CUI Inc │ SERIES: V78W-500 │ DESCRIPTION: DC-DC CONVERTER
date 09/28/2011 │ page 2 of 5
INPUT
parameter
conditions/description
min
typ
max
units
operating input voltage
3, 5, 6.5 V models
9 V model
12 V model
15 V model
24 V model
9
48
48
48
48
48
72
72
72
72
72
Vdc
Vdc
Vdc
Vdc
Vdc
14
17
20
36
OUTPUT
parameter
conditions/description
measured from low line to high line
measured from 10% to full load
at 100% load
min
typ
±0.4
±0.3
±2
max
±1.0
±0.6
±3
units
%
line regulation
load regulation
voltage accuracy
switching frequency
temperature coefficient
quiescent current
%
%
100% load
120
800
kHz
%/°C
mA
-40°C ~ +85°C ambient
Vin = nominal, min. load
±0.015
5
1
±100
1.5
mV
ms
tendencies load
at 10% to 100% load
1.0
max capacitance load
100
μF
PROTECTIONS
parameter
conditions/description
continuous, automatic recovery
Vin = nominal
min
typ
max
1.2
units
short circuit protection
short circuit input power
thermal shutdown
current limit
0.72
160
700
W
°C
Vin = nominal
1200
mA
SAFETY AND COMPLIANCE
parameter
thermal resistance
safety approvals
EMI/EMC
conditions/description
min
typ
max
units
60
°C/W
EN-60950-1
EN55022, class B (refer to page 4), IEC/EN 61000-4-2 level 4
yes
RoHS compliant
MTBF
25°C (MIL-HDBK-217K)
71°C (MIL-HDBK-217K)
3,500,000
1,500,000
hours
hours
ENVIRONMENTAL
parameter
conditions/description
power derating above 71°C
non-condensing
min
typ
max
100
85
units
°C
case operating temperature
operating temperature
storage temperature
storage humidity
65
-40
-55
°C
125
95
°C
%
Note:
1. All specifications measured at TA=25°C, humidity <75%, nominal input voltage and rated output load unless otherwise specified.
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