Recom R-78C15-1.0 Manual


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Side 1/5
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REV.: 3/2019 I-1
Features
Switching
Regulator
Efficiency up to 96%, no need for heatsinks
Pin-out compatible with LM78XX linears
Low profile (L*W*H=11.6*8.5*10.4mm)
Short circuit protection, thermal shutdown
Low ripple and noise
IEC/EN60950 certified
Positive to negative converter
R-78C-1.0
Description
The R-78Cxx-1.0 series switching regulators are ideally suited to replace 1 Amp 78xx linear regulators
and are pin compatible. Efficiencies of up to 96% means that very little energy is wasted as heat and
the high input voltage is a useful feature.
DC/DC Converter
1.0 Amp
SIP3
Single Output
IEC60950-1 certified
EN60950-1 certified
EN55032 compliant
Specifications (measured at Ta= 25°C, minimum load, otherwise specified)
BASIC CHARACTERISTICS
Parameter Condition Min. Max.Typ.
Input Voltage Range Vout +3V 42VDC
Output Voltage Range 1.8VDC 15VDC
Minimum Load
(1)
0%
Quiescent Current 1mA
Internal Operating Frequency 280kHz 350kHz 420kHz
Output Ripple and Noise
(2)
20MHz BW
Vin= 24VDC Vout=1.8-15
full load
75mVp-p
30mVp-p
120mVp-p
Max. Capacitive Load
with normal start-up time, no external components
with <1 second start-up time + diode protection circuit
470µF
6800µF
Selection Guide
Part Input Output Output Efficiency
Number Voltage Range Voltage Current @ min Vin @ max. Vin
[VDC] [VDC] [A] [%] [%]
R-78C1.8-1.0 5 - 42 1.8 1.0 80 71
R-78C3.3-1.0 7 - 42 3.3 1.0 89 79
R-78C5.0-1.0 8 - 42 5 1.0 93 85
R-78C9.0-1.0 12 - 42 9 1.0 95 90
R-78C12-1.0 15 - 42 12 1.0 96 92
R-78C15-1.0 18 - 42 15 1.0 96 94
Notes:
Note1: No load operation will not damage these devices, however they may not meet all specifications
A minimum load of 10mA is required
Note2: Measurements are made with a 10µF MLCC across output. (low ESR)
REGULATIONS
Parameter Condition Value
Output Voltage Accuracy
full load ±2% typ. / ±3% max.
Line Voltage Regulation max. Vin, full load ±0.2% typ.
Load Voltage Regulation max. Vin. and 10% to 100% load ±0.4% typ.
Transient Response
100% <-> 50% load
100% <-> 10% load
±75mV max.
±200mV max.
Model Numbering
Output Voltage Output Current
R-78C__-1.0
www.recom-power.com
REV.: 3/2019 I-2
DC/DC Converter
Specifications (measured at Ta= 25°C, minimum load, otherwise specified)
R-78C-1.0
Series
PROTECTIONS
Parameter Condition Value
Short Circuit Protection (SCP) continuous, automatic recovery
Short Circuit Input Current nom. Vin = 24VDC 65mA typ.
ENVIRONMENTAL
Parameter Condition
Value
Operating Temperature Range with derating (see graph) -40°C to +85°C
Max. Case Temperature +100°C
Temperature Coefficient 0.015%/°C
Case Thermal Impedance 70°C/W max.
Operating Altitude 2000m
Operating Humidity non condensing 5% - 95% max., RH
Pollution Degree PD2
MTBF MIL-HDBK 217F
+25°C
+68°C
8600 x 10
3
hours
3880 x 10³ hours
-40 -20 0 20 40 70
68 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
External Zener Diode Calculation for Output Over Voltage Protection
+V
IN
+V
OUT
R-78Cxx-1.0
R-78C Vout Zener Voltage, Vz (Vzmin) Recommended Zener Diode
1.8V 2.0V (1.85V max.) (1.90V) MMSZ679T1G
3.3V 3.6V (3.4V max.) (3.42V) MMSZ4685T1G
5V 5.6V (5.15V max.) (5.32V) MMSZ4690T1G
9V 10V (9.27V max.) (9.50V) MMSZ4697T1G
12V 13V 14V (12.36V max.) (12.35V) (13.30V) MMSZ4700T1G / MMSZ4701T1G
15V 17V (15.45V max.) (16.15V) MMSZ4704T1G
Minimum Zener Breakdown Voltage (VZmin) OUTnom + 3% Accuracy V
SAFETY AND CERTIFICATIONS
Certificate Type (Safety) Report / File Number Standard
Information Technology Equipment, General Requirements for Safety
1603123
IEC60950-1:2005, 2nd Edition + AM 2:2013
EN60950-1:2006 + AM2:2013
RoHS 2+ RoHS 2011/65/EU + AM2015/863
EAC RU-AT.49.09571 TP TC 004/2011
continued on next page


Produkt Specifikationer

Mærke: Recom
Kategori: Audio/video konverter
Model: R-78C15-1.0

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