A SMA connector to J4 I O1 VIA J6 1 15V 12V Side 2 15...

Page 9: ...5 C 09417 013 Figure 13 5 V In to 15 V Out Efficiency with the Coilcraft Transformer at 500 kHz and Various Temperatures 0 10 20 30 40 50 70 90 110 140 130 60 80 100 120 0 10 20 30 40 50 60 70 80 EFFI...

Page 10: ...turns ratio CT1 CT5 transformer see the ADuM347x data sheet for more information on these transformers Other changes begin with removing the 0 resistors from R24 and R22 to R23 and R21 Short circuitin...

Page 11: ...uide UG 197 Rev 0 Page 11 of 16 EVALUATION BOARD LAYOUT 09417 018 Figure 18 Top Layer Power Fill 09417 019 Figure 19 Layer 2 Ground Plane 09417 020 Figure 20 Layer 3 Power Plane 09417 021 Figure 21 Bo...

Page 12: ...4 C19 C20 C26 C27 CAP CER X7R SMD 1210 22 F 20 16 V Murata GRM32ER71C226KE18L 4 C28 to C31 CAP CER SMD 0603 not populated N A 3 L1 to L3 Inductor SMD 1212 47 H 20 1 25 Murata LQH3NPN470MM0 4 R7 R8 R28...

Page 13: ...Evaluation Board User Guide UG 197 Rev 0 Page 13 of 16 NOTES...

Page 14: ...UG 197 Evaluation Board User Guide Rev 0 Page 14 of 16 NOTES...

Page 15: ...Evaluation Board User Guide UG 197 Rev 0 Page 15 of 16 NOTES...

Page 16: ...ny other party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to promptly return the Evaluation Board to ADI ADDITIONAL RESTRICTION...

Page 17: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc EVAL ADUM3471EBZ...

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