ARTESYN EMBEDDED TECHNOLOGIES LGA50D JLPJ User manual

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 1 of 18
LGA50D JLPJ and JLP1J
Evaluation Board User Manual

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 2 of 18
TABLE OF CONTENTS
TABLE OF CONTENTS ...................................................................................................................................................2
GENERAL ..........................................................................................................................................................................3
EQUIPMENT REQUIRED ......................................................................................................................................................4
DEFAULT SETTINGS ...........................................................................................................................................................5
COMPONENT IDENTIFICATION.................................................................................................................................6
OPERATION......................................................................................................................................................................7
POWER UP SEQUENCE ........................................................................................................................................................7
ADDITIONAL INFORMATION.............................................................................................................................................11
TEST FUNCTIONS .............................................................................................................................................................13
APPENDIX A –SILK-SCREEN LAYER OF THE EVALUATION BOARD...........................................................16
DOCUMENT REVISION HISTORY.............................................................................................................................17
CONTACT FOR TECHNICAL SUPPORT AND INFORMATION ..........................................................................18
AMERICAS .......................................................................................................................................................................18
ASIA ............................................................................................................................................................................18
EUROPE ...........................................................................................................................................................................18

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 3 of 18
GENERAL
The LGA50D evaluation board (LGA50D-EVAL-KIT-JLPJ, Revision AU) allows the user to
test and investigate the performance of the LGA50D non-isolated module.
Within the kit there are the following items:
- The evaluation board equipped with 2 LGA50D modules
- The Artesyn PMBus interface dongle
- The PMBus to USB interface cables
Fig. 1 –LGA50D evaluation kit
This equipment allows you monitor and control the modules via your computer, or you can
apply settings to the modules by hardware configuration.

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 4 of 18
Equipment required
To run the evaluation board, the following equipment will be required to supply power to the
board, apply load to the board, and to cool the dc-dc converters if the board is to be
operated for long periods.
Recommended Test Equipment
DC Source
7~15V, 40A or above
Load
40A or above for Vo1 or Vo2, 80A or above for Vo3
Cooling Fan
Please use fan cool if operate at full load for long time
Table 1 –Test equipment required
Power cables with M6 ring terminations are required for the input and output connections to
and from the evaluation board.
Test equipment that will be required will be:
- A personal computer with the LGA50D GUI software installed on it
oThe GUI software is available on the Artesyn website
oPlease refer to the GUI user manual for instructions on how to install and use
this software
- Oscilloscope and associated test probes
- Digital multi-meter and associated test probes

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 5 of 18
Default settings
The evaluation board has been supplied with the following configuration and set-up by
default.
If no changes are made to the hardware and firmware configuration of the unit then, the
user will see that this board is equipped with 2 LGA50D modules with the following voltage
settings:
- 1 module is configured for a single output
oOutput voltage setting is 1.2V via the dip switches on the PCB
- 1 module is configured for 2 independent outputs
oOutput A voltage is set to 1.2V via the dip switches on the PCB
oOutput B voltage is set to 1.2V via the dip switches on the PCB
The PCB has been equipped with the following value of capacitors. These have been
selected to provide optimum performance under as many different test conditions as
possible, but the user may change or optimize the values according to the specific
conditions that are to be replicated:
- Input capacitance (per module)
6x 22uF/16V ceramic cap
- Output capacitance
oIn single O/P configuration
2 x 680uF/6.3V Polymer Tan caps (T530X687M006ATE010 or equivalent) +
10 x 100uF/6.3V X6S 1210 ceramic caps (GRM32EC80J107ME20L or
equivalent) + 4x10uF/16V X6S 0603 ceramic caps (GRM188C81C106MA73
or equivalent)
oIn dual O/P configuration
2x 680uF/6.3V Polymer Tan caps (T530X687M006ATE010 or equivalent) + 8
x 100uF/6.3V X6S 1210 ceramic caps (GRM32EC80J107ME20L or
equivalent) + 4x10uF/16V X6S 0603 ceramic caps (GRM188C81C106MA73
or equivalent)

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 6 of 18
COMPONENT IDENTIFICATION
The key components and connection locations are shown in the picture of the evaluation
board below.
Note that the LGA50D shown at the ‘top’ of this picture is the one that is configured as the
single output unit, and the ‘bottom’ converter is configured as a dual output module.
Fig. 2 –LGA50D setup
Assumption: The user has made the power connections to and from the evaluation card.
These will not be described further.

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 7 of 18
OPERATION
Here are the instructions to power up the PCB and modules.
Power up sequence
To power up and configure the evaluation card, please follow the steps as described below.
1. Initial set position of the enable switch
Please make sure the OUTPUT ENABLE toggle switch (S201) is in the “disable”
orientation as shown below with the toggle of the switch leaning toward the modules
and the output side of the PCB (and away from the input side of the board).
Fig. 3 –Initial enable switch orientation

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 8 of 18
2. Connection and configuration
Connect the input and output cables to the M6 terminations of the PCB.
Then connect the following:
a. Connect the Vin1 and Vin2 connections to the DC power source with a voltage setting in
the range of 7.5Vdc to 14Vdc
b. Connect the Vo1, Vo2 and Vo3 connections to your E-load
c. Add the enable jumpers to the En1, EN2 and EN3 locations on J203 –this will ensure that
the 3 outputs will be enabled. Note these are the jumper components located next to
the enable switch –they are shown below.
Fig. 4 –Enable jumper location and population

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 9 of 18
3. Connection of the I2C dongle to I2C connector
This is the interconnect cable between your PMBus dongle and the evaluation PCB. It is
polarized and will only fit into the connected in 1 orientation
The other end of this cable should be plugged into your dongle. The dongle also has USB
connections (and the cable is provided) to connect your dongle to the USB port of your
computer.
Fig. 5 –I2C cable connection to the evaluation board
4. Voltage setting
Select the suitable voltage for Vo1, Vo2 and Vo3 by the voltage selector DIP switches Vo
setting. The silk screen marking shows the voltage settings that can be achieved by these
switches. Note; The 5V0 DIP switches actually sets the output voltage to 3.3V, because the
maximum output voltage for JLPJ/JLP1J is 3.3V.
Fig. 6 –Nominal output voltage settings by DIP switch setting

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 10 of 18
5. Power up sequence
To enable the DC-DC converters to work now that all connections to and from the
evaluation board have been applied, take the following steps:
a. Apply the input voltage to Vin1 and Vin2
b. Operate the toggle enable switch (S201) so that the toggle is leaning toward the input
connections and away from the output connections.
The LGA50D modules should now be operating and supplying power to your E-load.
Fig. 7 –Toggle switch position to enable the outputs of the modules

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 11 of 18
6. The Power down sequence
To disable the outputs from the evaluation board, please take the following steps:
•Toggle Enable switch to disable Vout
•Turn off main voltage to Vin1 and Vin2
Note that not following power up/down sequence may damage the evaluation board.
Additional information
1. Initial set position of the enable switch
This demo board is designed to have two LGA50D modules which can be tested
independently with 2 independent input supplies.
However, if the user wants to use one input (either Vin1 or Vin2) to power both modules,
then this can be done by linking the 2 solder pads together as identified in the picture
below:
Fig. 8 –Shorted pads required to use a single input to supply both LGA50D modules
The short should be removed for efficiency test, because it effects the test result.

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 12 of 18
2. Enabling each output
The outputs of the individual converters can be enabled or disabled by populating and de-
populating the enable jumpers as required.
Fig. 9 –The enable jumpers –all 3 shown in place to enable all 3 outputs
If the enable signal is bouncing during enable and disable, a 0.1uF 0603 capacitor can be
added at C211, C212 and C213 for monotonic signal. (Refer to Appendix A for the location of
the capacitors)

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 13 of 18
Test functions
The evaluation board is also equipped with test points to provide easily accessible voltage
measurement points.
1. Vin and Vout sense locations
Accurate input and output voltage measurements via pin-headers can be found on
J205 and J1205.
Use J1205 for monitoring the input voltage and output voltage of the ‘top’ LGA50D
(when the input connections are on the left). Note, this converter is configured for a
single 50A maximum output.
The location of the connector and the location of the connections when viewing the
connector from the top side (component side) is shown below.
Fig. 10 –Voltage sense locations for Vin-2 and Vout-3
Use J205 for monitoring the input voltage and output voltage of the ‘bottom’ LGA50D
(when the input connections are on the left). Note that this converter is configured for
2 independent 25A maximum outputs.
The location of the connector and the location of the connections when viewing the
connector from the top side (component side) is shown below.
Fig. 11 –Voltage sense locations for Vin-1 and Vout-2 and Vout-1

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 14 of 18
2. Ripple and regulation measurement locations
There are 3 test points provided to give accurate measurements of the output noise
and ripple from the LGA50D.
The mating connector to the SMA connector found on the Evaluation board can be
defined as “A Straight Cable Mount SMA Connector, Plug, Crimp Termination type
RG174U”.
•J1403 –Point of Measurement for Vout-3 ripple.
•J1401 –Point of Measurement for Vout-3 regulation.
Fig. 12–Ripple and regulation measurement point for Vout-3
•J303 - Point of Measurement for Vout-2 ripple
•J301 - Point of Measurement for Vout-2 regulation
Fig. 13–Ripple and regulation measurement point for Vout-2

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 15 of 18
•J403 Point of Measurement for Vout-1 ripple
•J401 Point of Measurement for Vout-1 regulation
Fig. 14–Ripple and regulation measurement point for Vout-1
3. Errata
Fig. 15 J1206 silk screen
Note; The silk screen on the demo-PCB is missing on J1206.The silk screen is shown on
the right in the figure above. The J1206 is for 4 phase setting.
4. For any other measurements and configurations
Please contact your Artesyn representative or technical support for any further
configurations or evaluation parameters that you wish to investigate.

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 16 of 18
Appendix A –Silk-screen layer of the evaluation board

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 17 of 18
DOCUMENT REVISION HISTORY
REV
DATE
DESCRIPTION
REMARKS
01
10Jan2019
First release

LGA50D Evaluation Board User Manual
Artesyn Embedded Technologies LGA50D Evaluation Board
December 2018
Page 18 of 18
Contact for Technical Support and Information
Americas
Phone:
[phone] or
[phone]
Email:
[email protected]
Availability:
8am to 8pm (EST)
Asia
Phone:
400 8899 130 (in China) and
[phone] (outside China)
Email:
[email protected]
Availability:
8:30am to 5:30pm (HKT)
Europe
Phone:
(0) 8000 321 546 (in the UK) and
[phone] (outside UK)
Email:
[email protected]
Availability:
8am to 5pm (GMT)
Visit us: http://www.artesyn.com/
http://www.artesyn.com/power/
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