DRM-24V80W1PN Datasheet, PDF (15/20 Pages) Delta Electronics, Inc. – Built-in active PFC and up to 90% efficiency

TECHNICAL DATASHEET
CliQ M DIN Rail Power Supply
24V 81.6W 1 Phase / DRM-24V80W1PN
Power Boost
Power Boost is the reserve power available
constantly that allows reliable startup to support
sudden and short spike of loads with high inrush
current typically during turn on to remove the
need of more expensive higher rated power
supply unit. After the output has reached its
steady state set value, the power supply can
support surge loads with a higher short-term
power demand up to 150% of maximum rated
load (IO Max), for a maximum duration of 7
seconds. If the power boost lasts longer than
maximum duration, the output current will limit to
4.6A typ. and VO (output voltage) will start to
droop. Once VO is below 11Vdc typ., the power
supply will operate in “Hiccup mode”. The Power
Boost is repetitive, need to maintain the duty
cycle & recovery time to ensure that average
(R.M.S) output power shall not exceed the
continuous maximum, see duty cycle calculation
below.
𝐷𝑢𝑡𝑦 𝑐𝑦𝑐𝑙𝑒 (%) =
𝑇_𝑃
𝑇𝑜𝑡𝑎𝑙 𝑇𝑖𝑚𝑒
𝐴𝑣𝑒𝑟𝑎𝑔𝑒 𝑂𝑢𝑡𝑝𝑢𝑡 𝑃𝑜𝑤𝑒𝑟 (𝑃_{𝐴𝑣𝑔})
(𝑃𝑜𝑤𝑒𝑟 𝐵𝑜𝑜𝑠𝑡
=
× 𝑇_𝑃) + (𝑁𝑜𝑛-𝑃𝑒𝑎𝑘 𝑃𝑜𝑤𝑒𝑟 × 𝑇_𝑁)
𝑇𝑜𝑡𝑎𝑙 𝑇𝑖𝑚𝑒
OR
𝑁𝑜𝑛-𝑃𝑒𝑎𝑘 𝑃𝑜𝑤𝑒𝑟 =
�𝑃_{𝐴𝑣𝑔}
× 𝑇𝑜𝑡𝑎𝑙 𝑇𝑖𝑚𝑒� − (𝑃𝑜𝑤𝑒𝑟 𝐵𝑜𝑜𝑠𝑡
𝑇_𝑁
× 𝑇_𝑃)
 An example of Power Boost and Average Output Power
Power Boost
150%
150%
120%
120%
Peak Power
(WP)
120
120
96
96
Power Boost
Duration (TP)
7 sec
7 sec
7 sec
7 sec
Duty Cycle
10%
30%
10%
30%
Non-Peak
Power (WN)
75W
63W
78W
73W
Non-Peak Power
Duration (TN)
60 sec
16 sec
60 sec
16 sec
Total Time
(T)
67 sec
23 sec
67 sec
23 sec
It is not recommended to extend the duration of Power Boost to be longer than the specified duty cycle calculation, this may cause
damage to the PSU.
15
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (May 2016, Rev. 00)