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dc1624af
DEMO MANUAL DC1624A
qUick stArt proceDUre
Place a voltmeter between IN1 and IN2 turrets to measure
the difference between two input voltages. Activate both
rails and keep a load around 1A to 3A. Adjust with the input
voltage levels and verify that when the difference between
input voltages exceeds 40mV only one rail is active.
THE PRIORITIZER FUNCTIONALITY TEST
The DC1624A is assembled with components to imple-
ment a two power rails prioritizer with channel 1 having
the higher priority.
Install R17 with 470 and R18 with 41.2k.
Place JP5 PPR_SEL (power priority select) jumper in posi-
tion ON2 and JP4 ON2_SEL (ON2 select) in position OFF.
Apply independent supply voltages (12V) to both inputs.
Channel 1 will be connected to load. Reduce channel 1
input voltage until it reaches an undervoltage condition
and D5 (
PWRGD2
) lights. At the same time channel 2
power supply will deliver power to the load.
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