RECOM RAM

Features
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Unregulated
Converters
ECONOLINE
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
DC/DC-Converter
Selection Guide
Part
Number
SMD
Isolation
Voltage
(kV)
Input
Voltage
(VDC)
Output
Voltage
(VDC)
Output
Current
(mA)
Efficiency
(typ.)
Capacitive
Load
(max.)
RAM-0505S*
3
5
5
200
78%
1000µF
RAM-1205S*
3
12
5
200
80%
1000µF
RAM-2405S*
3
24
5
200
80%
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
±10%
Output Voltage Accuracy
-1% typ., ±5% max.
Line Voltage Regulation
(low line to high line at max. load)
Load Voltage Regulation
(10% to 100% full load)
Output Ripple and Noise (20MHz BW limited)
Operating Frequency (Vin=nominal input)
1.2% typ., 1.5% max.
RoHS
10% typ., 15% max.
2011/65/EU
6/6
50mVp-p typ., 100mVp-p max.
20kHz min. / 50kHz typ. / 90kHz max.
Efficiency
EN-60601-1 Certified
EN-60950-1 Certified
see Selection Guide
Isolation Voltage
Isolation Capacitance
H-Suffix
H-Suffix
Specifications valid for 10% minimum load only
(tested for 1 minute)
3000 VDC
(tested for 1 second)
3750 VDC
(tested for 1 minute)
4000 VDC
(tested for 1 second)
5000 VDC
4pF typ., 10pF max.
Isolation Resistance
(Viso=500V)
15GΩ min.
Short-Circuit Protection
continuous
Operating Temperature Range
-40°C to +100°C
Storage Temperature
-55°C to +125°C
Reflow Temperature
RoHS compliant
245°C (30 sec.), Peak 255°C (5sec.) max.
Vapour Phase Process
(for more details see Application Notes)
230°C (90 sec.) max.
Relative Humidity
95% RH
Package Weight
1.3g
Packing Quantity
All Types
27 pcs per Tube
All Types
500 pcs per Reel
MTBF (+25°C) Detailed Information see
using MIL-HDBK 217F
4780 x 10³ hours
MTBF (+85°C) Application Notes chapter "MTBF"
using MIL-HDBK 217F
1310 x 10³ hours
}
Certifications
EN Medical Safety
Report: MDD1112018 + RM1112018
IEC/EN 60601-1 3rd Edition
Medical Report + ISO14971 Risk Assessment
EN General Safety
EN60950-1, 2nd Edition
RAM
Derating-Graph
(Ambient Temperature)
100
80
Output Power (%)
Minimum Load = 0%
Isolation Voltage
60
40
Safe Operating Area
20
0
-40
0
50
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.
E-60
100
150
Operating Temperature °C
Refer to Application Notes
REV: 0/2013
www.recom-electronic.com
RAM Series
ECONOLINE
DC/DC-Converter
Typical Characteristics
Tolerance Envelope
RAM-xx05S
+10%
Efficiency / Load
+5%
ad Line
Output Voltage
V Nom.
+5%
100
– 1%
80
– 5%
60
Efficiency %
40
10%
50%
1205
Deviation / Load
25
0505
20
Deviation from Nominal (%)
Typical L
o
2405
20
0
100%
0% 20%
40%
60%
Total Output current (%)
80%
100%
0505
1205
15
10
5
0
2405
-5
-10
0% 20%
40%
60%
Total Output current (%)
80%
100%
Output Load Current (%)
Package Style and Pinning
3rd angle
projection
8.70
18.00
6.70
4.05 max.
Pin Connections
Pin #
Function
10.65
1.27x13
1
28 27
17 16 15
RECOM
RAM-xx05S
9.00
-Vin
12
-Vout
13
+Vout
14~17
NC
27,28
NC
RAM
NC = No Connection
Pb
1.27
0.50 pin width
12
+Vin
2
Unit:
Tolerance:
12 13 14
mm
± 0.25 mm
EMC Filtering - Suggestion for EN55022 Class B
Input
Voltage
470pF/6kVDC
DC
Input
+
Output
Inductance/
Capacitance (C1)
5V
10µF
12V
4.7µF
24V
22µF
C1
GND
www.recom-international.com
DC
GND
REV:0/2013
E-61