R-7812-0.5.pdf 데이터시트 (총 7 페이지) - 파일 다운로드 R-7812-0.5 데이타시트 다운로드

No Preview Available !

Features
Switching
Regulator
• Efficiency up to 97%, no need for heatsinks
• Pin-out compatible with LM78XX linears
• Very low profile
• 4.75V - 32V Wide input range
• Short circuit protection, thermal shutdown
• Low ripple and noise
• IEC/EN60950-1 certified
DC/DC Converter
R-78-0.5
Description
The R-78xx-Series high efficiency switching regulators are ideally suited to replace 78xx linear
regultors and are pin compatible. The efficiency of up to 97% means that very little energy is wasted as
heat so there is no need for any heat sinks with their additional space and mounting costs. Low ripple and
noise figures and short circuit, overload and over-temperature protection round off the specifications of
this versatile converter series. This R-78xx-0.5 is fully certified to EN55032 EMC Standard and for
IEC/EN-60950-1 + AM2 Safety.
0.5 Amp
SIP3
Single Output
Selection Guide
Part
Number
Input
Voltage Range
[VDC]
R-781.5-0.5
4.75 - 30 (1)
R-781.8-0.5
4.75 - 32
R-782.5-0.5
4.75 - 32
R-783.3-0.5 4.75 (2) - 32
R-785.0-0.5
6.5 - 32
R-786.5-0.5
8.0 - 32
R-789.0-0.5
11 - 32
R-7812-0.5 15 - 32
R-7815-0.5
18 - 32
Output
Voltage
[VDC]
1.5
1.8
2.5
3.3
5.0
6.5
9.0
12
15
Output Efficiency
Current
@ min Vin @ max. Vin
[A]
[%] [%]
0.5
73 63
0.5 82 71
0.5 87 77
0.5
91 81
0.5 94 86
0.5 95 88
0.5 96 92
0.5
97 94
0.5 97 95
Notes:
Note1: 1.5V Output can be unstable with Vin>30VDC
Note2: Refer to Transient Response on page I-3
IEC/EN60950-1 certified
EN55032 compliant
Model Numbering
R-78__-0.5
Output Voltage
Output Current
www.recom-power.com
REV.: 5/2019
I-1

No Preview Available !

R-78xx-0.5
DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
Series
BASIC CHARACTERISTICS
Parameter
Absolute Maximum Input Voltage
Quiescent Current
Internal Power Dissipation
Minimum Load (3)
Internal Operating Frequency
Output Ripple and Noise
Absolute Maximum
Capacitive Load
Condition
nom. Vin= 24VDC
20MHz BW, without output
capacitor
1.5 - 6.5VDC
9 - 15.5VDC
20MHz BW (4)
1.5VDC
1.8 - 15.5VDC
1 second start up, no external components
<1 second start up + diode protection circuit
Min.
0%
280kHz
Typ.
5mA
330kHz
20mVp-p
30mVp-p
15mVp-p
25mVp-p
Notes:
Note3: Operation under no load will not harm the converter, but specifications may not be met
A minimum load of 6mA is recommended
Note4: Measurements are made with a 100nF MLCC across output (low ESR)
Max.
34VDC
7mA
0.4W
380kHz
30mVp-p
40mVp-p
20mVp-p
35mVp-p
220µF
6800µF
Efficiency vs. Vin (full load)
100
90
80
70
60
50
40 15, 12Vout
30 9Vout
5Vout
20 3.3Vout
10
1.8Vout
1.5Vout
0
0
5 10
15 20
Input Voltage [VDC]
Efficiency vs. Load (max. Vin)
25
30 34
Ripple vs. Vin (full load)
50 15Vout
45 12Vout
9Vout
40 5Vout
35
3.3Vout
1.8Vout
30 1.5Vout
25
20
15
10
5
0
0
5 10
15 20
Input Voltage [VDC]
Ripple vs. Load (nom. Vin)
25
30 34
100 50 15Vout
90
45
12Vout
9Vout
80 40 5Vout
70
35
3.3Vout
1.8Vout
60 30 1.5Vout
50 25
40 15Vout
30 12Vout
5Vout
20 3.3Vout
10
1.8Vout
1.5Vout
0
0 10 20 30 40 50 60 70 80 90 100
20
15
10
5
0
0 10 20 30 40 50 60 70 80 90 100
Output Load [%]
continued on next page
Output Load [%]
www.recom-power.com
REV.: 5/2019
I-2

No Preview Available !

DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
R-78xx-0.5
Series
Efficiency vs. Load (min. Vin)
100
90
80
70
60
50
40
30
20
10
0
0
15, 12Vout
5Vout
3.3Vout
1.8Vout
1.5Vout
10 20 30 40 50 60 70
Output Load [%]
80 90 100
Ripple vs. Load (min. Vin)
50 15Vout
45
12Vout
9, 3.3Vout
40 5Vout
35
1.8Vout
1.5Vout
30
25
20
15
10
5
0
0 10 20 30 40 50 60 70 80 90 100
Output Load [%]
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
Transient Response (5)
Condition
100% load
low line to high line, 100% load
1.5V - 6.5V
9V - 15.5V
10% to 100% load
1.5V - 6.5V
9V - 15.5V
100% <-> 50% load
100% <-> 10% load
Notes:
Note5: The R.783.3-0.5 requires Vin>5.5V to meet the Transient Response specifications
Value
±2.0% typ / ±3.0% max.
±0.2% typ. / ±0.4% max.
±0.1% typ. / ±0.2% max.
±0.4% typ. / ±0.6% max.
±0.25% typ. / ±0.4% max.
±75mV typ.
±100mV max.
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
Short Circuit Input Current
Optional Diode Protection Circuit
Condition
nom. Vin= 24VDC
Optional Protection 1:
Value
continuous, automatic recovery
+Vin
R-78xx-0.5
+Vin +Vout
+6V0oumt A max.
GND
Optional Protection 2:
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).
Application example:
Driving a high capacitive load
+Vin
GND
+Vin
+Vin
GND
R-78xx-0.5
+Vin +Vout
GND
GND
+Vout
+Vin
R-78xx-0.5
+Vin +Vout
GND
R-78xx-0.5
+Vin +Vout
GND
GND GND
+Vout=
+Vout - 0.3V
+Vout
6800µFGND
R-78xx-0.5
+Vin +Vout
GND
GND
+Vout=
+Vout - 0.3V
GND
GND GND
www.recom-power.com
REV.: 5/2019
I-3

No Preview Available !

DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
ENVIRONMENTAL
Parameter
Operating Temperature Range
Maximum Case Temperature
Temperature Coefficient
Thermal Impedance
Operating Altitude
Operating Humidity
Pollution Degree
MTBF
Derating Graph
Condition
with derating (see graph)
0.1m/s, vertical
non-condensing
according to MIL-HDBK-217F, G.B.
100
R-78xx-0.5
Series
+25°C
Value
-40°C to +85°C
+100°C
±0.015%/K
70K/W
2000m
95% RH max.
PD2
26163 x 103 hours
80
60
40
20
0
-40 0 20 40 60 80 100
71 85
Ambient Temperature [°C]
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Information Technology Equipment, General Requirements for Safety
EAC
RoHs 2+
EMC Compliance
Electromagnetic compatibility of multimedia equipment -
Emission requirements
ESD Electrostatic discharge immunity test
Radiated, radio-frequency, electromagnetic field immunity test
Fast Transient and Burst Immunity
Immunity to conducted disturbances, induced by radio-frequency fields
Power Magnetic Field Immunity
Report / File Number
1603123
RU-AT.49.09571
Condition
with external filter
(see filter suggestion below)
Contact ±6kV
3V/m
±1.0kV
3V
50Hz, 3A/m
www.recom-power.com
continued on next page
REV.: 5/2019
Standard
IEC60950-1:2005, 2nd Edition + Am 2:2013
EN60950-1:2006 + Am 2:2013
TP TC 004/2011
RoHS 2011/65/EU + AM2015/863
Standard / Criterion
EN55032, Class A and B
EN61000-4-2, Criteria A
EN61000-4-3, Criteria A
EN61000-4-4, Criteria A
EN61000-4-6, Criteria A
EN61000-4-8, Criteria A
I-4

No Preview Available !

DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
EMC Filter Suggestion according to EN55032
+Vin
C1
L1
C2
R-78xx-0.5
+Vin +Vout
GND
R-78xx-0.5
Series
+Vout
GND GND
Component List Class A
Component List Class B
MODEL
R-785.0-0.5
R-7812-0.5
C1
10µF
100V MLCC
C2
3.3µF
100V MLCC
L1
3.9µH choke
RLS-397
MODEL
R-785.0-0.5
R-7812-0.5
C1
10µF
100V MLCC
C2
3.3µF
100V MLCC
L1
5.6µH choke
RLS-567
Notes:
Note6: Filter suggestions are valid for indicated part numbers only. For other part numbers, please contact RECOM tech support for advice
DIMENSION AND PHYSICAL CHARACTERISTICS
Parameter
Material
Package Dimension (LxWxH)
Package Weight
Dimension Drawing (mm)
Type
case
potting
PCB
embossed logo
11.5 7.55
Marking
www.recom-power.com
0.70+0.10/-0.05
0.25±0.05
5.08
3.21
Recommended Footprint Details
123
Bottom View
Top View
123
2.54
REV.: 5/2019
Value
non-conductive black plastic, (UL94 V-0)
silicone, (UL94 V-0)
FR4, (UL94 V-0)
11.5 x 7.55 x 10.2mm
1.9g typ.
Pin Connections
Pin # Single
1 +Vin
2 GND
3 +Vout
Tolerance: xx.x= ±0.5mm
xx.xx= ±0.25mm
I-5