Datasheet

www.recom-power.com
REV.: 6/2019 I-2
DC/DC Converter
Specifications (measured at Ta= 25°C, full load, nominal input voltage and after warm-up)
R-78E-1.0
Series
Efficiency vs. Load
R-78E3.3-1.0 R-78E5.0-1.0
REGULATIONS
Parameter Condition Value
Output Accuracy ±3.0% typ. / ±5.0% max.
Line Regulation low line to high line, full load ±1.0% max.
Load Regulation typ Vin. and 10% to 100% load ±1.5% max.
PROTECTIONS
Parameter Condition Value
Short Circuit Protection (SCP) automatic recovery
Over Current Protection (OCP) 100% = 1A 200% Load
0 10 20 30 40 50 60 70 80 90 100
100
80
60
40
90
70
50
30
20
10
0
Efficiency [%]
Output Load [%]
7Vin
12Vin
24Vin
28Vin
0 10 20 30 40 50 60 70 80 90 100
100
80
60
40
90
70
50
30
20
10
0
Efficiency [%]
Output Load [%]
8Vin
12Vin
24Vin
28Vin
ENVIRONMENTAL
Parameter Condition
Value
Operating Temperature Range natural convection and with derating (see graph) -40°C to +85°C
Humidity non-condensing 95%, RH max.
MTBF according to MIL-HDBK-217F, G.B. +25°C 3875 x 10
3
hours
-40 -20 0 20 40 70
85
60-30 -10 10 30 50 80 90 100
100
80
60
40
90
70
50
30
20
10
0
Output Load [%]
Ambient Temperature [°C]
Derating Graph