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
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 recognised 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
R* = R8 or R10 for 8kVDC or 10kVDC isolation.
2:1 Input
(REC3.5-S_DRW/R8(R10)
xx = 4.5-9Vin = 05
xx = 9-18Vin = 12
xx = 18-36Vin = 24
xx = 36-75Vin = 48
±15
±117
±12
±145
±9
±194
±5
±350
24
145
15
233
12
290
9
388
Output
Voltage
(VDC)
5
Output Efficiency Max. Cap.
Current
Load
(mA)
(%)
700
80, 81, 82
77
81, 82, 83
80
82, 83, 84
82
84, 85, 86
83
83, 84, 85
82
80, 81, 82
77
81, 82, 83
80
81, 82, 83
82
82, 83, 84
80
±100µF
±100µF
±220µF
±470µF
220µF
330µF
470µF
470µF
1000µF
2002/95/EC
6/6
RoHS
C22.2-No. 60950 Certified
C22.2-601.1 Certified
UL Certification Pending
REC3.5/R
Derating-Graph
(Ambient Temperature)
Output Power (%)
* add suffix "/A" or "/C" for pinning options,
see next page for details.
* add suffix “/CTRL” for control pin option (A Pinning only)
* add suffix "/X1" for Undervoltage Lockout
* add suffix -R for Tape and Reel packaging
120
100
80
60
40
20
0
Safe Operating Area
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-international.com
REV:0/2010
-40
85
Operating Temperature (°C)
0
25
50 75
105 125
Refer to Application Notes
E-103
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
(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)
All types
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
10% Full Load
400mW max.
8000VDC min.
4000VAC min.
see Application Notes
10000VDC min.
5000VAC min.
see Application Notes
20pF typ.
10 GΩ min.
(Max operating temp. = 60°C during short circuit conditions)
(free air convection)
Continuous, Auto Restart
-40°C to +85°C (see Graph)
105°C max.
-55°C to +125°C
95% RH
Non-Conductive Plastic
Natural convection
Silicone
20°C/W
14g
15 pcs per Tube
100 pcs per Reel
using MIL-HDBK 217F
using MIL-HDBK 217F
EN55022
EN55022
/R8 and /R10 Types
/R8 and /R10 Types
/R8 and /R10 Types
/R8 and /R10 Types
Input <> Output pins
Ref: CA/11158/CSA
Report: 2202478
Report: 2219431
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.
IEC60601-1:1988 + A1: 1991 + A2:1995
C22.2 601-1 2nd Ed.
UL 60601-1 1st Ed.
C22.2 No. 60950-1-03
UL 60950-1 1st Ed.
Supplement to Report: 2219431
www.recom-electronic.com
Undervoltage Lockout
Output Ripple and Noise
Transient Response
Switching Frequency
Input Filter
Capacitors
Mimimum Load
(Operation under no load will not damage the converter, but it may not meet all specifications)
(tested for 1 second)
(rated for 1 minute)
(long term isolation)
(tested for 1 second)
(rated for 1 minute)
(long term isolation)
No Load Power Consumption
Isolation Voltage
R8 types
Rated Working Voltage
Isolation Voltage
Rated Working Voltage
Isolation Capacitance
Isolation Resistance
R10 types
REC3.5/R
Short Circuit Protection
Operating Temperature Range
Case Temperature
Storage Temperature Range
Relative Humidity
Case Material
Potting Material
Thermal Impedance
Package Weight
Packing Quantity
MTBF (+25°C)
Detailed Information see
(+75°C)
Application Notes chapter "MTBF"
EMC
Conducted Emissions
(with 470µF//0.1µF capacitors across input) Radiated Emissions
Reinforced Isolation
Transformer Creepage
Transformer Clearance
PCB Creepage & Clearance
Optocoupler Creepage
External Creepage and Clearance
Plastic Case
Certifications
CB Report
Medical Safety
CSA
Medical Safety
General Safety
}
Recognised as Reinforced Isolation
REV: 0/2010
E-104
MCU
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