Technical Reference Note
Output Specifications
Rev.09.30.14_#1.0
AVO250-48S28B
Page 5
Table 3. Output Specifications:
Parameter
Condition1
Symbol
Min
Typ
Max
Unit
VIN,DC = 48VDC
IO=IO,max
Factory Set Voltage
Total Regulation
VO
27.72
28
28.28
Vdc
Inclusiveof line, load
temperature change,
warm-up drift
VO
27.2
28
28.8
Vdc
%VO
Vo
-
-
-
-
-
-
-
-
0.5
140
0.5
%
mV
%
Output Voltage Line Regulation
Output Voltage Load Regulation
All
All
%VO
Vo
-
-
140
0.02
32.5
mV
%/OC
V
Output Voltage Temperature Regulation
Output Voltage Trim Range
All
All
%VO
VO
-
18
Measure with a 1uF
ceramic capacitor in
parallel with a 10uF
tantalum capacitor, 0
to 20MHz bandwidth
Output Ripple, pk-pk
VO
-
40
-
mVPK-PK
Output Current
All
IO
IO
0
-
-
9
A
A
Output DC current-limit inception2
VO Load Capacitance3
9.9
680
18
All
CO
1000
4400
uF
25% ~ 50% ~ 25%
load change
slew rate = 0.1A/us
VO
Ts
-
-
75
0
-
-
mV
uSec
VO Dynamic Response
Peak Deviation
SettlingTime
50% ~ 75% ~ 50%
load change
slew rate = 0.1A/us
VO
Ts
-
-
80
0
-
-
mV
uSec
Rise time
IO = Imax
IO = Imax
Trise
-
-
60
60
100
100
mS
mS
Turn-on delay
time
Tturn-on
Turn-on transient
Output voltage
overshoot
IO = 0
%VO
-
-
5
%
Note 1 - Ta = 25 OC, airflow rate = 400 LFM, Vin = 48Vdc, nominal Vout unless otherwise noted.
Note 2 - Hiccup: auto-restart when over-current condition is removed.
Note 3 - High frequency and low ESR is recommended.
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