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Flex BMR 481 P1E+, User Manual

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Reference Board BMR 481 P1E+ 

 

 

 

287 01-ROA 170 014  Rev A    2018-10-16 

 

2 (12) 

 

 

 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Copyright  

© Flex 2018. All rights reserved  

Disclaimer  

No part of this document may be reproduced in any form without the written 
permission of the copyright owner. 

The contents of this document are subject to revision without notice due to 
continued progress in methodology, design and manufacturing. Flex shall have no 
liability for any error or damage of any kind resulting from the use of this 
document.  

Trademarks  

All trademarks are properties of their owners.  

Flex

 is the trademark of Flextronics International.  

PMBus

™ is a trademark of SMIF, Inc.  

Windows®

 and 

Microsoft®

 are the trademarks of Microsoft Corporation in the 

United States or other countries. 

Summary of Contents for BMR 481 P1E+

Page 1: ...Reference Board BMR 481 P1E ROA 170 014 USER GUIDE ...

Page 2: ...t are subject to revision without notice due to continued progress in methodology design and manufacturing Flex shall have no liability for any error or damage of any kind resulting from the use of this document Trademarks All trademarks are properties of their owners Flex is the trademark of Flextronics International PMBus is a trademark of SMIF Inc Windows and Microsoft are the trademarks of Mic...

Page 3: ... Power down Instructions 7 3 1 Power up instruction 7 3 2 Power down instruction 7 4 Board Supplies 8 5 Address Resistor 9 5 1 Adjustment of address resistor 9 6 Phase Active LEDs 9 7 Test Points and Sense Locations 10 7 1 VIN VOUT test points 10 7 2 Sense location jumpers 10 7 3 PWM test points 10 8 Additional Output Capacitance 11 9 Current Sense termination 11 10 Electronic loads 12 ...

Page 4: ...oducts please contact your local sales representative Contact details are available from our website https flex com expertise power scalable power modules 1 2 Prerequisites In order to operate the ROA 170 014 board the following is needed Power supply 40 60 V Power supply 5 V BMR 481 MAIN BMR 481 0021 002 P1E and SATELLITE BMR 481 0022 P1E modules The modules are soldered onto the board at deliver...

Page 5: ...ev A 2018 10 16 5 12 2 Reference Board ROA 170 014 In Figure 1a and 1b the top and bottom side of the ROA 170 014 is shown Figure 1a ROA 170 014 top side Descriptions are found on next page 2 1 3 4 5 6 9 2 10 1 9 7b 7c 12 11 13 14 7a 16 15 8 18 19 17 ...

Page 6: ...r for driver controller and auxiliary supplies 9 Space for additional output capacitors 10 Positions for populating Flex electronic load PuLS 11 VCTRL power on LED 12 Vin power on LED 13 Fault detected and SALERT LED 14 Space for additional input capacitors 15 Supply option jumpers 16 Sense location jumpers 17 MAIN and SATELLITE modules 18 PWM probing points 19 Phase Active LEDs See Sec 6 Position...

Page 7: ... voltage LED should give green light This will now supply primary and secondary control of MAIN and SATELLITES as well as controller and LEDs Apply Vin 40 60V through connectors position 1 The input voltage LED should give green light Set Enable switch in ON position The power good LED should now give green light as well as the Phase Active LED for the MAIN When measuring Vout set sense location j...

Page 8: ...DD1 VCTRL J2 position 8 VDD Primary side control supply for MAIN and SATELLITEs VCC1 VCTRL Supply for controller in MAIN VCC1 VLED Supply of LEDs on test board VCTRL1 VL Optional supply for electronic loads VLED VI2C Supply 3 3V provided by PMBus to USB adaptor VLED J1 position 6 Table 1 Summary of supplies 1 This is the pre configured jumper setting for ROA 170 014 3 P4A and ROA 170 014 4 P4A Not...

Page 9: ...gure 2 Address resistor position R6 is shown in the picture Change resistors R6 SA to achieve the desired PMBus address for the MAIN module 6 Phase Active LEDs These LEDs position 19 indicate the number of phases currently being used Each LED will light up when the corresponding MAIN or SATELLITE is switching i e when there is an active PWM signal MAIN Phase 1 SATELLITEs Phase 2 6 R6 ...

Page 10: ...ule PHASE 1 at the Test board Alternative test points are TP15 TP16 K14 position 7b connected to VOUT GND pins of center positioned electronic load position 10 TP24 TP23 K18 connected to VOUT GND pins of PHASE 2 at the Test board 7 2 Sense location jumpers Sense location jumpers in J13 J14 position 16 must be correctly placed according to VOUT test points used Use positions MAIN when measuring VOU...

Page 11: ...pace for additional output capacitors 9 Current Sense termination R78 R87 position 20 are used to terminate the current sense wire when SATELLITEs are not mounted Which resistors to mount or un mount is described in Table 2 SATELLITE not mounted Resistors to mount PHASE2 R78 R79 PHASE3 R80 R81 PHASE4 R82 R83 PHASE5 R84 R85 PHASE6 R86 R87 Table 2 Mounting table of current sense termination resistor...

Page 12: ...o 5 pcs of PuLS loads can be connected to the output of the board see position 10 in Fig 1a The PuLS loads ROA 128 5552 1 can be programmed for different transient loads and waveforms see the technical specification for further information They do not need to be soldered the board is prepared for the use of sockets so the loads easily can be mounted ...

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