Datasheet

www.recom-power.com
REV.: 4/2019 I-3
DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
R-78xx-1.0
Series
PROTECTIONS
Parameter Condition Value
Short Circuit Protection (SCP) continuous, automatic recovery
Short Circuit Input Current nom. Vin= 12VDC 100mA max.
Optional Diode Protection Circuit
REGULATIONS
Parameter Condition Value
Output Accuracy 100% load ±2.0% typ / ±3.0% max.
Line Regulation low line to high line, 100% load ±0.2% typ. / ±0.4% max.
Load Regulation 10% to 100% load ±0.4% typ. / ±0.6% max.
Transient Response 100% <-> 50% load ±85mV typ. / ±100mV max.
ENVIRONMENTAL
Parameter Condition
Value
Operating Temperature Range with derating (see graph) -40°C to +85°C
Maximum Case Temperature +100°C
Temperature Coefficient ±0.015%/K
Thermal Impedance 0.1m/s, vertical 70K/W
Operating Altitude 2000m
Operating Humidity non-condesing 95% RH max.
Pollution Degree PD2
MTBF according to MIL-HDBK-217F, G.B.
+25°C
+71°C
13338 x 10
3
hours
3880 x 10
3
hours
Add a blocking diode to Vout if
current can flow backwards into
the output, as this can damage the
converter when it is powered down.
The diode can either be fitted
across the device if the source is
low impedance or fitted in series
with the output (recommended).
Optional Protection 1: Optional Protection 2:
-40 60 80
85
10040200
0
20
30
40
60
80
100
Ambient Temperature [°C]
Output Power [%]
Derating Graph
+V
in
+V
out
GNDGND
+V
in
+V
out
=
+V
out
- 0.3V
R-78xx-1.0
GND
+V
out
+V
in
GNDGND
R-78xx-1.0
GND
+V
out
+V
in
+V
in
+V
out
GNDGND
+V
in
+V
out
=
+V
out
- 0.3V
R-78xx-1.0
GND
+V
out
+V
in
GNDGND
R-78xx-1.0
GND
+V
out
+V
in