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
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
Output
Current
[mA]
700
388
290
233
145
Efficiency
typ.
(1)
[%]
76 / 80 / 81 / 82
80 / 81 / 82 / 82
82 / 82 / 83 / 82
82 / 82 / 83 / 83
82 / 82 / 84 / 83
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)
±5
±9
±12
±15
im
/ /A /
/
REV.: 0/2018
in
2200
1000
±350
±194
±145
±117
76 / 80 / 81 / 82
80 / 81 / 82 / 82
82 / 82 / 83 / 83
83 / 82 / 83 / 83
±2200
±1600
±1000
±1000
2MOPP
250VAC
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
Model Numbering
el
Output Power
nom. Input Voltage
Output Voltage
Single
or
Dual
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REM3.5E-
Pr
Notes:
Note3: add suffix „/R8“ for 8kVDC or „/R10“ for 10kVDC isolation
Note4: add suffix „/CTRL“ for fitted CTRL pin
Note5: add suffix „/X1“ for Under Voltage Lockout Option
Ordering Examples
REM3.5E-0505S/R8/A = 5Vin, 5Vout, Single, 8kVDC Isolation and „A“ pinning
REM3.5E-1205D/R8/A/CTRL
= 12Vin, 5Vout, Dual, 8kVDC Isolation, „A“ pinning and with CTRL pin
REM3.5E-2405S/R8/A/X1
= 24Vin, 5Vout, Single, 8kVDC Isolation, „A“ pinning and with UVLO Option
= 24Vin, 5Vout, Dual, 10kVDC Isolation, „A“ pinning, CTRL pin and UVLO Option
REM3.5E-2405D/R10/A/CTRL/X1
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y
Max. Capacitive
Load
(2)
[µF]
4700
3300
2200
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.
file no.
IEC60601-1 pending
EN60601-1 pending
IEC60601-1-2 pending
UVLO Option
(5)
CTRL Option
(4)
Pinning
Isolation Option
(3)
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
Series
Condition
Min.
Typ.
Max.
Pi-type
9VDC
18VDC
36VDC
75VDC
4.5VDC
9VDC
Input Current
in
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
(7)
Start-up time
Rise time
Hold-up time
ON/OFF CTRL
im
DC-DC ON
DC-DC OFF
@5V V
CTRL
DC-DC OFF
20MHz BW
(6)
Input Current of CTRL Pin
Standby Current
Output Ripple and Noise
el
+V
in
R1
V
CTRL
Internal Operating Frequency
Notes:
Note6: Measurements are made with a 1.0µF MLCC across output. (low ESR)
Pr
ON/OFF CTRL Option
-V
in
continued on next page
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REV.: 0/2018
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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 0V<V
CTRL
<1.2V
Short or 4.8V<V
CTRL
<12VDC
25mA
350µA
120kHz
150mVp-p
+V
out
R1
470Ω
-V
out
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
Output Load [%]
Efficiency vs. Input Voltage
REM3.5E-0505S
100
90
80
im
Efficiency [%]
full load
8.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
9
Efficiency [%]
70
60
50
40
30
20
10
el
0
4.5
in
100
90
80
70
60
50
40
30
20
10
0
18
20
22
24
Input Voltage [VDC]
Pr
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
(7)
Cross Regulation
Transient Response
Condition
low line to high line, full load
10% to 100% load
dual output only
25% load step change
Notes:
Note7: Operation below 10% load will not harm the converter, but specifications may not be met
continued on next page
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REV.: 0/2018
MED-3
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60
50
40
30
20
10
18VDC
20VDC
24VDC
30VDC
36VDC
0
0
10
20
30
40
50
60
70
80
90
100
Efficiency [%]
70
70
Output Load [%]
REM3.5E-2405S
full load
26
28
30
32
34
36
Input Voltage [VDC]
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 [%]
-0.5
-1.0
-1.5
0
10
20
30
40
50
60
70
80
90
100
Output Load [%]
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
Isolation Voltage
(8)
Isolation Resistance
Isolation Capacitance
Insulation Grade
Leakage Current
Means of Protection
Internal
External
in
Type
below 100mΩ
“/R8” suffix
I/P to O/P
I/P to O/P
tested for 1 second
rated for 1 minute
“/R10” suffix
tested for 1 second
rated for 1 minute
im
Condition
according to MIL-HDBK-217F, G.B.
REV.: 0/2018
Medical Device Classification
clearance/creepage
clearance/creepage
el
Notes:
Note8: For repeat Hi-Pot testing, reduce the time and/or the test voltage
Note9: Refer to local safety regulations if input over-current protection is also required. Recommended fuse: slow blow type
Pr
ENVIRONMENTAL
Parameter
Operating Temperature Range
Maximum Case Temperature
Temperature Coefficient
Thermal Impedance
Operating Altitude
Operating Humidity
Pollution Degree
MTBF
full load @ natural convection 0.1m/s (see graph)
0.1m/s, horizontal
non-condensing
+25°C
+ 85°C
continued on next page
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MED-4
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-0.5
-1.0
-1.5
0
10
20
30
40
50
60
70
80
90
100
0
Deviation [%]
0.5
0.5
0
Output Load [%]
Value
8kVDC
4kVAC/60Hz
10kVDC
5kVAC/60Hz
10GΩ min.
continuous, hiccup mode, automatic recovery
20pF typ.
reinforced
0.8µA typ. / 1µA max.
2MOPP
built-in power supply
>8mm
>8mm
Value
-40°C to +85°C
+105°C
±0.02%/K typ. / ±0.05%/K max.
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
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)
im
REV.: 0/2018
in
Medical Electric Equipment, General Requirements for Safety and
Essential Performance
el
Report / File Number
pending
pending
pending
Medical Electric Equipment, General Requirements for Safety and
Essential Performance
Pr
RoHs 2+
Medical Electric Equipment, General Requirements for Safety and
Essential Performance (CB Scheme)
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
Air±15kV; Contact±8kV
10V/m
DC Port: ±2kV
DC Port: ±1kV
10Vr.m.s
continued on next page
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MED-5
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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
50
Condition
pending
with external filter
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
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