Power-Down Instruction - Flex ROA128 6016 User Manual

Test Board User Guide BMR47401
Model
BMR 474 2001
4.2

Power-down instruction

28701-ROA1286016 Rev A
Iout max
0.6V≤ Vo ≤1.8V
Iomax=80A
1.8V < Vo ≤3.3V
Iomax=60A

Make sure Enable switch is set to OFF position

By default, the module is configured to set Vout with pin-strap resistors.
Make sure jumper in the position 10 is populated with desired Vout.

Connect power supply to connectors on position 1.

Connect load to connectors on position 2.

Connect the PMBus adapter/cable to the board.

Apply Vin = 6-15V through connectors on position 1.

Set Enable switch to ON position. The power good LED will give green
light.
Note: PG LED is powered by USB-PMBus adapter, so only connect demo
board with computer through adapter, LED will be lit when module Vout is
ready.

Then increase the load, and through K2 (position 7) to measure the Vout
and ripple.

Set Enable switch to OFF position

Turn off Vin
2021/4/25
Switching frequency
0.6V≤ Vo ≤1.8V
f
=500kHz
sw
1.8V < Vo ≤3.3V
f
=800kHz
sw
Vin/Vout range
Vin =6-15 V
0.6V≤ Vo ≤2.5V
Vin=7.5-15V
2.5V < Vo ≤3.3V
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