Features
Unregulated
Converters
●
●
●
●
●
●
1:1 Input Range
Efficiency up to 80%
3kVDC and 4kVDC Isolation Option
Approved for Medical Applications
-40°C to +100°C Operating Temperature Range
Continuous Short Circuit Protection
ECONOLINE
DC/DC-Converter
Selection Guide
Part
Number
SMD
RAM-0505S*
RAM-1205S*
RAM-2405S*
Isolation
Voltage
(kV)
3
3
3
Input
Voltage
(VDC)
5
12
24
Output
Voltage
(VDC)
5
5
5
Output
Current
(mA)
200
200
200
Efficiency
(typ.)
78%
80%
80%
Capacitive
Load
(max.)
1000µF
1000µF
1000µF
1 Watt SMD
Single Output
* add Suffix “/H“ for Isolation 4kVDC/1min. e.g. RAM-0505S/H
* add Suffix “-R“ for tape&reel packing e.g. RAM-1205S-R or RAM-2405S/H-R
Specifications
(measured at TA = 25°C, nominal input voltage and rated output current unless otherwise specified)
Input Voltage Range
Output Voltage Accuracy
Line Voltage Regulation
Load Voltage Regulation
Operating Frequency (Vin=nominal input)
Efficiency
Minimum Load = 0%
Isolation Voltage
Isolation Voltage
Isolation Capacitance
Isolation Resistance
Short-Circuit Protection
Operating Temperature Range
Storage Temperature
Reflow Temperature
Vapor Phase Process
Relative Humidity
Package Weight
Packing Quantity
MTBF (+25°C)
MTBF (+85°C)
Certifications
EN Medical Safety
EN General Safety
Report: MDD1112018 + RM1112018
Medical Report + ISO14971 Risk Assessment
Report: SPCLVD1112018
EN60950-1, 2nd Edition
IEC/EN 60601-1 3rd Edition
All Types
All Types
using MIL-HDBK 217F
using MIL-HDBK 217F
RoHS compliant
(for more details see Application Notes)
(Viso=500V)
H-Suffix
H-Suffix
(tested for 1 second)
(rated for 1 minute**)
(tested for 1 second)
(rated for 1 minute**)
(low line to high line at max. load)
(10% to 100% full load)
±10%
-1% typ., ±5% max.
1.2% typ., 1.5% max.
10% typ., 15% max.
50mVp-p typ., 100mVp-p max.
20kHz min. / 50kHz typ. / 90kHz max.
see Selection Guide
Specifications valid for 10% minimum load only
3750 VDC
3000 VDC
5000 VDC
4000 VDC
4pF typ., 10pF max.
15GΩ min.
continuous
-40°C to +100°C
-55°C to +125°C
245°C (30 sec.), Peak 255°C (5sec.) max.
230°C (90 sec.) max.
95% RH
1.3g
Output Power (%)
100
80
60
40
20
0
-40
0
50
100
150
2011/65/EU
6/6
RoHS
Output Ripple and Noise (20MHz BW limited)
EN-60601-1 Certified
EN-60950-1 Certified
RAM
Derating-Graph
(Ambient Temperature)
27 pcs per Tube
500 pcs per Reel
4780 x 10³ hours
1310 x 10³ hours
Safe Operating Area
}
Detailed Information see
Application Notes chapter "MTBF"
Operating Temperature °C
**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.
Refer to Application Notes
E-62
REV: 0/2015
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ECONOLINE
DC/DC-Converter
Typical Characteristics
Tolerance Envelope
+10%
+5%
V Nom.
Typical L
oad Line
RAM Series
RAM-xx05S
Efficiency / Load
Deviation / Load
0505
Deviation from Nominal (%)
25
20
15
10
5
0
-5
-10
+5%
1%
5%
Efficiency %
100
80
60
40
20
0
1205
1205
0505
Output Voltage
2405
2405
0% 20%
40%
60%
Total Output current (%)
80%
100%
10%
50%
100%
0% 20%
40%
60%
Total Output current (%)
80%
100%
Output Load Current (%)
Notes
Note 1: Maximum capacitive load is defined as the capacitive load tha will allow start up in under 1 second without damage to the converter
EMC Filtering - Suggestion for EN55022 Class B
470pF/6kVDC
Input
DC
+
C1
Input
Voltage
Inductance/
Capacitance (C1)
10µF
4.7µF
22µF
Output
5V
12V
24V
RAM
GND
DC
GND
Package Style and Pinning
18.00
6.70
1.27x13
4.05 max.
10.65
Recommended Footprint Details
8.70
Pin Connections
Pin #
Function
1
2
12
13
14~17
27,28
+Vin
-Vin
-Vout
+Vout
NC
NC
1.40
28 27
9.00
17 16 15
RECOM
RAM-xx05S
Pb
NC = No Connection
11.80
TOP VIEW
Unit:
Tolerance:
mm
± 0.25 mm
1 2
12 13 14
1.27
0.90
13*1.27= 16.51
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.
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