POWER-ONE MBC250

MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
Features
•
•
•
•
•
Designed for Medical equipment (meet MOOP and MOPP)
High efficiency up to 90% at 230Vac full load
Universal AC input voltage range: 90-264 VAC
Active power factor correction
Over temperature, output over voltage, over current and short
circuit protection
• Input over voltage, under voltage protection
• Low conducted and radiated EMI (EN 55011 class A 6db margin)
• Safety approval to UL 60601-1 3rd,CSA60601-1 3rd and
IEC60950-1 3rd
• High power density design: 11.2 W/in3
• Compact size: 3.0 (W) x 1.5 (H) x 5.0 (L) inch
• ROHS compliant
Applications
• Medical, Telecom, Datacom, Industrial equipment
Description
This is a compact and efficient series of AC-DC power supplies suited for medical and many other applications. This family
meets the international information technology safety standards. Their high efficiency allows a very minimal power loss in end
equipment, resulting in higher reliability, ease of thermal management, and regulatory approvals for an environmentally friendly
end product. With approval to Means of Patient Protection (MOPP), the MBC250 is suitable for use in body floating (BF)
applications wherein equipment may come in direct contact with the patient, such as blood pressure monitors or ultrasound
equipment.
Content
1 ORDERING INFORMATION ............................................ 2
2 OVERVIEW ....................................................................... 2
3 ABSOLUTE MAXIMUM RATINGS ................................... 3
4 ENVIRONMENTAL AND MECHANICAL ......................... 3
5 INPUT SPECIFICATIONS ................................................ 3
5.1 INPUT FUSE ............................................................ 4
5.2 INRUSH CURRENT ................................................. 4
5.3 INPUT UNDER-VOLTAGE ....................................... 4
5.4 POWER FACTOR CORRECTION ........................... 4
5.5 EFFICIENCY ............................................................ 5
6 OUTPUT SPECIFICATIONS ............................................ 6
7 PROTECTION................................................................. 10
Rev. AA2, 26-Mar-2012
7.1 OVERVOLTAGE PROTECTION ............................10
7.2 CURRENT LIMITATION .........................................10
8 POWER GOOD SIGNAL ................................................11
9 ELECTROMAGNETIC COMPATIBILITY .......................11
9.1 IMMUNITY ..............................................................11
9.2 EMISSION ..............................................................11
10 SAFETY / APPROVALS ...............................................12
11 MECHANICAL ..............................................................13
11.1 DIMENSIONS .......................................................13
11.2 CONNECTIONS ...................................................15
Page 1 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
1 ORDERING INFORMATION
Product Family
Output Power
Dash
# Outputs
Standard: 0
S-Type: 1-9
Vo-Voltage
RoHS
compliant
MBC250-10XX
250W
-
1
0
12VDC / 24VDC / 48VDC
G
2 OVERVIEW
The MBC250-10XXG is a high efficiency and high power
density AC to DC power supply. It use single phase
transition mode PFC converter and well proven two-FET
forward converter with output diode rectifiers, providing
increased system reliability and high efficiency. With
around 1 m/s system air cooling, MBC250-1012G can
delivery up to 228W continuous output power and 252W for
MBC250-1024G and MBC250-1048G .
Figure 1: MBC250-10XXG block diagram
Rev. AA2, 26-Mar-2012
Page 2 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
3 ABSOLUTE MAXIMUM RATINGS
Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect long-term reliability,
and cause permanent damage to the supply.
Parameter
Conditions / Description
Min
Nom
Max
Unit
Continuous
264
VAC
Vi maxc Max continuous input
4 ENVIRONMENTAL AND MECHANICAL
Parameter
Ambient temperature
TA
TAext
TS
Extended temp range
Storage temperature
Dimensions
M
Conditions / Description
Vi min to Vi max, I1 nom,
Derated output
Non-operational
Width
Height
Depth
Min
-10
Nom
Max
+50
Unit
°C
+50
+70
°C
-40
+85
°C
mm
mm
mm
kg
Max
240
264
3.5
Unit
VAC
VAC
Arms
76.2
38.1
127.0
0.5
Weight
5 INPUT SPECIFICATIONS
General Condition: TA = -10… 50 °C unless otherwise noted.
Active fan air cooling required: 200 LFM (1 m/s)
Parameter
Vi nom Nominal input voltage
Input voltage ranges
Vi
Max input current
Ii max
Inrush current limitation
Ii p
Fi
PF
Vi on
Vi off
Input frequency
Power factor
Conditions / Description
Normal operating (Vi min to Vi max)
Turn-on input
Vi nom==264VAC, > 0.5 Io nom
Ramping up
Turn-off input
voltage1)
Efficiency
Thold
Hold-up Time
Li
Earth leakage current
Nom
Vi nom=115VAC, T= 25°C (see Figure 2)
Vi nom=230VAC, T= 25°C (see Figure 3)
voltage1)
η
Min
100
90
47
0.9
50/60
30
60
63
Ap
Hz
W/VA
82
89
VAC
Ramping down
78
85
VAC
Vi nom=230VAC, 0.5∙Io nom, Vo nom, TA = 25 °C
882)
Vi nom=230VAC, 1.0∙Io nom, Vo nom, TA = 25 °C
90
After last AC zero point, Vo within regulation,
Vi = 115 VAC, Po nom
264Vac at 60Hz
12
%
18
ms
300
uA
1) The power supply is provided with a minimum hysteresis of 2 V during turn-on and turn-off within the ranges.
2) For MBC250-1012G/1048G half load minimum efficiency is 87.5%.
Rev. AA2, 26-Mar-2012
Page 3 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
INPUT FUSE
Double fusing with 5A slow-blow type (5 × 20 mm), in series
with Live and neutral line inside of the power supply protects
against severe defects. The fuses and a VDR form together
with the input filter an effective protection against high input
transients.
5.1 INRUSH CURRENT
The AC-DC power supply exhibits an X-capacitance of only
2.0 μF, resulting in a low and short peak current, when the
supply is connected to the mains. The internal bulk
capacitor will be charged through an power resistor which
will limit the inrush current (see Figure 2 and 3).
Figure 3: Inrush current, Vin = 230VAC,Phase=90°
CH1: Vin (200V/div), CH2: Iin (10A/div)
Test data: the inrush current is 30A at 230VAC input.
Figure 2: Inrush current, Vin = 115VAC, Phase=90°
CH1: Vin (200V/div),
CH2: Iin (10A/div)
Test data: the inrush current is 13A at 115VAC input.
Rev. AA2, 26-Mar-2012
5.2 INPUT UNDER-VOLTAGE
If the sinusoidal input voltage stays below the input under
voltage lockout threshold Vi on, the supply will be inhibited.
Once the input voltage returns within the normal operating
range, the supply will return to normal operation again.
5.3 POWER FACTOR CORRECTION
Power factor correction (PFC) is achieved by controlling the
input current waveform synchronously with the input
voltage. A specified PFC controller is implemented in single
phase transition mode topology giving outstanding PFC
Page 4 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
losses. Synchronous rectifiers on the output reduce the
losses in the high current output path for MBC250-1012G .
5.4 EFFICIENCY
The high efficiency (see Figure 4, 5 and 6) is achieved by
using state-of-the-art silicon power devices in conjunction
with transition mode PFC topology minimizing switching
Schottky diode and ultra fast diode are used as rectifiers for
MBC250-1024G and MBC250-1048G separately due to the
high output voltage level.
92
89
86
83
80
77
74
71
68
65
Efficiency(%)
Efficiency (%)
results over a wide input voltage and load ranges. The input
current will follow the shape of the input voltage.
0
50
100
150
200
250
0
Po(W)
50
100
150
200
250
300
Po(W)
Figure 4: Efficiency vs. Output Power at 230VAC, MBC250-1012G
Efficiency(%)
92.00
89.00
86.00
83.00
80.00
77.00
74.00
71.00
68.00
65.00
Figure 5: Efficiency vs. Output Power at 230VAC, MBC250-1024G
92.00
89.00
86.00
83.00
80.00
77.00
74.00
71.00
68.00
65.00
0
50
100
150
200
250
300
Po(W)
Figure 6: Efficiency vs. Output Power at 230VAC, MBC250-1048G
Rev. AA2, 26-Mar-2012
Page 5 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
6 OUTPUT SPECIFICATIONS
General Condition: TA = -10 … +50 °C unless otherwise noted. Active fan air cooling required: 200 LFM (1 m/s)
Parameter
Main Output VO
Conditions / Description
Vo
Nominal output voltage
Vo set
Output
set
accuracy
Po nom
Io nom
Vo p-p
dVo Load
dVo Line
dVdyn
point
0.5 ∙IO, Tamb = 25 °C
Nominal output power
Nominal output current
Output ripple voltage
Recovery time
tdelay
Turn-on Delay
trise
Turn on Rise time
Capacitive loading
Rev. AA2, 26-Mar-2012
nom,
20 MHz
nom
Line regulation
Dynamic
regulation
Vo nom, Io
BW
Vi = Vi nom, 0 - 100 % Io
Load regulation
trec
CLoad
0.5 ∙IO, Tamb = 25 °C
Vi =Vi min…Vi max
load
ΔIo = 50% Io nom,
Io = 50 … 100% Io nom,
dIo/dt =1 A/μs, recovery
within 5% of Vo nom
Min
MBC250-1012G
MBC250-1024G
MBC250-1048G
Max
12.0
24.0
48.0
Unit
VDC
VDC
VDC
MBC250-1012G
-50
50
mV
MBC250-1024G
-75
75
mV
MBC250-1048G
-150
150
mV
MBC250-1012G
0
228
W
MBC250-1024G
0
252
W
MBC250-1048G
0
252
W
MBC250-1012G
0
19*
A
MBC250-1024G
0
10.5**
A
MBC250-1048G
0
5.25***
A
MBC250-1012G
60
120
mVpp
MBC250-1024G
80
240
mVpp
MBC250-1048G
150
480
mVpp
MBC250-1012G
-360
50
360
mV
MBC250-1024G
-720
80
720
mV
MBC250-1048G
-1440
130
1440
mV
MBC250-1012G
-120
80
120
mV
MBC250-1024G
-120
80
120
mV
MBC250-1048G
-120
80
120
mV
MBC250-1012G
-0.6
0.25
0.6
V
MBC250-1024G
-1.2
0.45
1.2
V
MBC250-1048G
-2.4
0.7
2.4
V
2
ms
1
2
Sec
10
20
ms
MBC250-1012G
4200
μF
MBC250-1024G
2300
μF
MBC250-1048G
1150
μF
Time required for output within regulation after intial
application of AC input @90 Vac
VO = 10…90% VO nom
Tamb = 25 °C
Nom
Page 6 / 15
0.3
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
* For convection cooling condition, the maximum output current is 10A for MBC250-1012G;
** For convection cooling condition, the maximum output current is 5A for MBC250-1024G;
*** For convection cooling condition, the maximum output current is 2A for MBC250-1048G.
CH1:Vo (10V/div)
CH2:Vin (200V/div)
CH1:Vo (10V/div)
CH2:Vin (200V/div)
Figure5:Turn on AC line 115VAC,full load (200ms/div)
Figure6:Turn on AC line 230VAC,full load (200ms/div)
CH1:Vo (10V/div)
CH1:Vo (10V/div)
CH2:Vin (200V/div)
Figure7:Turn off AC line at 115VAC,full load (20ms/div)
Rev. AA2, 26-Mar-2012
CH2:Vin (200V/div)
Figure8:Turn off AC line at 230VAC,full load (20ms/div)
Page 7 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
CH1:Vo (10V/div)
CH2:Vin (200V/div)
CH1:Vo (10V/div)
Figure 9: AC drop out 12ms at 115VAC (50 ms/div)
CH1:Vo (10V/div)
Figure 10: AC drop out 12ms at 230VAC (50 ms/div)
CH2:Vin (200V/div)
CH1:Vo (10V/div)
Figure 11: AC drop out [email protected] (50 ms/div) ,Vo restart.
Rev. AA2, 26-Mar-2012
CH2:Vin (200V/div)
CH2:Vin (200V/div)
Figure 12: AC drop out [email protected] (50 ms/div) ,Vo restart.
Page 8 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
CH1:Vo (10V/div)
Figure 13: Vo rise time at 115VAC (20 ms/div)
CH1:Vo (10V/div)
Figure 14: Vo rise time at 230VAC (20 ms/div)
CH1: Vo (200mV/div) CH2: I1 (5 A/div)
Figure 15: Load transient VO, 5.25A <-> 10.5A (0.5 ms/div), 2A/μs
CH1: Vo (200 mV/div) CH2: I1 (5 A/div)
Figure 16: Load transient V0, 5.25A <-> 10.5A (1 ms/div), 2A/μs
Rev. AA2, 26-Mar-2012
Page 9 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
7 PROTECTION
Parameter
Input fuses (L and N)
F
Vo ov
Conditions / Description
Not user accessible, time lag characteristic
Min
MBC250-1012G
MBC250-1024G
MBC250-1048G
MBC250-1012G
MBC250-1024G
MBC250-1048G
14.0
28.0
53
21
11.5
5.8
91
OV threshold
Io lim
Vi > 90 VAC, Ta < 50
°C
Current limit
Over temperature on heat
sinks
TSD
Automatic shut-down
Nom
5.0
Max
Unit
A
22.5
12.6
6.4
16.0
32.0
57
25
13.7
6.8
VDC
VDC
VDC
A
A
A
96
101
°C
7.1 OVERVOLTAGE PROTECTION
The AC-DC power supply provides a fixed threshold overvoltage (OV) protection implemented with a HW comparator. Once an
OV condition has been triggered, the supply will shut down and latch the fault condition. The latch can be unlocked by
disconnecting the supply from the AC mains only.
7.2 CURRENT LIMITATION
The main output current limitation will decrease with linear derating to 50% at 70 ºC if the ambient (inlet) temperature increases
beyond 50 °C (see Figure 17 ).
120
Io (%)
100
80
Series1
60
40
20
0
-10
0
10
20
30
40
50
60
70
Ambient Temperature(°C)
Figure 17: Output Current Limitation Curve
Rev. AA2, 26-Mar-2012
Page 10 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
8 POWER GOOD SIGNAL
The Out-OK output gives a status indication of the
converter and the output voltages. It can be used for
control functions such as data protection, central system
monitoring or as a part of a self-testing system.
Connecting the Out-OK as shown in Figure 18, VOK <1.0
V indicates that the output voltage(s) of the converter are
within the range.
Note: Using the potentiometer, the monitor level tracks the
programmed output voltage. In an error condition, if the
output voltage is out of range due to overload or an
external overvoltage, VOK will approach Vp. The output is
formed by an NPN transistor. The signal is isolated from
the output.
Figure 18: Power Good signal
9 ELECTROMAGNETIC COMPATIBILITY
9.1 IMMUNITY
Note: Most of the immunity requirements are derived from EN 61000-6-1:2007.
Test
ESD Contact Discharge
RF Susceptibility
Fast Transient/Burst
Surge
RF Conducted Immunity
Magnetic Fields
Voltage Dips and Interruptions
Standard / Description
EN 61000-4-2, Level 2
EN 61000-4-3, Level 3
EN 61000-4-4, Level 3
EN 61000-4-5, Class 3
EN 61000-4-6, Class 3
EN 61000-4-8
EN 61000-4-11
Criteria
A
A
B
B
A
A
C
9.2 EMISSION
Test
Conducted Emission
Radiated Emission
Harmonic Emissions
Voltage Fluctuation and Flicker
Rules for Unintentional Radiations
Rev. AA2, 26-Mar-2012
Standard / Description
EN55011: 0.15 … 30 MHz, QP and AVG,
single unit
EN55011 : 30 MHz … 1 GHz, QP,
single unit
IEC61000-3-2, Vin = 100 VAC/ 60 Hz, 100% Load
IEC61000-3-2, Vin = 240 VAC/ 50 Hz, 100% Load
EN61000-3-3
FCC Part 15, Sub Part-B
Page 11 / 15
Criteria
Class A
6 dB Margin
Class A
6 dB Margin
Class A
Class A
PASS
PASS
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
10 SAFETY / APPROVALS
Maximum electric strength testing is performed in the factory according to IEC 60950-1, Input-to-output electric strength tests
should not be repeated in the field. Power-One will not honor any warranty claims resulting from electric strength field tests.
Parameter
Agency Approvals
dC
Description / Conditions
UL60601-1 3rd
CSA60601-1 3rd
IEC 60950-1 3rd
Nom
Max
Unit
Approved by
independent body
(see CE Declaration)
Input / Case
Insulation Safety Rating Input / Output
Output / Case
Primary (L/N) to protective earth (PE)
Creepage / clearance
Primary to secondary
Input to case
Electrical strength test Input to output
Output and Signals to case
Rev. AA2, 26-Mar-2012
Min
Page 12 / 15
Basic
Reinforced
Basic
According to
safety standard
2.3
4.0
1.5
mm
mm
KVDC
KVAC
kVAC
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
11 MECHANICAL
11.1 DIMENSIONS
19.05
2x
Air Flow Direction
M3x0.5P Thread Hole
for customer system mounting;
Mounting scerw insert into
PSU chassis 5.0mm Max.
(2holes on each side)
115
Figure 19: Side view 1
127 ±0.5
Note: A 3D step file of the power
supply casing is available on request.
J2
Outside Row
J1-5
J1
J3
J3-1
J1-1
Air Flow Direction
Figure 20: Top view
115
SN Label
19.05
2x
I/O label
Figure 21: Side view 2
Rev. AA2, 26-Mar-2012
Page 13 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
Section A-A
A
62.87
Customer side mounting scerw insert
into PSU chassis 5.0mm Max.
M3x0.5P Thread Hole
for customer system mouting
(4places on bottom side)
118.75
A
Figure 22: Bottom view 2
76.2 ±0.5
38.1 ±0.5
Figure 23: Front view
Rev. AA2, 26-Mar-2012
Page 14 / 15
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MBC250-10XXG Data Sheet
12VDC, 24 VDC, 48VDC
11.2 CONNECTIONS
Copyright © 2010 Power-One Inc. All rights reserved. Words and logos that are identified as trademarks and/or service marks are, unless noted otherwise, the trademarks
and service marks of Power-One Inc. in the U.S. and other countries. All other product or service names are the property of their respective holders. Power-One products
are protected under numerous U.S. and foreign patents and pending applications, maskwork rights, and copyrights. Power-One reserves the right to make changes to any
products and services at any time without notice. Power-One assumes no responsibility or liability arising out of the application or use of any information, product, or service
described herein except as expressly agreed to in writing by Power-One Inc.
1. NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical components in life support
systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional president of Power-One,
Inc.
2. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured.
Specifications are subject to change without notice.
Rev. AA2, 26-Mar-2012
Page 15 / 15
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