Features
Unregulated
Converters
Description
• 3kVDC or 4kVDC isolation
• Optional continuous short circuit protection
• UL94V-0 package material
• Efficiency up to 84%
• Suitable for IGBT applications
DC/DC Converter
RK_RH
1 Watt
SIP7
Single and Dual
Output
The RK and RH Series DC/DC-Converter complements RECOM’s industrial range of converters with
very high isolations of 3KV and 4kVDC. The extended operating temperature range covering –40°C to
+90°C is a standard feature. The converters are IEC/EN/UL60950-1 certified, and are suitable for IGBT
driver applications.
Selection Guide
Part
Number
RK-xx05S
(3,4)
RK-xx09S
(3,4)
RK-xx12S
(3,4)
RK-xx15S
RH-xx05D
(3,4)
(3,4)
nom. Input
Voltage Range
[VDC]
5,12, 15, 24
5,12, 15, 24
5,12, 15, 24
5,12, 15, 24
5,12, 15, 24
5,12, 15, 24
5,12, 15, 24
5,12, 15, 24
5, 12, 24
Output
Voltage
[VDC]
5
9
12
15
±5
±9
±12
±15
+15/-9
Output
Current
[mA]
200
111
84
66
±100
±56
±42
±33
+33/-56
Efficiency
typ.
(1)
[%]
70-78
70-80
78-82
80-82
74-78
76-79
78-84
80-84
70-81
Max. Capacitive
Load
(2)
[µF]
1000
1000
470
470
±470
±470
±220
±220
+220/-470µF
RH-xx09D
(3,4)
RH-xx12D
(3,4)
RH-xx15D
(3,4)
RH-xx1509D
(3,4)
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 resistive load and is defined as the
capacitive load that will allow start up in under 1s without damage to the converter
E358085
Model Numbering
RK- __ __S/
Input Voltage
Output Voltage
Protection
(3)
Isolation Option
(4)
Single
UL60950-1 certified*
CSA/CAN C22.2 No. 60950-1-07 certified*
IEC60950-1 certified
EN60950-1 certified
*+15/-9 version excluded
RH- __ __D/_
Input Voltage
Output Voltage
Protection
(3)
Isolation Option
(4)
Dual
Notes:
Note3: standard part is without Continuous Short Circuit Protection
add suffix „/P“ for Continuous Short Circuit Protection
Note4: add suffix „/H“ for 4kVDC Isolation
or add suffix „/HP“ for Continuous Short Circuit Protection and 4kVDC Isolation
Ordering Examples:
RH-123.3D/P: 12V Input Voltage, ±3.3V Output Voltage, Dual Output with continuous short circuit protection
RK-0509S/HP: 5V Input Voltage, 9V Output Voltage, Single Output with 4kVDC Isolation and continuous short circuit protection
www.recom-power.com
REV.: 2/2018
ECO-1
RK_RH
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Internal Input Fuse
Input Voltage Range
Minimum Load
(5)
Start-up Time
Internal Operating Frequency
Output Ripple and Noise
20MHz BW limited
Notes:
Note5: Operation below 10% load will not harm the converter, but specifications may not be met
50kHz
100kHz
±10%
0%
250ms
105kHz
100mVp-p
Series
Condition
Min.
Typ.
Max.
capacitors
Efficiency vs. Load
RK-xx05S
100
90
80
100
90
80
RK-xx09S
Efficiency [%]
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.305
0505
1205
90
100
Efficiency [%]
70
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.309
0509
1209
90
100
Output Load [%]
Output Load [%]
RK-xx12S
100
90
80
100
90
80
RK-xx15S
Efficiency [%]
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.312
0512
1212
90
100
Efficiency [%]
70
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.315
0515
1215
90
100
Output Load [%]
Output Load [%]
www.recom-power.com
REV.: 2/2018
ECO-2
RK_RH
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
Accuracy vs. Load
RH-xx12D
25
20
15
3.312
0512
1212
25
20
15
3.315
0515
1215
Series
RH-xx15D
Deviation [%]
10
5
0
-5
-10
0
10
20
30
40
50
60
70
80
90
100
Deviation [%]
10
5
0
-5
-10
0
10
20
30
40
50
60
70
80
90
100
Output Load [%]
Output Load [%]
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
Condition
without suffix
with suffix “/P”
without suffix
tested for 1 second
rated for 1 minute
tested for 1 second
rated for 1 minute
Value
1 second
continuous
3kVDC
1.5kVAC
4kVDC
2kVAC
20pF min. / 75pF max.
20pF min. / 65pF max.
15GΩ min.
functional
Isolation Voltage
(6)
I/P to O/P
with suffix “/H”
Isolation Capacitance
Isolation Resistance
Insulation Grade
RK types
RH types
Notes:
Note6: For repeat Hi-Pot testing, reduce the time and/or the test voltage
Note7: Refer to local wiring regulations if input over-current protection is also required. Recommended fuse: T1A slow blow type
ENVIRONMENTAL
Parameter
Operating Temperature Range
Operating Altitude
Operating Humidity
Pollution Degree
RK type
MTBF
according to MIL-HDBK-217F; G.B.
RH type
continued on next page
www.recom-power.com
REV.: 2/2018
ECO-5
Condition
full load @ free air convection (see graph)
non-condensing
+25°C
+85°C
+25°C
+85°C
Value
-40°C to +90°C
2000m
5% - 95% RH max.%
PD2
992 x 10³ hours
145 x 10³ hours
1012 x 10³ hours
151 x 10³ hours
Microcontroller MCU
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