Technical Reference Note
Input Specifications
Rev.09.30.14_#1.0
AVO250-48S28B
Page 4
Table 2. Input Specifications:
Parameter
Conditions1
Symbol
VIN,DC
Min
36
31
30
1
Typ
Max
75
36
35
3
Unit
Vdc
Vdc
Vdc
V
Operating Input Voltage, DC
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Lockout Voltage Hysteresis
Maximum Input Current
All
48
-
IO = IO,
VIN,ON
max
IO = IO,
VIN,OFF
-
max
IO = IO,
-
max
VIN,DC = 36VDC
IIN,max
-
-
-
8
15
-
A
A
(IO = IO,max
)
Fast blow external
fuse recommended
Recommended Input Fuse
-
220
-
Low ESR capacitor
recommended
Recommended External Input Capacitance
Input Reflected Ripple Current
CIN
-
uF
mA
Through 12uH
inductor
11
-
TA=25 OC
IO = 100%IO,max
IO = 50%IO,max
IO = 20%IO,max
92
92
88
93
93
91
-
-
-
Operating Efficiency
η
%
Note 1 - Ta = 25 OC, airflow rate = 400 LFM, Vin = 48Vdc, nominal Vout unless otherwise noted.
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