R-78B1.2-2.0.pdf 데이터시트 (총 6 페이지) - 파일 다운로드 R-78B1.2-2.0 데이타시트 다운로드

No Preview Available !

Features
Switching
Regulator
• Efficiency up to 96%, no need for heatsinks
• 2A continuous output current
• Vin up to 32V
• Vout: 1.2V - 15V
• Wide operating temperature -40°C to +70°C at full load
• Continuous short circuit protection
• Pin compatible with TO220 linear regulators
• Positive to negative
DC/DC Converter
R-78B-2.0
Description
The R-78Bxx-2.0 series high efficiency switching regulators are ideally suited to replace 78xx linear
regulators and are pin compatible. The efficiency of up to 96% means that very little energy is wasted
as heat. Full power is available over a temperature range of -40°C up to 70°C without the need for
heatsinks with their additional space and mounting costs. A high input voltage of up to 32VDC and
output voltages from 1.2V up to 15V, low ripple and noise figures and a short circuit input current of
typically only 50mA round off the specifications of this versatile converter series.
2.0 Amp
SIP3
Single Output
Selection Guide
Part
Number
R-78B1.2-2.0
R-78B1.5-2.0
R-78B1.8-2.0
R-78B2.5-2.0
R-78B3.3-2.0
R-78B5.0-2.0
R-78B9.0-2.0
R-78B12-2.0
R-78B15-2.0
Input
Voltage Range
[VDC]
4.75 - 32
4.75 - 32
4.75 - 32
4.75 - 32
4.75 - 32
6.5 - 32
11 - 32
15 - 32
18 - 32
Output
Voltage
[VDC]
1.2
1.5
1.8
2.5
3.3
5
9
12
15
Output
Current
[mA]
2000
2000
2000
2000
2000
2000
2000
2000
2000
Efficiency @ full load
@ min Vin @ max. Vin
[%] [%]
87 72
90 79
91 80
92 84
92 86
94 90
95 93
96 94
96 95
Max. Capacitive
Load (1)
[µF]
3300
3300
3300
2300
1800
820
620
470
470
Notes:
Note1: Max. cap load is tested by nominal input and full resisitive load
Model Numbering
R-78B__-2.0
Output Voltage
Output Current
IEC62368-1 certified
EN62368-1 certified
EN55032 compliant
CB report
www.recom-power.com
REV.: 4/2019
I-1

No Preview Available !

R-78B-2.0
DC/DC Converter
Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified)
Series
BASIC CHARACTERISTICS
Parameter
Input Voltage Range
Maximum Reverse Voltage
Inrush Current
Quiescent Current
Internal Power Dissipation
Start-up time
Rise Time
Internal Operating Frequency
Minimum Load
Output Ripple and Noise (2)
nom. Vin= 24VDC
Condition
1.2Vout - 3.3Vout
5Vout
9Vout
12Vout
15Vout
Min.
4.75VDC
6.5VDC
11VDC
15VDC
18VDC
Typ.
24VDC
nom. Vin= 24VDC
Vout= 1.5VDC
nom. Vin= 24VDC
0%
20MHz BW
Vout 3.3VDC
Vout 5VDC
Notes:
Note2: Measurements are made with a 100nF MLCC across output (low ESR)
2A
2mA
0.35W
10ms
50µs
460kHz
50mVp-p
75mVp-p
Max.
32VDC
0V
0.8W
Efficiency vs. Load
R-78B3.3-2.0
R-78B5.0-2.0
100 100
90 90
80 80
70 70
60 60
50
40
30
20
10
0
0 10 20 30 40 50 60 70
Output Load [%]
Efficiency vs. Input Voltage
R-78B3.3-2.0
4.75Vin
6Vin
9Vin
12Vin
15Vin
24Vin
32Vin
80 90 100
50
40
30 6.5Vin
12Vin
20 15Vin
10
24Vin
32Vin
0
0 10 20 30 40 50 60 70 80 90 100
Output Load [%]
R-78B5.0-2.0
100 100
90 90
80 80
70 70
60 60
50 50
40 40
30 30
20 20
10 10
0
4.75 9
13 17 21 25
Input Voltage [VDC]
29 32
0
6.5 10
14 18 22
Input Voltage [VDC]
26
30 32
www.recom-power.com
REV.: 4/2019
I-2

No Preview Available !

R-78B-2.0
DC/DC Converter
Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified)
Series
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
Condition
100% load
low line to high line, full load
0% to 100% load
Value
±2.0% typ.
±0.5% typ.
±1.0% typ.
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
Short Circuit Input Current
Condition
below 100m
nom. Vin= 24VDC
<5Vout
5Vout
Value
continuous, automatic recovery
50mA typ.
75mA typ.
ENVIRONMENTAL
Parameter
Operating Temperature Range
Maximum Case Temperature
Temperature Coefficient
Operating Altitude
Operating Humidity
Pollution Degree
Vibration
MTBF
Derating Graph
(@ Chamber and natural convection 0.1m/s)
Condition
without derating (see graph)
non-condensing
according to MIL-HDBK-217F, G.B. +25°C
Value
-40°C to +70°C
+105°C
0.02%/°C typ.
5000m
95% RH max.
PD2
10-55Hz, 2G, 30min along X, Y and Z axis
6349 x 103 hours
100
90
80
70
60
50
40
30
20
10
0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100
Ambient Temperature [°C]
85
www.recom-power.com
REV.: 4/2019
I-3

No Preview Available !

R-78B-2.0
DC/DC Converter
Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified)
Series
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Audio/video, information and communication technology equipment
Safety requirements (CB Scheme)
EAC
RoHS2+
Report / File Number
L0339m38-B1-L
RU-AT.49.09571
Standard
IEC62368-1: 2014, 2nd Edition
EN62368-1: 2014
TP TC 004/2011
RoHS 2011/65/EU + AM2015/863
EMC Compliance
Electromagnetic compatibility of multimedia equipment - Emission requirements
Information technology equipment - Immunity characteristics - Limits and methods
of measurement
Electromagnetic compatibility of multimedia equipment - Emission requirements
ESD Electrostatic discharge immunity test
Radiated, radio-frequency, electromagnetic field immunity test
Fast Transient and Burst Immunity
Surge Immunity
Immunity to conducted disturbances, induced by radio-frequency fields
Power Magnetic Field Immunity
EMC Filtering Suggestion according to EN55032
Condition
with external components
(see filter suggestion below)
Air ±8kV; Contact ± 4kV
3 V/m
±0.5kV
±0.5kV
3V
50Hz/ 1A/m
Standard / Criterion
EN55032, Class A
EN55032, Class B
EN55024:2010
EN55032: 2013, Class B
IEC61000-4-2, Criteria A
IEC61000-4-3, Criteria A
IEC61000-4-4, Criteria A
IEC61000-4-5, Criteria A
IEC61000-4-6, Criteria A
IEC61000-4-8, Criteria A
+VIN
C1
L1
C2
R-78Bxx-2.0
+Vin +Vout
GND
+VOUT
GND GND
EN55022
Class A
Class B
C1
4.7µF 50V MLCC 1206
10µF 50V MLCC 1210
C2 L1
N/A 3.3µH Choke
4.7µF 50V MLCC 1206 10µH Choke
DIMENSION and PHYSICAL CHARACTERISTICS
Parameter
Material
Dimension (LxWxH)
Weight
www.recom-power.com
Type
case
potting
PCB
continued on next page
REV.: 4/2019
Value
plastic, (UL94 V-0)
silicone, (UL94 V-0)
FR4, (UL94 V-0)
11.5 x 8.5 x 17.5mm
4.0g typ.
I-4

No Preview Available !

R-78B-2.0
DC/DC Converter
Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified)
Series
Dimension Drawing (mm)
11.5
embossed logo
8.5
Marking
0.64+0.10/-0.05
0.64+0.10/-0.05
Recommended Footprint Details
Bottom View
123
3.21 5.08
123
Top View
2.54
Pin Connections
Pin # Single
1 +Vin
2 GND
3 +Vout
Tolerance: xx.x= ±0.5mm
xx.xx= ±0.25mm
INSTALLATION and APPLICATION
Positive to Negative
0V
+Vin
C1
R-78B-2.0
Vin Vout
GND
0V
C2
-Vout
Part
Number
R-78B1.2-2.0
R-78B1.5-2.0
R-78B1.8-2.0
R-78B2.5-2.0
R-78B3.3-2.0
R-78B5.0-2.0
R-78B9.0-2.0
R-78B12-2.0
R-78B15-2.0
Input
Voltage Range
[VDC]
4.75 - 32
4.75 - 32
4.75 - 32
4.75 - 32
4.75 - 32
6.5 - 32
11 - 32
15 - 32
18 - 32
Output
Voltage
[VDC]
-1.2
-1.5
-1.8
-2.5
-3.3
-5
-9
-12
-15
Output
Current
[mA]
-1000
-1000
-1000
-1000
-1000
-1000
-1000
-1000
-1000
Efficiency @ full load
@ min Vin @ max. Vin
[%] [%]
86 86
74 87
76 88
79 89
83 89
86 90
90 91
91 92
92 93
External
Capacitor
[C1 / C2]
10µF / 10µF
10µF / 10µF
10µF / 10µF
10µF / 10µF
10µF / 10µF
10µF / 10µF
10µF / 10µF
10µF / 10µF
10µF / 10µF
www.recom-power.com
REV.: 4/2019
I-5