Features
Regulated
Converter
Description
•
•
•
•
•
•
2MOPP, 250VAC working voltage isolation
Clearance and creepage distance >8mm
Up to 10kVDC reinforced insulation
IEC/EN/UL 60601 certified with CB Report
(3rd Ed. Safety, 4th Ed. EMC)
-40°C to +85°C operation, no derating
2:1 wide input range
DC/DC Converter
REM3.5E
3.5 Watt
2:1 Input
DIP24
Single & Dual
Output
The REM3.5E series of medical grade regulated DC/DC converters feature reinforced 250VAC
continuous working isolation with >8mm creepage/clearance. The compact DIP24 package offers
industry standard pinouts with tightly regulated single/dual outputs and UVLO, SCP, OCP and OVP.
The operating ambient temperature range is from -40°C to +85°C without derating. The converters are
UL marked and certified to CB, IEC, EN and ANSI/AAMI 60601 3rd. Ed. Safety and 4th Ed. EMC medical
standards. The low 1µA leakage current makes them suitable for medical B, BF and CF applications.
Selection Guide
Part
Number
REM3.5E-xx05S/R
(3)
/A
(4,5)
REM3.5E-xx09S/R
(3)
/A
(4,5)
REM3.5E-xx12S/R /A
(3)
(3)
(4,5)
(4,5)
nom. Input
Voltage
[VDC]
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
Output
Voltage
[VDC]
5
9
12
15
24
±5
±9
±12
±15
Output
Current
[mA]
700
388
290
233
145
±350
±194
±145
±117
Efficiency
typ.
(1)
[%]
76 / 80 / 81 / 82
80 / 81 / 82 / 82
82 / 82 / 83 / 82
83 / 82 / 84 / 83
82 / 82 / 84 / 83
76 / 80 / 81 / 82
80 / 81 / 82 / 82
82 / 82 / 83 / 82
83 / 82 / 84 / 83
Max. Capacitive
Load
(2)
[µF]
4700
3300
2200
2200
1000
±2200
±1600
±1000
±1000
2MOPP
250VAC
REM3.5E-xx15S/R /A
REM3.5E-xx24S/R
(3)
/A
(4,5)
REM3.5E-xx05D/R
(3)
/A
(4,5)
REM3.5E-xx09D/R
(3)
/A
(4,5)
REM3.5E-xx12D/R
(3)
/A
(4,5)
REM3.5E-xx15D/R
(3)
/A
(4,5)
Notes:
Note1: Efficiency is tested at nominal input and full load at +25°C ambient
Note2: Max Cap Load is tested at nominal input and full resisitive load
E314885
CAN/CSA-C22.2 No. 60601-1:14
ANSI/AAMI ES60601-1
EN60601-1 pending
IEC60601-1 pending
IEC60601-1-2 pending
EN55032 pending
Model Numbering
REM3.5E-
Output Power
nom. Input Voltage
Output Voltage
Single
or
Dual
Notes:
Note3:
Note4:
Note5:
Note6:
Ordering Examples
REM3.5E-0505S/R8/A
REM3.5E-1205D/R10/A/ CTRL
REM3.5E-2405S/R8/A/X1
REM3.5E-2405D/R10/A/CTRL/X1
/R /A /
/
UVLO Option
(5)
CTRL Option
(4)
Pinning
Isolation
(3)
add suffix „/R8“ for 8kVDC or „/R10“ for 10kVDC isolation
add suffix „/CTRL“ for fitted CTRL pin
add suffix „/X1“ for Under Voltage Lockout Option
SMD versions available from Q2/2019
= 5Vin, 5Vout, Single, 8kVDC Isolation and „A“ pinning, DIP24
= 12Vin, 5Vout, Dual, 10kVDC Isolation, „A“ pinning, with CTRL pin
= 24Vin, 5Vout, Single, 8kVDC Isolation, „A“ pinning, DIP24 and with UVLO Option
= 24Vin, 5Vout, Dual, 10kVDC Isolation, „A“ pinning, DIP24, CTRL pin and UVLO Option
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REV.: 0/2019
MED-1
REM3.5E
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Internal Input Filter
Input Voltage Range
nom. Vin = 5VDC
nom. Vin = 12VDC
nom. Vin = 24VDC
nom. Vin = 48VDC
nom. Vin= 5VDC
Under Voltage Lockout (UVLO)
("/X1" version)
nom. Vin= 12VDC
nom. Vin= 24VDC
nom. Vin= 48VDC
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
4.5VDC
9VDC
18VDC
36VDC
5VDC
12VDC
24VDC
48VDC
3.9VDC
9VDC
7.9VDC
18VDC
16.7VDC
36VDC
34.3VDC
900mA
360mA
180mA
90mA
50mA
20mA
5mA
2.5mA
10%
0.6ms
0.45ms
0.6ms
Open or 0VDC<V
CTRL
<1.2VDC
Short or 4.8VDC<V
CTRL
<12VDC
25mA
350µA
120kHz
20MHz BW
Notes:
Note7: Measurements are made with a 0.1µF MLCC across output. (low ESR)
150mVp-p
Series
Condition
Min.
Typ.
Max.
Pi-type
9VDC
18VDC
36VDC
75VDC
4.5VDC
Input Current
nom. Vin = 5VDC
nom. Vin = 12VDC
nom. Vin = 24VDC
nom. Vin = 48VDC
nom. Vin = 5VDC
nom. Vin = 12VDC
nom. Vin = 24VDC
nom. Vin = 48VDC
Quiescent Current
Minimum Load
(8)
Start-up time
Rise time
Hold-up time
ON/OFF CTRL
Input Current of CTRL Pin
Standby Current
Intvernal Operating Frequency
Output Ripple and Noise
(7)
DC-DC ON
DC-DC OFF
V
CTRL
=5VDC
DC-DC OFF
ON/OFF CTRL Option
+V
in
R1
V
CTRL
+V
out
R1
470Ω
-V
out
-V
in
continued on next page
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REV.: 0/2019
MED-2
REM3.5E
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
Efficiency vs. Output Load
REM3.5E-0505S
100
90
80
100
90
80
Series
REM3.5E-2405S
Efficiency [%]
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
4.5VDC
5VDC
7VDC
9VDC
80
90
100
Efficiency [%]
70
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
18VDC
20VDC
24VDC
30VDC
36VDC
80
90
100
Output Load [%]
Output Load [%]
Efficiency vs. Input Voltage
(@ full Load)
REM3.5E-0505S
100
90
80
100
90
80
REM3.5E-2405S
Efficiency [%]
60
50
40
30
20
10
0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9
Efficiency [%]
70
70
60
50
40
30
20
10
0
18
20
22
24
26
28
30
32
34
36
Input Voltage [VDC]
Input Voltage [VDC]
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
(8)
Cross Regulation
Transient Response
low line to high line, full load
10% to 100% load
dual output only
25% load step change
Notes:
Note8: Operation below 10% load will not harm the converter, but specifications may not be met
continued on next page
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MED-3
Condition
Value
±1.5% typ.
±0.3% max.
0.5% typ.
±5.0% max.
5ms
REM3.5E
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
Deviation vs. Load
1.5
1.0
Series
1.5
1.0
REM3.5E-0505S
REM3.5E-2405S
Deviation [%]
0
-0.5
-1.0
-1.5
Deviation [%]
0
10
20
30
40
50
60
70
80
90
100
0.5
0.5
0
-0.5
-1.0
-1.5
0
10
20
30
40
50
60
70
80
90
100
Output Load [%]
Output Load [%]
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
“/R8” suffix
Type
below 100mΩ
I/P to O/P
I/P to O/P
tested for 1 second
rated for 1 minute
tested for 1 second
rated for 1 minute
Value
continuous, hiccup mode, automatic recovery
8kVDC
4kVAC/60Hz
10kVDC
5kVAC/60Hz
10GΩ min.
Isolation Voltage
(9)
“/R10” suffix
Isolation Resistance
Isolation Capacitance
Insulation Grade
Leakage Current
Means of Protection
Medical Device Classification
Internal
External
clearance/creepage
clearance/creepage
Notes:
Note9: For repeat Hi-Pot testing, reduce the time and/or the test voltage
Note10: Refer to local safety regulations if input over-current protection is also required. Recommended fuse: slow blow type
250VAC working voltage
20pF typ.
reinforced
0.8µA typ. / 1µA max.
2MOPP
built-in power supply
>8mm
>8mm
ENVIRONMENTAL
Parameter
Operating Temperature Range
Maximum Case Temperature
Temperature Coefficient
Thermal Impedance
Operating Altitude
Operating Humidity
Pollution Degree
MTBF
according to MIL-HDBK-217F, G.B.
continued on next page
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MED-4
Condition
full load @ natural convection 0.1m/s (see graph)
Value
-40°C to +85°C
+105°C
±0.02%/K typ. / ±0.05%/K max.
0.1m/s, horizontal
non-condensing
+25°C
+85°C
20K/W
3000m
5% - 95% RH max.
PD2
3600 x 10
3
hours
450 x 10
3
hours
REM3.5E
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
Derating Graph
(@ Chamber and natural convection 0.1m/s)
100
90
80
Series
Output Load [%]
70
60
50
40
30
20
10
0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110
85 95
Ambient Temperature [°C]
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Medical Electric Equipment, General Requirements for Safety and
Essential Performance
Medical Electric Equipment, General Requirements for Safety and
Essential Performance
Medical Electric Equipment, General Requirements for Safety and
Essential Performance (CB Scheme)
RoHS 2+
Report / File Number
E314885
pending
pending
Standard
CAN/CSA-C22.2 No. 60601-1:14, 3rd Edition: 2014
ANSI/AAMI ES60601-1:2012
EN60601-1:2006 + A12:2014
IEC60601-1:2005, 3rd Edition + AM1:2012
RoHS 2011/65/EU + AM2015/863
EMC Compliance
Medical electrical equipment Part 1-2: Electromagnetic
disturbances – Requirements and tests
Information technology equipment - Radio disturbance
characteristics - Limits and methods of measurement
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
Condition
pending
with external filter
Air ±15kV, Contact ±8kV
10V/m
DC Power Port: ±2kV
DC Power Port: ±1kV
10Vr.m.s
Standard / Criterion
IEC60601-1-2
EN55032, Class A and B
EN61000-4-2, Criteria A
EN61000-4-3, Criteria A
EN61000-4-4, Criteria A
EN61000-4-5, Criteria A
EN61000-4-6, Criteria A
continued on next page
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REV.: 0/2019
MED-5
