Features
Regulated
Converters
●
●
●
●
●
●
●
●
●
●
8kVDC
&
10kVDC Reinforced Isolation
Industry Standard DIP24 Package
3.5W Regulated Output
Continuous Short Circuit Protection
Wide Input 2:1
Medical Approved
EN, CSA and CB Certificates
2 Pinout Options
Control Pin Option
Efficiency to 86%
ECONOLINE
DC/DC-Converter
with 3 year Warranty
Description
The REC3.5 series uses a reinforced isolation transformer to offer exceptionally high isolation
of 8kVDC (4kVAC/1 minute) or 10kVDC (5kVAC/1minute) making it suitable for HT monitoring
circuits, mains power meters, IGBT isolated power supplies and other sophisticated industrial
and medical applications. The isolation capacitance of only 20pF makes them also suitable for
low leakage applications. The isolation transformer is recognized by CSA as reinforced isolated
with a minimum internal clearance of 2.4mm and a minimum internal creepage clearance of
4.6mm. The REC3.5 is available in two industry-standard pinouts (= "/A" or "/C"). Remote
on/off control is possible with the /CTRL option (A pinning only) and an optional undervoltage
lockout function is also available (="/X1"). The converters can deliver 140% rated power for short
periods of time to cope with applications with large capacitive loads or high start up currents.
3.5 Watt DIP24
Reinforced
Single
&
Dual
Output
Selection Guide
Part
Number
DIP24
REC3.5-xx05SRW/R*
REC3.5-xx09SRW/R*
REC3.5-xx12SRW/R*
REC3.5-xx15SRW/R*
REC3.5-xx24SRW/R*
REC3.5-xx05DRW/R*
REC3.5-xx09DRW/R*
REC3.5-xx12DRW/R*
REC3.5-xx15DRW/R*
Input
Voltage
(VDC)
9 - 18, 18 - 36, 36 - 75
4.5 - 9
9 - 18, 18 - 36, 36 - 75
4.5 - 9
9 - 18, 18 - 36, 36 - 75
4.5 - 9
9 - 18, 18 - 36, 36 - 75
4.5 - 9
9 - 18, 18 - 36, 36 - 75
4.5 - 9
9 - 18, 18 - 36, 36 - 75
4.5 - 9
9 - 18, 18 - 36, 36 - 75
4.5 - 9
9 - 18, 18 - 36, 36 - 75
4.5 - 9
9 - 18, 18 - 36, 36 - 75
4.5 - 9
±15
±117
±12
±145
±9
±194
±5
±350
24
145
15
233
12
290
9
388
Output
Voltage
(VDC)
5
Output Efficiency
Max
Current
Capacitive
(mA)
(%)
Load
(1)
700
80, 81, 82
77
81, 82, 83
80
82, 83, 84
82
84, 85, 86
83
83, 84, 85
82
80, 81, 82 ±2200µF
77
81, 82, 83 ±1600µF
80
81, 82, 83 ±1000µF
82
82, 83, 84 ±1000µF
80
Output Power (%)
4700µF
3300µF
2200µF
2200µF
1000µF
2011/65/EU
6/6
RoHS
E-314885
C22.2-No. 60950 Certified
C22.2-601.1 Certified
UL-60601.1 Certified
REC3.5/R
Derating-Graph
(Ambient Temperature)
120
100
80
60
40
20
0
R* = R8 or R10 for 8kVDC or 10kVDC isolation.
Note 1: Maximum capacitive load is defined as the capacitive load that will allow start up in under
1 second without damage to the converter.
2:1 Input
(REC3.5-S_DRW/R8(R10)
* add suffix "/A" or "/C" for pinning options,
xx = 4.5-9Vin = 05
see next page for details.
xx = 9-18Vin = 12
* add suffix “/CTRL” for control pin option (A Pinning only)
xx = 18-36Vin = 24
* add suffix "/X1" for Undervoltage Lockout
xx = 36-75Vin = 48
Ordering Examples:
REC3.5-0512DRW/R8/A/CTRL= 5V Vin, ±12V Vout, 8kVDC isolation, pinout “A”,control pin
REC3.5-4805SRW/R10/A = 48V Vin, 5V Vout, 10kVDC isolation, pinout “A”
REC3.5-1212DRW/R8/C/X1 = 12V Vin, ±12V Vout, 8kVDC isolation, pinout “C”,UVL
REC3.5-0505SRW/R10/A/CTRL/X1 = 5V Vin, 5V Vout, 10kVDC isolation, pinout “A”,control pin, UVL
www.recom-power.com
REV: 0/2015
Safe Operating Area
-40
85
Operating Temperature (°C)
0
25
50 75
105 125
Refer to Application Notes
E-145
ECONOLINE
DC/DC-Converter
Specifications
(
measured at TA = 25°C, nominal input voltage, full load and after warm-up)
Input Voltage Range
Output Voltage Accuracy
Line Regulation
Load Regulation
Input Surge
REC3.5-S_DRW
/R* Series
2:1
±2% max.
±0.3% max.
±0.6% max.
16V max.
25V max.
50V max.
100V max.
3.5V typ. (±20%)
7V typ. (±20%)
15V typ. (±10%)
32V typ. (±10%)
150mVp-p max.
1ms typ.
150kHz min. / 500kHz max.
Pi Network
MLCC capacitors only
20% Full Load
400mW max.
8000VDC
4000VAC / 60Hz
10000VDC.
5000VAC / 60Hz
20pF typ.
10 GΩ min.
Continuous, Auto Restart
-40°C to +85°C (see Graph)
105°C max.
-55°C to +125°C
95% RH
Non-Conductive Plastic
Silicone
20°C/W
14g
15 pcs per Tube
1206 x 10
3
hours
392x 10
3
hours
Class A
Class A
4.6 mm min.
2.4 mm min.
6.0 mm min.
6.0 mm min.
14.2 mm min.
EN 60601-1 3rd Edition
Undervoltage Lockout
Output Ripple and Noise
Transient Response
Switching Frequency
Input Filter
Capacitors
All types
Minimum Load
(Operation under no load will not damage the converter, but it may not meet all specifications)
No Load Power Consumption
Isolation Voltage
R8-Suffix
(tested for 1 second)
(rated for 1 minute**)
Isolation Voltage
R10-Suffix
(tested for 1 second)
(rated for 1 minute**)
Isolation Capacitance
Isolation Resistance
Short Circuit Protection
(Max operating temp. = 60°C during short circuit conditions)
Operating Temperature Range
(free air convection)
Case Temperature
Storage Temperature Range
Relative Humidity
Case Material
Potting Material
Thermal Impedance
Natural convection
Package Weight
Packing Quantity
MTBF (+25°C)
using MIL-HDBK 217F
Detailed Information see
Application Notes chapter "MTBF"
(+75°C)
using MIL-HDBK 217F
EMC
Conducted Emissions
EN55022
(with 470µF//0.1µF capacitors across input) Radiated Emissions
EN55022
Reinforced Isolation
Transformer Creepage
/R8 and /R10 Types
Transformer Clearance
/R8 and /R10 Types
PCB Creepage & Clearance
/R8 and /R10 Types
Optocoupler Creepage
/R8 and /R10 Types
External Creepage and Clearance
Plastic Case
Input <> Output pins
Certifications
EN Medical Safety
Report: MDD1207051 + RM1207051
Medical Report + ISO14971 Risk Assessment
IEC Medical Safety
CB Report: CA-10168-A1-UL
IEC 60601-1 3rd Edition
CSA
Medical Safety
Report: 2202478
C22.2 601-1 2nd Ed.
UL
Medical Safety
E314885-A4
UL 60601-1 3rd Edition
General Safety
Report: 2219431
C22.2 No. 60950-1-03
UL 60950-1 1st Ed.
Recognised as Reinforced Isolation
Supplement to Report: 2219431
(HL-LL)
(for output load current change from 20% to 100%)
(1 minute)
5V types
12V types
24V types
48V types
(/X1 Versions)
5V types
12V types
24V types
48V types
(0,1µF capacitor on output, 20MHz BW limited)
(25% step change)
(Full load and nominal input voltage)
REC3.5/R
}
**Any data referred to in this datasheet are of indicative nature and based on our practical experience only. For further details, please refer to our Application Notes.
E-146
REV: 0/2015
www.recom-power.com
ECONOLINE
DC/DC-Converter
Package Style and Pinning (mm) DIP 24 , Wide Input 2:1
REC3.5-S_DRW
/R* Series
Pin Connections
32.00
10.20
4.1
+0.25 /-0.5
20.30
Pin #
1 (option)
2
11
14
15.24
16
22
23
Single
CTRL
–Vin
NC
+Vout
–Vout
+Vin
+Vin
Dual
CTRL
–Vin
–Vout
+Vout
Com
+Vin
+Vin
“A” Pinning
/R8 & /R10
4.60
0.51
Recommended Footprint Details
1.00 ø+0.15/0
(1) 2
Bottom View
23 22
16
14
Top View
11
NC = No Connection
2.54
XX.X ± 0.5 mm
XX.XX ± 0.25 mm
CRTL Version only
2.54
CTRL Option
ON = Open or 0V< Vctrl <1.2V
OFF = 2.2V< Vctrl <12V
Vin+
0V
22,23
2
REC3.5-xxxx/CTRL
CTRL
1
1kW
1N4148
TTL Input
REC3.5/R
Off
On
“C” Pinning
/R8 & /R10
2.03
32.00
10.20
4.1
+0.25 /-0.5
0.51
20.30
Pin Connections
Pin #
1
2
10
11
12
13
15
23
24
Single
+Vin
+Vin
NC
NC
–Vout
+Vout
NC
–Vin
–Vin
Dual
+Vin
+Vin
Com
Com
NC
–Vout
+Vout
–Vin
–Vin
15.24
Recommended Footprint Details
1.00 ø+0.15/0
1 2
Bottom View
24 23
15
13
Top View
10 11 12
NC = No Connection
2.54
XX.X ± 0.5 mm
XX.XX ± 0.25 mm
2.54
The product information and specifications are subject to change without prior notice. RECOM products are not authorized for use in safety-critical applications (such as life support) without RECOM’s explicit
written consent. A safety-critical application is defined as an application where a failure of a RECOM product may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The buyer
shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized use of RECOM products in such safety-critical applications.
E-148
REV: 0/2015
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DIY/Open Source Hardware
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