R-78B2.5-1.5L.pdf 데이터시트 (총 6 페이지) - 파일 다운로드 R-78B2.5-1.5L 데이타시트 다운로드

No Preview Available !

Features
Switching
Regulator
• Efficiency up to 95%, no heatsinks required
• Pin compatible with LM78XX linears
• Low profile (L/W/H=11.5 x 8.5 x 17.5mm)
• Wide input range
• Short circuit protection, thermal shutdown
• Low ripple and noise
• „L“ version with 90° pins
DC/DC Converter
R-78B-1.5(L)
Description
The R-78Bxx-1.5 series high efficiency switching regulators are ideally suited to replace 78xx
linear regulators and are pin compatible. The efficiency of up to 95% 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.
The L-Version with 90° pins allows direct replacement for laid-flat regulators where component height is
at a premium. Low ripple and noise figures and a short circuit input current of typically only 10mA round
off the specifications of this versatile converter series.
1.5 Amp
SIP3
Single Output
Selection Guide
Part
Number
Input
Voltage Range
[VDC]
Output
Voltage
[VDC]
Output Efficiency
Current
@ min Vin @ max. Vin
[A]
[%] [%]
R-78B1.5-1.5 (1)
4.75 - 18
1.5
1.5
83 78
R-78B1.8-1.5 (1)
4.75 - 18
1.8
1.5
85 81
R-78B2.5-1.5 (1) 4.75 - 18
2.5
1.5
88 84
R-78B3.3-1.5 (1)
4.75 - 18 3.3 1.5
91 88
R-78B5.0-1.5 (1)
6.5 - 18 5.0 1.5
94 92
R-78B6.5-1.5 (1)
8.0 - 18 6.5 1.5
95 93
Model Numbering
R-78B__-1.5(L)
Output Voltage
Pinning
Output Current
Notes:
Note1: add suffix “L” for 90° bent pins, e.g. R-78B5.0-1.5L
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Condition
Quiescent Current
nom. Vin= 12VDC
Internal Power Dissipation
Vout= 1.5VDC
Internal Operating Frequency
nom. Vin= 12VDC
Minimum Load (2)
Output Ripple and Noise (3)
20MHz BW
Ref. Back Ripple Current
Absolute Maximum
Capacitive Load
1 second start up, no external components
<1 second start up + diode protection circuit
Min. Typ. Max.
7mA 9mA
0.65W
300kHz 340kHz 380kHz
0%
15mVp-p 30mVp-p
150mAp-p 200mAp-p
1000µF
6800µF
Notes:
Note2: Operation under no load will not harm the converter, but specifications may not be met
A minimum load of 10mA is recommended
Note3: Output Ripple and Noise is tested from 10% to 100% load
continued on next page
EN55032 compliant
IEC/EN60950-1 certified
www.recom-power.com
REV.: 4/2019
I-1

No Preview Available !

R-78Bxx-1.5(L)
DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
Series
Efficiency vs. Vin (full load)
100
90
80
70
60
50
40
30
20
10
0
4.75 7
9 11 13
Input Voltage [VDC]
6.5Vout
5Vout
3.3Vout
2.5Vout
1.8Vout
1.5Vout
15 17 18
Ripple vs. Vin (full load)
50
45
40
35
30
25
20
15
10
5
0
4.75 7 9 11 13
Input Voltage [VDC]
6.5Vout
5Vout
3.3Vout
2.5Vout
1.8Vout
1.5Vout
15 17 18
Efficiency vs. Load (max. Vin)
100
90
80
70
60
50
40
30
20
10
0
0
6.5Vout
5Vout
3.3Vout
2.5Vout
1.8Vout
1.5Vout
10 20 30 40 50 60 70 80 90 100
Output Load [%]
Ripple vs. Load (max. Vin)
50 6.5Vout
45
5Vout
3.3Vout
40 2.5Vout
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 [%]
Efficiency vs. Load (min. Vin)
100
90
80
70
60
50
40
30
20
10
0
0
6.5Vout
5Vout
3.3Vout
2.5Vout
1.8Vout
1.5Vout
10 20 30 40 50 60 70 80 90 100
Output Load [%]
Ripple vs. Load (min. Vin)
50 6.5Vout
45
5Vout
3.3, 2.5Vout
40 1.8, 1.5Vout
35
30
25
20
15
10
5
0
0 10 20 30 40 50 60 70 80 90 100
Output Load [%]
www.recom-power.com
REV.: 4/2019
I-2

No Preview Available !

R-78Bxx-1.5(L)
DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
Series
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
Transient Response
Condition
100% load
low line to high line, 100% load
10% to 100% load
100% <-> 50% load
Recovery Time
Value
±2.0% typ / ±3.0% max.
±0.3% typ. / ±0.5% max.
±0.6% typ. / ±0.8% max.
±80mV typ. / ±120mV max.
1.0ms min. / 1.5ms typ.
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
Short Circuit Input Current
Optional Diode Protection Circuit
Condition
below 100mW
nom. Vin= 12VDC
Optional Protection 1:
Value
+Vin
R-78Bxx-1c.o5ntinuous,
+Vin +Vout
automatic recovery
1+0V0oumt 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).
ENVIRONMENTAL
Parameter
Operating Temperature Range
Maximum Case Temperature
Temperature Coefficient
Thermal Impedance
Operating Altitude
Operating Humidity
Pollution Degree
MTBF
+Vin
GND
+Vin
GND
R-78Bxx-1.5
+Vin +Vout
GND
GND
+Vout
+Vin
GND GND
R-78Bxx-1.5
+Vin +Vout
GND
+Vout=
+Vout - 0.3V
Condition
with derating (see grapGhN) D
0.1m/s, vertical
non-condensing
according to MIL-HDBK-217F, G.B.
+25°C
R-78Bxx-1.5
+Vin +Vout
GND
GND
+Vout=
+Vout - 0.3V
GND
Value
-40°C to +85°C
+100°C
±0.015%/K
60K/W
2000m
95% RH max.
PD2
5019 x 103 hours
Derating Graph
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] 71 85
www.recom-power.com
REV.: 4/2019
I-3

No Preview Available !

R-78Bxx-1.5(L)
DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
Series
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Information Technology Equipment, General Requirements for Safety
EAC
RoHs 2+
Report / File Number
1603123
RU-AT.49.09571
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
EMC Compliance
Electromagnetic compatibility of multimedia equipment -
Emission requirements
ESD Electrostatic Discharge Immunity Test
Radiated, Radio-Frequency, Electromagnetic Field Immunity Test
EMC Filter Suggestion according to EN55032
Condition
with external filter
(see filter suggestion below)
Air ±8kV, Contact ±4kV
3V/m
Standard / Criterion
EN55032, Class A and B
EN61000-4-2, Criteria A
EN61000-4-3, Criteria A
+Vin
C1
C2
L1 R-78Bxx-1.5
+Vin +Vout
GND
+Vout
GND GND
Component List Class A
MODEL
C1
R-78B3.3-1.5(L)
10µF
100V MLCC
L1
3.9µH choke
RLS-397
Component List Class B
MODEL
C1
R-78B3.3-1.5(L)
10µF
100V MLCC
C2
4.7µF
50V MLCC
L1
5.6µH choke
RLS-567
Notes:
Note4: 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
www.recom-power.com
Type
case
potting
continued on next page
REV.: 4/2019
Value
non-conductive black plastic, (UL94 V-0)
silicone, (UL94 V-0)
11.5 x 8.5 x 17.5mm
4g typ.
I-4

No Preview Available !

R-78Bxx-1.5(L)
DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
Series
Dimension Drawing (mm)
with suffix “L” bent pins
11.5
embossed logo
8.5
Marking
embossed logo
11.5 8.5
Marking
Pin Connections
Pin # Single
1 +Vin
2 GND
3 +Vout
Tolerance: xx.x= ±0.5mm
xx.xx= ±0.25mm
0.70+0.10/-0.05
0.25±0.05
Recommended Footprint Details
Bottom View
123
3.21 5.08
123
Top View
2.54
0.70+0.10/-0.05
Bottom View
123
5.08
6.10
Recommended Footprint Details
Top View
1 23
2.54
INSTALLATION AND APPLICATION
Typical Application Circuit
+Vin
R-78Bxx-1.5
+Vin +Vout
+Vout
GND
Application Examples
High Efficiency Multiple Output
+Vin
GND
www.recom-power.com
GND GND
R-78Bxx-1.5
+Vin +Vout
GND
22µF
P05P215D/P
+5V @ 1A
+15V @ 66mA
0V Isolated Com
-15V @ 66mA
+5V Rtn
- Wide input range suits both 12V and 7.2V battery packs
- 5.2kV isolated short circuit protected outputs for analogue circuits, e.g. medical grade interface
- High efficiency +5V/1A protected output for digital circuits
- Further decoupling filtering may be necessary between the converters
continued on next page
REV.: 4/2019
RP10-4812SEW
+12V @ 0.1A
I-5