Flex BMR463 User manual

Evaluation Board User Guide
ROA 128 5077
User Guide for paralleling BMR463, BMR463

Evaluation Board User Guide – ROA 128 5077
2022-05-17
2 (9)
Contents
1Introduction.......................................................................................3
1.1 How to contact Flex Power Modules ................................................. 3
2User Guide.........................................................................................3
2.1 Power up/down instructions................................................................. 3
2.2 Power supply connections ................................................................... 3
3Address and v out range resistors ...................................................6
3.1 Change of address resistors ................................................................. 7
3.2 BMR463/464 adjustment of address resistors .................................... 7
4Dimensions ........................................................................................8
5Revision .............................................................................................9

Evaluation Board User Guide – ROA 128 5077
2022-05-17
3 (9)
1Introduction
This User Guide provides a brief introduction and instruction on how to use
the Reference Board ROA 128 5077 for paralleling of BMR463 and BMR464.
How to contact Flex Power Modules
For general questions or interest in our products, please contact your local
sales representative. Contact details are found on our our website:
Flexpowermodules.com
2User Guide
Power up/down instructions
This section of the document describes how to connect correctly power
supply for different cases to avoid mistake during measurements.
Power supply connections
Add 5-14 V DC power to the “Vin” and “Gnd” connectors (see Fig 1).
Fig 1: Connect 5-14 V either to the Vin or Gnd DC power connectors located in both ends of the board

Evaluation Board User Guide – ROA 128 5077
2022-05-17
4 (9)
Figure 2 shows the RC switch in “On” position.
Figure 2: RC switch in ‘On’ position
Figures 3 & 4 show the connection of two types of USB-to-PMBus adapters.
Figure 3: Connection o FPM KEP91017 PMBus to USB adapter
SW 1

Evaluation Board User Guide – ROA 128 5077
2022-05-17
5 (9)
Figure 4: Connection of the Intersil ZLUSBREF02 PMBus to USB adapter
Power-up instructions:
•Mount the BMRs in desired positions
•Turn the RC switch in ‘Off’ position
•Connect and turn on 5-14 V supply
•Connect the PMBus adapter/cable to the board
•Start the necessary software program in order to perform re-
configuration required to operate the modules in parallel
•After re-configuration of modules, cycle the 5-14 V supply
•Turn the RC switch in ‘On’ position
If the modules are now starting up properly, the Power Good LED of each
module should give green light.
Note: If any of the PMBus interfaces are connected to the board the LEDs
will light continuously in positions where no modules are mounted.
Power-down instruction:
•Turn RC switch in ‘Off’ position or turn Off the 5-14V Supply
•Now the BMR modules can be removed/replaced

Evaluation Board User Guide – ROA 128 5077
2022-05-17
6 (9)
3Address and v out range resistors
This section describes the locations of the Address and Vout range pin
strap resistors. To know what resistor value to mount, please look in the
actual Technical Specification of the BMR product found on our website.
Fig 5 shows the positions of the address and Vout range resistors, they are
found at the bottom side of the board.
Figure 5: Positions of the address and Vout range resistors

Evaluation Board User Guide – ROA 128 5077
2022-05-17
7 (9)
Change of address resistors
BMR463/464 adjustment of address resistors
To change the address in a position, change the resistors as shown in figure
6. See table below for each position of resistors.
Figure 6: Address resistors in position for BMR463/464
PoL position Address
resistors
Vout range
resistors
1/ 0x58
R10, R11
R12
2/ 0x59
R13, R15
R14
3/ 0x5A
R16, R18
R17
4/ 0x5C
R19, R21
R20
5/ 0x5C
R22, R24
R23
6/ 0x5D
R25, R25
R26
7/ 0x5E
R28, R30
R29

Evaluation Board User Guide – ROA 128 5077
2022-05-17
8 (9)
4Dimensions
The outer dimensions (in mm) of the test board are shown in the picture
below.
The whole test board has the outer dimensions 150 x 160 x 56.5 mm (L x W x
H). Weight of the complete test board is 370 g.

Evaluation Board User Guide – ROA 128 5077
2022-05-17
9 (9)
5Revision
Rev
Date
Revisor
Changes
A
2012-02-08
New document
B
2022-05-11
Kartwaer
New Flex format
Copyright
© Flex 2022. 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.