RECOM RP125

Features
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Single Outputs up to 35A
Input/Output 1.6kVDC Isolation
Adjustable Output Voltage
No Minimum Load
Under -Voltage Lockout
Industry Standard Footprint
Fixed Operating Frequency
Halt Tested
Compact 36.83 x 57.91 x 12.7mm Package
High Efficiency to 90%
INNOLINE
DC/DC-Converter
RP125-SB
Series
125 Watt
Single
Output
Selection Guide
Efficiency (5)
Part
Number
Single Output
Input
Voltage
(VDC)
Output
Voltage
(VDC)
Output
Current
(A)
Load
Regulation
(mV)
RP125-481.8SB
36 – 75
1.8
35
5.4
84
RP125-482.5SB
36 – 75
2.5
35
7.5
86
RP125-483.3SB
36 – 75
3.3
30
10
88
RP125-4805SB
36 – 75
5.0
25
15
90
%
Add suffix “P” for positive logic ON/OFF control.
Description
The RP125-SB Series has been specifically designed for low voltage silicon applications. A wide input
voltage range, output voltage trim and sense inputs are all standard features. The converters also benefit from comprehensive over-current, over-voltage and over-temperature protection.
The RP125-SB is ideally suited to telecom, network and industrial applications.
Notes:
1. Maximum output deviation is 10% inclusive of remote sense. If remote sense is not being used,
the +Vsense should be connected to its corresponding +Vout
2. Standard is negative remote ON/OFF, add suffix“PP” for positive remote ON/OFF.
3. Heat sink is optional and P/N: 7G-0021, 7G-0022, 7G-0023, 7G-0024.
4. The RP125-SB meets level A and level B conducted emissions only with external components connected before
the input pin to the converter.
5. Typical value at nominal input voltage and full load.
6. BASEPLATE GROUNDING : Base-plate should be grounded at one of the four screw bolts prior to operation.
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RP125-SB
Series
INNOLINE
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25°C)
Input Voltage Range
Under-Voltage Lockout
36-75VDC
Power Up
Power Down
Input Filter
Input Surge Voltage 100ms max
Start up time
Remote ON/OFF (Note 2)
(Positive logic)
(Negative logic)
L-C type
100VDC
Nominal Vin and constant resistive load
ON=Open or 3.5V < Vr < 15V,
OFF=Short or 0V < Vr < 1.2V,
ON=Short or 0V < Vr < 1.2V,
OFF=Open or 3.5V < Vr < 15V,
Continuous Output Power
Output Voltage Accuracy
full load and nominal Vin
±1.5%
0%
Line Regulation
low line to high line at full load
Load Regulation
0% to 100% full load
Remote Sense (Note 1)
±0.2%
See table
10% of Vout
With 10µF tantalum and 1µF ceramic across Output
Temperature Coefficient
100mVp-p
±0.02%/ºC
25% load step change
Over Voltage Protection threshold (Hiccup)
200µs
120% of Vout
Over Current Protection threshold
110% ~ 140% of Iout Rated
Short Circuit Protection
Efficiency (at nominal input voltage, full load)
Isolation Voltage
IIN=1mA max.
IIN=1mA max.
IIN=1mA max.
IIN=1mA max.
+10%, -20%
Minimum Load
Transient Response Recovery Time
25ms typ.
125W max.
Output Voltage Adjustment (Note 1)
Ripple and Noise 20MHz bandwidth
(48V nom.)
34V typ.
32V typ.
Hiccup, Automatic recovery
Input to Output
Input to Case
Output to Case
up to 90%.
1600VDC min.
1000VDC min.
1000VDC min.
Isolation Resistance
10 MΩ min.
Isolation Capacitance
2500pF max.
Operating Frequency
270KHz typ.
Operating Temperature Range (Note 3)
-40ºC to +100ºC (base plate)
Over Temperature Protection
110°C
Storage Temperature Range
-55°C to +125°C
Humidity max., Non-condensing
95%
Thermal Shock
MIL-STD-810D
Vibration
10 ~ 55Hz 2G, 3minutes period, 30minutes analog
X, Y and Z
Humidity
Non Condensing
95% max.
Conducted Emissions
Radiated Emisssions
EN55022 (Note 4)
Level A
EN55022 (Note 4)
Level B
EN55022 (Note 4)
Level A
Continued on next page
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July-2006
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RP125-SB
Series
INNOLINE
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25°C)
ESD
EN61000-4-2
Perf. Criteria2
Radiated Immunity
EN61000-4-3
Perf. Criteria2
Fast Transient
EN61000-4-4
Perf. Criteria2
Surge
EN61000-4-5
Perf. Criteria2
Conducted Immunity
EN61000-4-6
Perf. Criteria2
Case Material
Open with Aluminium base plate
Weight
42g
3
MTBF Bellcore TR-NWT-000332, Tc=40°C, Io=80% max.
2500 x 10 hours
Characteristics
Efficiency Input Voltage
RP125-4805SB
Efficiency Output Current Iout
RP125-4805SB
95
94
95
93
92
85
90
80
75
90
89
Efficiency (%)
Efficiency (%)
91
88
87
70
36Vin
50
36
40
44
48
52
56 60
64
68
2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 25.0
72 75
Output Current, Iout (A)
Output Current, Iout (A)
Input With Heatsink (7G-0022)
RP125-4805SB
Input Without Heatsink
RP125-4805SB
1=200LFM, 2=300LFM, 3=400LFM, 4=500LFM
1=200LFM, 2=300LFM, 3=400LFM, 4=500LFM
120
120
1
100
2
3 4
100
80
1
2
3 4
80
Forced Convection
40
20
Output Power (%)
Output Power (%)
48Vin
60
55
86
85
60
75Vin
65
0
Forced Convection
40
20
0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100
Ambient Temperature Range (°C)
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Ambient Temperature Range (°C)
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207
RP125-SB
Series
INNOLINE
DC/DC-Converter
Package Style and Pinning (mm)
3rd angle
projection
36.83
57.90
Side View
12.70
5.08
50.8
3.55
3.55
1.57
4xM3 x 0.5 ( Note 6)
Pin Connections
Pin #
4
5
6
7
8
1
26.16
15.24
2
Bottom View
3
1.016
7.62
15.24
1
2
3
4
5
6
7
8
Function
–Vin
Remote ON/OFF
+Vin
–Vout
–Vsense
Trim
+Vsense
+Vout
XX.X ± 0.5 mm
XX.XX ± 0.25 mm
Pin pitch tolerance 0.35mm
5.33
5.33
47.24
External Output Trimming
Output can be externally trimmed by using the method
shown below.
Trim Resistor Calculation:
7
Trim Up
6
208
Trim Down
RD
RU
8
Rup (kΩ) = 5.1Vout (100+∆%) - 510 -10.2
1.225∆%
∆%
Rdn (kΩ) = 510 -10.2
∆%
7
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