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EVAL-ADuM5028EBZ

 User Guide 

UG-1263 

One

 Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com 

Evaluating the 

ADuM5028

, Low Emission, Isolated, DC-to-DC Converter 

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT  
WARNING AND LEGAL TERMS AND CONDITIONS.

 

Rev. A | Page 1 of 8 

FEATURES 

Signal and power isolated 

ADuM5028

 with 

iso

Power 

integrated isolated dc-to-dc converter 

2-layer PCB with low radiated emissions; passes EN55022 

Class B (certification available) 

On-board LDO for 6 V to 9 V supply, providing 5 V to the 

ADuM5028

 V

DDP

 pin 

5 V input and 5 V or 3.3 V output operation 
Screw terminal connectors for the following 

6 V to 9 V LDO power supply 
5 V direct power supply 
Off board PDIS control 
Isolated output supply 

EVALUATION KIT CONTENTS 

EVAL-ADuM5028EBZ evaluation board 

ADuM5028-5BRIZ

 

DOCUMENTS NEEDED 

ADuM5028

 data sheet 

EVALUATION BOARD PHOTOGRAPH

 

16695-

001

Figure 1.  

GENERAL DESCRIPTION 

The EVAL-ADUM5028EBZ allows the user to evaluate the 

ADuM5028

 isolated power solution. The 

ADuM5028

 eliminates 

the need to design and build an isolated dc-to-dc converter in 
60 mA applications. The 

i

Coupler® chip scale transformer 

technology is used for the inductive component of the dc-to-dc 
converter. The result is a small form factor, isolated solution.  
Based on the Analog Devices, Inc., 

i

Coupler technology, the 

ADuM5028

 dc-to-dc converter provides regulated, isolated 

power that is well below CISPR22 Class B limits when at full 
load on a 2-layer printed circuit board (PCB) with ferrites. 
Available supply voltages and the associated output current 
levels are shown in Table 1.  
Full specifications of the 

ADuM5028

 can be found in the 

ADuM5028

 data sheets available from Analog Devices, and 

must be consulted in conjunction with this user guide when 
using the evaluation board. 

Table 1. 

ADuM5028

 Output Current Levels  

Model 

Isolation 
Voltage 
(kV rms) 

V

IN

  

(V) 

V

OUT

  

(V) 

85°C  
I

OUT 

(mA) 

105°C  
I

OUT

  

(mA) 

125°C  
I

OUT

  

(mA) 

ADuM5028-5BRIZ 

5  

60 

40 

20 

ADuM5028-5BRIZ 

5  

3.3  

60 

40 

20 

Summary of Contents for EVAL-ADuM5028EBZ

Page 1: ...16695 001 Figure 1 GENERAL DESCRIPTION The EVAL ADUM5028EBZ allows the user to evaluate the ADuM5028 isolated power solution The ADuM5028 eliminates the need to design and build an isolated dc to dc converter in 60 mA applications The iCoupler chip scale transformer technology is used for the inductive component of the dc to dc converter The result is a small form factor isolated solution Based on...

Page 2: ...ion 1 Revision History 2 Evaluation Board Hardware 3 Using the Evaluation Board 3 PCB Layout Recomendations 3 EN55022 Radiated Emissions Test Results 4 Evaluation Board Schematic and Artwork 5 Ordering Information 7 Bill of Materials 7 Related Links 7 REVISION HISTORY 7 2018 Rev 0 to Rev A Changed ADuM5028 5BRWZ to ADuM5028 5BRIZ Throughout 5 2018 Revision 0 Initial Version ...

Page 3: ...or and the input power supply pin must not exceed 2 mm To reduce the level of electromagnetic radiation increase the impedance to high frequency currents between the VISO pin and the GNDISO pin and the PCB trace connections Using this method of emissions suppression controls the radiating signal at its source by placing surface mount ferrite beads in series with the VISO pin and GNDISO pin see Fig...

Page 4: ...Hz to 1 GHz are shown in Figure 3 and Figure 4 Figure 3 shows the results of the peak horizontal scan the worst case and Figure 4 shows the results of the peak vertical scan Table 3 shows the tabulated quasi peak QP results These results show that the ADuM5028 emissions at 4 2 dB margin are well below CISPR22 Class B limits when at 5 V output and 50 mA load on a 2 layer PCB with the use of ferrite...

Page 5: ...DP_IN VIN_LDO VOUT_LDO VDDP VDDP_IN VOUT_LDO VIN_LDO VISO 691213710003 10µF 10µF 10µF 1500Ω RED 1500Ω 1500Ω 13 0kΩ 13 0kΩ 22 1kΩ 18 2kΩ 0Ω DNI BLK 691 213 710 002 DNI 10µF 100kΩ 0 1µF ADUM5028 5BRIZ YEL BLK 0 1µF 0 DNI 0 1 8k AT 100MHz 10µF BLK 1 8k AT 100MHz RED 0Ω DNI 0Ω DNI 0Ω DNI 0Ω DNI 0Ω DNI DNI 0Ω 691 213 710 002 DNI AGND1 AGND2 AGND2 AGND2 AGND1 AGND2 AGND2 AGND2 AGND2 AGND2 AGND2 AGND2 AG...

Page 6: ...63 EVAL ADuM5028EBZ User Guide Rev A Page 6 of 8 16695 006 Figure 6 EVAL ADUM5028EBZ Evaluation Board Top Layer and Silkscreen 16695 007 Figure 7 EVAL ADuM5028EBZ Evaluation Board Bottom Layer and Silkscreen ...

Page 7: ...ronik 691213710003 P3 P6 Connectors PCB terminal blocks horizontal cable entry 5 mm pitch Wurth Elektronik 691 213 710 002 R10 Resistor 22 1 kΩ 0603 Panasonic ERJ 3EKF2212V R8 R11 Resistors 13 0 kΩ 0603 Panasonic ERJ 3EKF1302V R13 Resistor 100 kΩ 0603 Panasonic ERJ 3EKF1003V R3 Resistor 0 kΩ 0603 Vishay CRCW06030000Z0EA R9 Resistor 18 2 kΩ 0603 Panasonic ERJ 3EKF1822V TP1 to TP6 Connector PCB test...

Page 8: ...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 RESTRICTIONS Customer may not disassemble decompile or reverse engineer chips on the Evaluation Board Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluat...

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