URF1D_HB-150W (H) series is a high performance product designed for the field of railway applications. Output power up to 150W, no min
load requirement, wide input voltage 50-160VDC, which allows the base plate operating temperature up to 100℃. Further product feathers
include input under-voltage protection, output over-voltage protection, short circuit protection, over current protection, over temperature
protection, remote control and compensated, output voltage regulation functions. Meets the EN50155 railway standard. Widely used in the
railway system and associated equipment.
Selection Guide
Input Voltage (VDC)
Input Voltage (VDC)
*
Part No.
URF1D24HB-150W
Nominal
(Range)
(66-160)
Max.
Output
Voltage(VDC)
24
Output Current
(mA)(Max./Min.)
6250/0
5000/0
6250/0
5000/0
Efficiency (%, Min./Typ)
@ Full Load
89/91
89/91
Max. Capacitive
Load(µF)
4400
4400
110
URF1D24HB-150WH
(50-66)
(66-160)
(50-66)
170
24
Note: *Exceeding the maximum input voltage may cause permanent damage.
Input Specifications
Item
Input Current (full load / no-load)
Reflected Ripple Current
Input impulse Voltage (1sec. max.)
Starting Voltage
Under-voltage Shutdown Voltage
Start-up Time
Input Filter
Module switch on
Ctrl*
Hot Plug
Note: * the voltage of Ctrl pin is relative to input pin -Vin.
Operating Conditions
Nominal input
Nominal input
Min.
--
--
-0.7
--
35
--
Typ.
1495/3
80
--
47
43
25
Pi filter
Max.
1532/10
--
180
50
50
--
Unit
mA
VDC
mS
Ctrl psuspended or connected to TTL high level (3.5-12VDC)
Ctrl connected to -Vin or low level (0-1.2VDC)
--
2
Unavailable
5
mA
Module switch off
Input current when switched off
Output Specifications
Item
Output Voltage Accuracy
Line Regulation
Load Regulation
Transient Recovery Time
Transient Response Deviation
Temperature Coefficient
Operating Conditions
Nominal input,10%-100% load
Full load, the input voltage is from low to high
Nominal input,10%-100% load
25% load step change
Full load
Min.
--
--
--
--
--
--
Typ.
--
--
--
300
±3
--
Max.
±3
±0.3
±0.5
500
±5
±0.03
µs
%Vo
%/℃
%
Unit
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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
DC/DC Converter
URF1D_HB-150W Series
Ripple & Noise *
Trim
Output voltage remote
compensation(Sense)
Over-voltage Protection
Over-current Protection
Short circuit Protection
Input voltage range
Nominal input
20MHz bandwidth (with 10%-100% load)
--
95
--
110
110
60
--
--
--
130
120
110
105
140
180
Continuous
%Vo
%Vo
%Io
mVp-p
Note: * The measuring method of ripple and noise, please refer to Fig. 2.
General Specifications
Item
Isolation
Voltage
Input-output
Input-aluminum case
Output-aluminum case
Operating Conditions
Input-output, with the test time of 1 minute
and the leak current less than 1mA
Input-output, insulation voltage 500VDC
Input-output, 100KHz/0.1V
See Temperature Derating Curve Fig. 1
Within the operating temperature curve
Base- Plate Temperature
Welding spot is 1.5mm away from the casing,
10 seconds
Non-condensing
Natural convection
URF1D24HB-150W
Thermal
Resistance
URF1D24HB-150WH
200LFM convection
400LFM convection
1000LFM convection
Natural convection
200LFM convection
400LFM convection
1000LFM convection
Switching Frequency
MTBF
Cooling Test
Dry Heat
Damp heat
Shock and Vibration Test
PWM mode
MIL-HDBK-217F@ (Case Tb=70℃, GB)
Min.
3000
1500
1000
1000
--
-40
-40
-55
100
--
5
7.8
4.44
3.39
2.52
3.7
2.2
1.76
1.28
--
500
EN60068-2-1
EN60068-2-2
EN60068-2-30
IEC/EN61373
Typ.
--
--
--
--
2500
--
--
--
--
--
--
--
--
--
--
--
--
--
--
160
--
Max.
--
--
--
--
--
100
100
125
120
300
95
--
--
--
--
--
--
--
--
--
--
KHz
K hours
℃/W
%RH
℃
MΩ
pF
VDC
Unit
Isolation Resistance
Isolation Capacitance
Operating Temperature
Base- Plate Temperature
Storage Temperature
Over-temperature Protection
Pin Welding Resistance Temperature
Storage Humidity
Physical Specifications
Casing Material
Weight
URF1D24HB-150W
URF1D24HB-150WH
Black flame-retardant and heat-resistant plastic (UL94-V0)
70g (Typ.)
120g (Typ.)
Natural convection or Forced convection
Cooling method
EMC Specifications
EMI
CE
ESD
EMS
RS
CISPR22/EN55022
IEC/EN61000-4-2
GB/T17626.2
IEC/EN61000-4-3
GB/T17626.3
Class B (see Fig.4)
Contact ±6KV, Air ±8KV
10V/m
perf.Criteria B
perf.Criteria A
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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
DC/DC Converter
URF1D_HB-150W Series
CS
EFT
EMS
Surge
Immunities of short
interruption
IEC/EN61000-4-6
GB/T17626.6
IEC/EN61000-4-4
GB/T17626.4
IEC/EN61000-4-5
GB/T17626.5
EN50155
10Vr.m.s
±2KV(5KHz/100KHz) (see Fig. 4 for recommended circuit)
±2KV(1.2μs/50μs 2Ω) (see Fig. 4 for recommended circuit)
perf.Criteria A
perf.Criteria B
perf.Criteria B
100%—0%, 10ms
perf.Criteria B
Efficiency Curves
Temperature Derating Curve
Fig. 1
Sense of application and precautions
1. When Remote Sense is not used
+Vo
sens e+
Trim
sens e-
0V
+
C
Load
The le ad as s ho rt as po ss ible
Short at pin root
Notes：
1.
2.
When remote sense is not used, make sure + Vo and Sense + are shorted, and that 0V and Sense- are shorted as well;
Keep the patterns between + Vo and Sense + and 0V and Sense- as short as possible. Avoid a looping pattern. If noise enters the loop, the operation of the
power module will become unstable.
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DC/DC Converter
URF1D_HB-150W Series
2. When Remote Sense is used
A s far as po s sibl e u sin g t he twis te d pair
+Vo
sens e+
Trim
sens e-
0V
Notes:
1.
2.
3.
4.
+
C
Load
Using remote sense with long wires may cause output voltage to become unstable. Consult us if long sensing wiring is necessary.
Sense patterns or wires should be as short as possible. If wires are used, use either twisted-pair or shielded wires.
Please Use wide PCB trace or a thick wires between the power supply module and the load, the line voltage drop should be kept less than 0.3V. Make sure
the power supply module's output voltage remains within the specified range.
The impedance of wires may cause the output the voltage oscillation or have a greater ripple, please do adequate assessments before using.
Design Reference
1. Ripple & noise
Fig. 2
Note: Capacitive value C1:1µF/50V; C2:10µF/35V.
2. Test recommended circuit
All the series’ general specifications have been tested according to the following recommended test circuit before leaving the factory
(see Fig. 3).
Cop per sheet
C0
DC
Input
+Vin
Ctrl
+Vo
sense+
Trim
sense-
0V
C1
C2
1 00 uF
Case
1 uF
Load
1 0u F
-Vin
Fig. 3
3. Typical application
If it is required to further reduce input and output ripple, properly increase the input & output of additional capacitors Cin and Cout or
select capacitors of low equivalent impedance provided that the capacitance is no larger than the max. capacitive load of the
product.
Capacitive
Parameter
Output Voltage
0V
+Vin
Cin
+Vo
Cout(µF)
220
Cin(µF)
100
DC
DC
Cout
-Vin
24V
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DC/DC Converter
URF1D_HB-150W Series
4. EMC solution-module recommended circuit
C Y1
LDM 1
LCM1
+Vin
+
+
+
+Vin
FU SE
+Vo
+
DC/DC
-Vin
LOAD
-Vin
M OV1 C0
C1
C3 C4 C5
C6
C7 C2
0V C8
CY2
Fig. 4
Element model
FUSE
MOV1
C0
C1/C2
C3/C4/C5/C6/C7
C8
CY1
CY2
LDM1
LCM1
Recommended value
Choose according to actual input current
S20K130 (Varistor)
220uF/400V (electrolytic capacitor)
100uF/400V (electrolytic capacitor)
2.2uF/250V
220 uF/50V(electrolytic capacitor)
2200pF/400VAC (Y Safety capacitor)
3300pF/200VAC (Y Safety capacitor)
10uH (Shielded inductor)
1.0mH, recommended to use MORNSUN’s FL2D-30-102
EMC solution-recommended circuit PCB layout
5. Thermal design
The maximum operating temperature of base- plate TB is 100
℃,
as long as the user's thermal system keeps TB <100
℃,
the converter
can deliver its full rated power. A power derating curve can be calculated for any heatsink that is attached to the base-plate of the
converter. It is only necessary to determine the thermal resistance, Rth(B-A), of the chosen heatsink between the base-plate and the
ambient air for a given airflow rate. This information is usually available from the heatsink vendor. The following formula can the be used to
determine the maximum power the converter can dissipate for a given thermal condition if its base-plate is to be no higher than 100 ºC.
max
P
diss
½
100
℃
T
A
R
th
（
B - A
）
(T
A
is ambient temperature)
The maximum load operating power of power supply module at a certain ambient temperature can be calculated by the power
dissipation, Formula is as follows:
max
P
diss
Po
max
½
1
(
1)
(
is converter efficiency)
Therefore, customers can according to the actual application to choose the right heatsink.
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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
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