Murata GRM31CR71E106KA12 240w poe regulated converter Datasheet

SPC-54/4.4-L12PG-C
www.murata-ps.com
240W PoE+ Regulated Converter
11-13.2Vin, 54.2V/4.44A Single Output, High Efficiency SIP Converter
ORDERING GUIDE SUMMARY
Model
Vout Range
Iout Range
Vin Range
Ripple/Noise
Efficiency
54.2V
0-4.44A
11-13.2V
500mVp-p (max)
94%
SPC-54/4.4-L12PG-C
INPUT CHARACTERISTICS
Parameter
Typ. @ 25°C, full load
Notes
11-13.2 Volts
12V nominal
24.5 Amps
Vin = 11V
Voltage Range
Current, full power
Typical unit
Turn On/Start-up Threshold
Undervoltage Shutdown
No Load Current
FEATURES
10.3-11 Volts
Vin increasing
9-9.9 Volts
Vin decreasing
300mA
Vin = 12V
OUTPUT CHARACTERISTICS

240 Watts total output power
Parameter
Typ. @ 25°C, full load
Notes

94% Ultra-high efficiency @ full load, 100LFM
Voltage
54.2 Volts
±1%

12V Input (11-13.2V range)
Current
0 to 4.44 Amps
No minimum load

54.2V/4.44A Output for PoE+
(Power-over-Ethernet)

Input Over/Under Voltage Shutdown
Power Output
240 Watts
Ripple & Noise
500mVp-p

320kHz fixed switching frequency
Line and Load Regulation
±1%/±1%
Overcurrent Protection
5.33 Amps

Fully isolated, 2250V (BASIC)

Low 500mVp-p ripple/noise max value.

PGOOD signal
Overtemperature Protection
130 °C
Efficiency (minimum)
92.8%
Efficiency (typical)

Stable no-load operation
20MHz bandwidth, 100μF output
capacitance
With hiccup auto-restart
80% load, Vin nom.
94%
GENERAL SPECIFICATIONS

Thermal shutdown
Parameter

Fully I/O protected
Dynamic Load Response

UL 1950/IEC/EN60950 certification
Operating Ambient Temperature

Output over voltage latch
Safety Features
Typ. @ 25°C, full load
Notes
500μsec
50-75-50% step to 1% of Vout
–40 to +80°C
UL 1950, IEC/EN60950
PHYSICAL SPECIFICATIONS
Parameter
Inches
Millimeters
Dimensions
2.60 x 0.69 x 1.25
66.0 x 17.5 x 31.75
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE
Output
Model 
SPC-54/4.4-L12PG-C
Input
VOUT
(Volts)
IOUT
(Amps,
Max.)
Power
R/N (mV pk-pk)
(Watts)
Max.
Line
Load
54.2
4.44
240
500
±1%
±1%
Regulation (Max.)
Efficiency
80% load,
Vin nom.
VIN Nom.
(Volts)
Range
(Volts)
IIN, no
load
(mA)
Vin @ min,
full load
(Amps)
% Min.
% Typ.
12
11-13.2
300
24.5
92.8
94
Package
(Pinout)
See mechanical
drawing
For full details go to
www.murata-ps.com/rohs
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MDC_SPC-54/4.4-L12PG-C.A03 Page 1 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
FUNCTIONAL SPECIFICATIONS ➀ ➁
ABSOLUTE MAXIMUM RATINGS
Input Voltage, Continuous
Isolation Voltage
Input Reverse Polarity
On/Off Remote Control
Output Power
Conditions
Full power operation
Input to output tested 100 mS
None, install external fuse
Power on or off, referred to -Vin
Minimum
0
Typical/Nominal
Maximum
13.2
2250
None
0
0
5
240
Units
Vdc
Vdc
Vdc
Vdc
W
Current-limited, no damage,
0
4.44
A
short-circuit protected
Storage Temperature Range
Vin = Zero (no power)
-55
125
˚C
Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those
listed in the Performance/Functional Specifications Table is not implied nor recommended.
INPUT
Operating voltage range
11
12
13.2
Vdc
Input Voltage Slew Rate
1
V/μs
Turn On/Start-up threshold
Rising input voltage
10.3
11
Vdc
Turn Off/Undervoltage lockout
Falling input voltage
9.2
9.9
Vdc
Hysteresis
1
4
Vdc
Overvoltage Shutdown
13.8
14.8
Vdc
Reverse Polarity Protection
None, install external fuse
None
Vdc
Internal Filter Type
Pi
Input current
Full Load Conditions
Vin = nominal
22.5
A
Low Line
Vin = minimum
24.5
A
Inrush Transient
Peak Current
30
A
I²t
0.1
A2/sec
No Load Input Current
Iout = minimum, unit = ON
300
500
mA
Shut-Down Mode Input Current
10
mA
The external input capacitance shall be the max
Reflected (back) ripple current
0.1
Arms
capacitance
Back Ripple Current
no filtering
2
Arms
250
750
μF
Input Capacitance ➂
GENERAL and SAFETY
80% of Irated ≤ Iout ≤ 100% of Irated
92.8
94
%
Efficiency (Ta = 25°C, 100 LFM, airflow
50% of Irated ≤ Iout < 80% of Irated
91.8
93.5
%
across long axis, Vin = 12V)
20% of Irated
86.8
88.5
%
80% of Irated ≤ Iout ≤ 100% of Irated
92.8
94
%
Efficiency (Ta = 80°C, 250 LFM, airflow
50% of Irated ≤ Iout < 80% of Irated
91.8
93.5
%
across long axis, Vin = 12V)
20% of Irated
86.8
88.5
%
Isolation
Isolation Voltage
Input to output, continuous
2250
Vdc
Insulation Safety Rating
basic
Isolation Resistance
10
MΩ
Isolation Capacitance
3300
pF
Certified to UL-60950-1, CSA-C22.2 No.60950-1,
Safety
Yes
IEC/EN60950-1, 2nd edition
Per Telcordia SR332, issue 1 class 3, ground
Calculated MTBF
1
Hours x 106
fixed, Tambient = +25˚C
Service Life at 40°C ambient temperature
10
years
with 80% load
ESD
Human Body Model (HBM)
± 2000
V
Charged Device Model (CDM)
± 500
V
Machine Model (MM)
± 200
V
Output Current
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MDC_SPC-54/4.4-L12PG-C.A03 Page 2 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
FUNCTIONAL SPECIFICATIONS (CONT.)
DYNAMIC CHARACTERISTICS
Fixed Switching Frequency
Startup Time
Startup Time
Turn-On/Turn-Off
Turn-On Delay ➃
Output Voltage Rise Time ➄
Pre-Bias Voltage ➅
Turn-On Overshoot ➆
Turn-Off Undershoot ➇
Dynamic Load Response
Dynamic Load Peak Deviation
FEATURES and OPTIONS
Remote On/Off Control
Enable Logic, ON state
Enable Logic, OFF state
Control Pin Shutdown Current
OUTPUT
Total Output Power
Voltage
Nominal Output Voltage
Setting Accuracy
Current
Output Current Range
Minimum Load
Current Limit Inception
Short Circuit
Short Circuit Duration
(remove short for recovery)
Short circuit protection method
Regulation
Line Regulation
Load Regulation
Ripple and Noise
Temperature Coefficient
Maximum Capacitive Loading
Power Good Signal Characteristics ➈ ➉
Output Voltage for PGOOD triggering
Power Good High State Voltage
Power Good High State Current (into Pin)
Power Good low State Voltage
Power Good low State Current (into Pin)
MECHANICAL
Outline Dimensions
Conditions
Vin On to Vout regulated (100% resistive load)
Remote ON to 10% Vout (50% resistive load)
30
30
Units
KHz
mS
mS
1A/μS, 25% of full load change
1A/μS, 25% of full load change
30
80
100
2
0
800
±1000
mS
mS
%
%
%
μSec
mV
5
0.8
0.5
V
V
mA
Pin open = OFF
Vin = 12V; Iout = 2.22A
98% of Vnom., after warmup
Typical/Nominal
320
500
2
0
See Derating
Maximum
240
W
53.658
-1
54.2
54.742
1
Vdc
% of Vnom.
0
4.44
No minimum load
4.44
A
6.2
A
±1
±1
%
%
4.88
Output shorted to ground, no damage
Hiccup
Current limiting
Vin = min. to max. Vout = nom.
Iout = min. to max. Vin = nom.
20 MHz BW, with 0.1μF and 1μF ceramic capacitors, and 100μF output capacitance
At all outputs
Full resistive load
Weight
Through Hole Pin Diameter
Through Hole Pin Material
TH Pin Plating Metal and Thickness
Minimum
Nickel subplate
Tin overplate
500
mV pk-pk
0
1620
% of Vnom./°C
μF
50
55
5
10
0.8
2.5
V
V
μA
V
mA
±0.02
2.60x 0.69 x 1.25
66x 17.5 x 31.75
2.2
62
0.025*0.025
0.64*0.64
Copper alloy
3-7.6
2.54-7.6
Inches
mm
Ounces
Grams
Inches
mm
μm
μm
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MDC_SPC-54/4.4-L12PG-C.A03 Page 3 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
FUNCTIONAL SPECIFICATIONS (CONT.)
ENVIRONMENTAL
Operating Ambient Temperature Range
No Derating, Full Power, 100 LFM, Vertical mount
Storage Temperature
Vin = Zero (no power)
Thermal Protection/Shutdown
Available ariflow
Io = 4.44A, Ta = 25°C
Electromagnetic Interference (EMI)
External filter required
Conducted, EN55022/CISPR22
Radiated, EN55022/CISPR22
Relative humidity, Operating, non-condensing
Relative humidity, Non-Operating, noncondensing
Altitude (without output derating at 70°C)
RoHS rating
Notes
➀
➁
➂
➃
Typical at TA = +25°C under nominal line voltage and nominal-load conditions, unless noted.
Devices have no minimum-load requirements and will regulate under no-load conditions.
External capacitance could be all ceramic or a mix of electrolytic and ceramic.
a) Period between Vin connection and Vout rising to 10% of final value when Enable signal is existing, or b) Period between Enable signal connection and Vout rising to 10% of final value when Vin
is existing.
➄ The output rise time measured from 10% of Vnom to the lower limit of the regulation band with
0% to 100% load and external cap.
-40
-55
80
125
130
100
°C
°C
°C
LFM
B
Class
B
Class
%
10
90
5
95
%
4000
10,000
feet
RoHS-6
➅
➆
➇
➈
The Power supply will start up normally and without any demage under a pre-bias output voltage.
Tested under all loading conditions.
Tested under all loading conditions.
Pgood is referenced to Vin(-). An external pull-up resistor is connected between PGOOD pin and a
bias voltage. A high signal shown in the pin represents the good status of the output voltage.
➉ Tested under full operating temperature and input voltage ranges.
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MDC_SPC-54/4.4-L12PG-C.A03 Page 4 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
PERFORMANCE DATA AND OSCILLOGRAMS
Efficiency vs. Line Voltage and Load Current @ Ta = +25°C
100
95
90
VIN = 11V
Efficiency (%)
VIN = 12V
85
VIN = 13.2V
80
75
70
Load Current (A)
Vin Startup Delay, Vin = 12V, Iout = 4.44A, Channel #3 = 5V/div - Vin,
Channel #4 = 20V/div - Vout, Ta = 25°C, Cload = 100μF
Vin Startup Delay, Vin = 12V, Iout = 0A, Channel #3 = 5V/div - Vin,
Channel #4 = 20V/div - Vout, Ta = 25°C, Cload = 100μF
Vin Startup Delay, Vin = 12V, Iout = 4.44A, Channel #3 = 5V/div - Vin,
Channel #4 = 20V/div - Vout, Ta = 25°C, Cload = 1620μF
Vin Startup Delay, Vin = 12V, Iout = 0A, Channel #3 = 5V/div - Vin,
Channel #4 = 20V/div - Vout, Ta = 25°C, Cload = 1620μF
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MDC_SPC-54/4.4-L12PG-C.A03 Page 5 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
PERFORMANCE DATA AND OSCILLOGRAMS
Output Ripple & Noise, Vin = 12V, Iout = 4.44A, Ta = 25°C, Cload = 100μf, BW = 20Mhz
Output Ripple & Noise, Vin = 12V, Iout = 0A, Ta = 25°C, Cload = 100μf, BW = 20Mhz
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MDC_SPC-54/4.4-L12PG-C.A03 Page 6 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
PERFORMANCE DATA AND OSCILLOGRAMS
Maximum Current Temperature Derating
(Vin = 11V, airflow from Vout to Vin)
Maximum Current Temperature Derating
(Vin = 11V, airflow from Vin to Vout)
5
5
4
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
2.5 m/s (500 LFM)
3.0 m/s (600 LFM)
3
Output Current (Amps)
Output Current (Amps)
4
2
1
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
2.5 m/s (500 LFM)
3.0 m/s (600 LFM)
3
2
1
0
0
30
35
40
45
50
55
60
65
70
75
80
85
30
35
40
45
Ambient Temperature (°C)
50
55
60
65
70
75
80
85
75
80
85
75
80
85
Ambient Temperature (°C)
Maximum Current Temperature Derating
(Vin = 12V, airflow from Vout to Vin)
Maximum Current Temperature Derating
(Vin = 12V, airflow from Vin to Vout)
5
5
4
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
2.5 m/s (500 LFM)
3.0 m/s (600 LFM)
3
Output Current (Amps)
Output Current (Amps)
4
2
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
2.5 m/s (500 LFM)
3.0 m/s (600 LFM)
3
2
1
0
30
35
40
45
50
55
60
65
70
75
80
1
85
30
35
40
45
Ambient Temperature (°C)
5
4
4
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
2.5 m/s (500 LFM)
3.0 m/s (600 LFM)
Output Current (Amps)
Output Current (Amps)
60
65
70
Maximum Current Temperature Derating
(Vin = 13.2V, airflow from Vout to Vin)
5
2
55
Ambient Temperature (°C)
Maximum Current Temperature Derating
(Vin = 13.2V, airflow from Vin to Vout)
3
50
1
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
2.5 m/s (500 LFM)
3.0 m/s (600 LFM)
3
2
1
0
0
30
35
40
45
50
55
60
65
Ambient Temperature (°C)
70
75
80
85
30
35
40
45
50
55
60
65
70
Ambient Temperature (°C)
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MDC_SPC-54/4.4-L12PG-C.A03 Page 7 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
MECHANICAL SPECIFICATIONS
0.110 (2.79)
Inches (mm)
0.055
(1.39) 0.270
(6.86)
0.100
(2.54)
1.300 (33.02)
2.49 (63.2)
2.6 (66.0)
0.350 0.300
(8.89) (7.62)
0.100
(2.54)
PIN 14
PIN 15
INPUT/OUTPUT CONNECTIONS
Pin
Function
0.35
(8.89)
0.69
(17.53)
0.05
(1.27)
0.205
(5.21)
PIN 18
8PL
TYP 1
PIN 1
0.070 (1.78)
0.205 (5.21)
0.350
18x
0.045 (1.14) (8.89)
2.49 (63.2)
2.64 (67.06)
0.270
(6.86)
0.075
(1.91)
Dimensions are in inches (mm shown for ref. only).
Third Angle Projection
0.050 (1.27)
0.025 (0.64)
0.045
Recommended Footprint
PIN 19
0.115 ±0.010
(2.92±0.254)
1.25
(31.8)
0.69 (17.53) Max
0.354 (8.99) Max
PIN 20
2x
0.125
(3.18)
1
THOT1_MCU(+)
2
THOT2_MCU(-)
3
PGOOD
4
Enable
5
Vin(-)
6
Vin(-)
7
Vin(-)
8
Vin(-)
9
Vin(-)
10
Vin(+)
11
Vin(+)
12
Vin(+)
13
Vin(+)
14
Vin(+)
15
-54VOut
16
-54VOut
17
-54V RTN
18
-54V RTN
19
SUPPORT#1
20
SUPPORT#2
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
Components are shown for reference only.
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MDC_SPC-54/4.4-L12PG-C.A03 Page 8 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
SHIPPING TRAYS AND BOXES
PS
Solu
tion
OBSE
s
ATTE
NT
RVE
PREC
SEN ELECTR AUTIONS
SIT
IVEDEVOSTATICFOR HAND
ING
ICE
S
ION
Two boxes per carton, each containing 4 trays with 10 pcs per tray
MOQ = 80 pcs
50
(3
8
13
)
20
(3
.7
.6
)
12
Dimensions are in inches (mm shown for ref. only).
Third Angle Projection
11.42 (290)
10.
8)
16
10.
94
(25
(27
8)
Components are shown for reference only.
m
Mu
uR
rata
a
at
Pow
e
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
PS
r So
lutio
ns
NSI
R
ON
SE
TI
FO C
NS
TI ES
TIO TA
C
AU
OS I
TR DEV
EC VE
EL TI
EC
PR
EN
E
RV
SE
OB
T
AT
G
IN
ND
HA
4.33
(110)
Inches (mm)
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MDC_SPC-54/4.4-L12PG-C.A03 Page 9 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
Technical Notes
I/O Filtering and Noise Reduction
The SPC is tested and specified with external output capacitors. These
capacitors are necessary to accommodate our test equipment and may not
be required to achieve desired performance in your application. The SPC is
designed with high-quality, high-performance internal I/O caps, and will operate within spec in most applications with no additional external components.
In particular, the SPC input capacitors are specified for low ESR and are fully
rated to handle the units' input ripple currents. Similarly, the internal output
capacitors are specified for low ESR and full-range frequency response.
In critical applications, input/output ripple/noise may be further reduced using
filtering techniques, the simplest being the installation of external I/O caps.
External input capacitors serve primarily as energy-storage devices. They
minimize high-frequency variations in input voltage (usually caused by IR
drops in conductors leading to the DC/DC) as the switching converter draws
pulses of current. Input capacitors should be selected for bulk capacitance
(at appropriate frequencies), low ESR, and high rms-ripple-current ratings.
The switching nature of modern DC/DC's requires that the dc input voltage
source have low ac impedance at the frequencies of interest. Highly inductive
source impedances can greatly affect system stability. Your specific system
configuration may necessitate additional considerations.
Input Fusing
Most applications and or safety agencies require the installation of fuses at
the inputs of power conversion components. The SPC Series may have an
optional input fuse. Therefore, if input fusing is mandatory, either a normalblow or a fast-blow fuse with a value no greater than twice the maximum
input current should be installed within the ungrounded input path to the
converter.
Input Overvoltage and Reverse-Polarity Protection
The SPC does not incorporate input reverse-polarity protection. Input voltages
in excess of the specified absolute maximum ratings and input polarity reversals of longer than "instantaneous" duration can cause permanent damage to
these devices.
Start-Up Time
The VIN to VOUT Start-Up Time is the interval between the time at which a rising
input voltage crosses the lower limit of the specified input voltage range
TO
OSCILLOSCOPE
CURRENT
PROBE
VIN
LBUS
CBUS
The On/Off to VOUT Start-Up Time assumes the converter is turned off via the
On/Off Control with the nominal input voltage already applied to the converter.
The specification defines the interval between the time at which the converter
is turned on and the fully loaded output voltage enters and remains within its
specified regulation band.
Thermal Considerations and Thermal Protection
The typical output-current thermal-derating curves shown below enable
designers to determine how much current they can reliably derive from each
model of the SPC under known ambient-temperature and air-flow conditions.
Similarly, the curves indicate how much air flow is required to reliably deliver
a specific output current at known temperatures.
The highest temperatures in SPC's occur at their output inductor, whose heat
is generated primarily by I 2 R losses. The derating curves were developed
using thermocouples to monitor the inductor temperature and varying the load
to keep that temperature below +110°C under the assorted conditions of air
flow and air temperature. Once the temperature exceeds +125°C (approx.),
the thermal protection will disable the converter using the hiccup shutdown
mode.
Undervoltage Shutdown
When the input voltage falls below the undervoltage threshold, the converter
will terminate its output. However, this is not a latching shutdown mode. As
soon as the input voltage rises above the Start-Up Threshold, the converter
will restore normal operation. This small amount of hysteresis prevents most
uncommanded power cycling. Since some input sources with higher output
impedance will increase their output voltage greater than this hysteresis as
soon as the load is removed, it is possible for this undervoltage shutdown to
cycle indefinitely. To prevent this, be sure that the input supply always has
adequate voltage at full load.
Thermal Shutdown
Extended operation at excessive temperature will initiate overtemperature
shutdown triggered by a temperature sensor inside the PWM controller. This
operates similarly to overcurrent and short circuit mode. The inception point of
the overtemperature condition depends on the average power delivered, the
ambient temperature and the extent of forced cooling airflow.
Remote On/Off Control
+INPUT
+
and the fully loaded output voltage enters and remains within its specified
regulation band. Actual measured times will vary with input source impedance, external input capacitance, and the slew rate and final value of the input
voltage as it appears to the converter.
CIN
The SPC may be turned off or on using the external remote on/off control. This
terminal consists of a digital input to the internal PWM controller through a
protective resistor and diode.
–
COMMON
CIN = 33µF, ESR < 700m7 @ 100kHz
CBUS = 220µF, ESR < 100m7 @ 100kHz
LBUS = 12µH
The on/off input circuit should be CMOS logic referred to the –Input power
terminal however TTL or TTL-LS logic will also work or a switch to ground. If
preferred, you can even run this using a bipolar transistor in “open collector”
configuration or an “open drain” FET transistor.
Figure 1. Measuring Input Ripple Current
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MDC_SPC-54/4.4-L12PG-C.A03 Page 10 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
Power Good
Hottest Component Temperature Indicating Signal
The power supply shall provide an open-drain/open-collector type circuit
representing that the output voltage is within the required voltage band. An
external pull-up resistor will be placed between the PGOOD pin and a bias
voltage. The signal is referenced to the Vin(-). The signal shall go to the high
state when output voltage reaches a typical value, and returns to the low
state when the output voltage falls below 50V.
The following schematic shall be implemented close to the hottest component. A signal type NPN transistor such as MMBT3904LT1, or a compatible
part is recommended: The base-emitter voltage will change with a negative
thermal coefficient over the temperature. The circuit connected to this device
is referenced to the Vin(-).
Vx
3.3 V ≤ Vx ≤ 5.0 V
2.0 kΩ ≤ R≤10.0 kΩ
R
Thot_MCU(+)
I
+
IBC
Thot_MCU(‐)
V PGOOD
Figure 3. Temperature sensing circuit
Figure 2. External circuit configuration for PGOOD signal
Soldering Guidelines
Murata Power Solutions recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding these specifications may cause damage to the product. Be cautious when there is high atmospheric humidity. We strongly recommend a mild pre-bake (100° C. for 30 minutes). Your production
environment may differ; therefore please thoroughly review these guidelines with your process engineers.
Wave Solder Operations for through-hole mounted products (THMT)
For Sn/Ag/Cu based solders:
For Sn/Pb based solders:
Maximum Preheat Temperature
115° C.
Maximum Preheat Temperature
105° C.
Maximum Pot Temperature
270° C.
Maximum Pot Temperature
250° C.
Maximum Solder Dwell Time
7 seconds
Maximum Solder Dwell Time
6 seconds
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MDC_SPC-54/4.4-L12PG-C.A03 Page 11 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
Emissions Performance
Murata Power Solutions measures its products for conducted emissions
against the EN 55022 and CISPR 22 standards. Passive resistance loads are
employed and the output is set to the maximum voltage. If you set up your
own emissions testing, make sure the output load is rated at continuous power
while doing the tests.
[3] Conducted Emissions Test Results
The recommended external input and output capacitors (if required) are included. Please refer to the fundamental switching frequency. All of this information
is listed in the Product Specifications. An external discrete filter is installed and
the circuit diagram is shown below.
+12V
Vin_P
C1
330μ
C2
10μ
C3
100n
54V+
Vout_P
12/54V
DC/DC
Murata Power Solutions
Vin_N
54V-
Vout_N
Graph 1. Conducted emissions performance, CISPR 22, Class B, full load
54V+
54V+ POE
S1
TX1
C5
2.2μ
C8
2.2μ
C9
100μ
P1
C4
220μ
5mH
54V-
C6
10n
C7
10n
54V- POE
C10
10n
C11
10n
[4] Layout Recommendations
Most applications can use the filtering which is already installed inside the
converter or with the addition of the recommended external capacitors. For
greater emissions suppression, consider additional filter components and/or
shielding. Emissions performance will depend on the user’s PC board layout,
the chassis shielding environment and choice of external components. Please
refer to Application Note GEAN-02 for further discussion.
Since many factors affect both the amplitude and spectra of emissions, we
recommend using an engineer who is experienced at emissions suppression.
Figure 4. Conducted Emissions Test Circuit
[1] Conducted Emissions Parts List
Reference
Part Number
Description
Aluminum Electrolytic Capacitor
C1
EKZM250ESS331MHB5D
25V 330μF ±20%
SMD CERAMIC 25V 10μF ±10%
C2
GRM31CR71E106KA12
1206
SMD CERAMIC 25V 0.1μF ±10%
C3
GRM219R71E104KA01
0805
Aluminum Electrolytic Capacitor
C4
EKY-101ESS221MK25S
100V 220μF ±20%
SMD CERAMIC 100V 2.2μF ±10%
C5, C8
GRM31CR72A225KA73
1206
Ceramic capacitor CAP Y2/X1 CD
C6, C7, C10, C11 DE2F3KY103MA3BM02
250VAC 2200pF M E VI 7.5
Aluminum Electrolytic Capacitor
C9
EKY-101ESS101MK16S
100V 100μF ±20%
EMI filter common choke
CM
C20200-13
minimum 5mH 8.9A
Vendor
NIPPON
Chemicon
MURATA
MURATA
NIPPON
Chemicon
MURATA
MURATA
NIPPON
Chemicon
ITGElectronics
[2] Conducted Emissions Test Equipment Used
Hewlett Packard HP8594L Spectrum Analyzer – S/N 3827A00153
2Line V-networks LS1-15V 50Ω/50Uh Line Impedance Stabilization Network
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MDC_SPC-54/4.4-L12PG-C.A03 Page 12 of 13
SPC-54/4.4-L12PG-C
240W PoE+ Regulated Converter
Vertical Wind Tunnel
IR Transparent
optical window
Unit under
test (UUT)
Variable
speed fan
The IR camera can watch thermal characteristics of the
Unit Under Test (UUT) with both dynamic loads and static
steady-state conditions. A special optical port is used which is
transparent to infrared wavelengths. The computer files from
the IR camera can be studied for later analysis.
IR Video
Camera
Heating
element
Precision
low-rate
anemometer
3” below UUT
Ambient
temperature
sensor
Airflow
collimator
Figure 4. Vertical Wind Tunnel
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
Murata Power Solutions employs a custom-designed enclosed
vertical wind tunnel, infrared video camera system and test
instrumentation for accurate airflow and heat dissipation
analysis of power products. The system includes a precision
low flow-rate anemometer, variable speed fan, power supply
input and load controls, temperature gauges and adjustable
heating element.
Both through-hole and surface mount converters are soldered
down to a host carrier board for realistic heat absorption and
spreading. Both longitudinal and transverse airflow studies
are possible by rotation of this carrier board since there are
often significant differences in the heat dissipation in the two
airflow directions. The combination of both adjustable airflow,
adjustable ambient heat and adjustable Input/Output currents
and voltages mean that a very wide range of measurement
conditions can be studied.
The airflow collimator mixes the heat from the heating element to make uniform temperature distribution. The collimator
also reduces the amount of turbulence adjacent to the UUT
by restoring laminar airflow. Such turbulence can change the
effective heat transfer characteristics and give false readings.
Excess turbulence removes more heat from some surfaces and
less heat from others, possibly causing uneven overheating.
Both sides of the UUT are studied since there are different thermal
gradients on each side. The adjustable heating element and fan, built-in
temperature gauges and no-contact IR camera mean that power supplies are
tested in real-world conditions.
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2016 Murata Power Solutions, Inc.
www.murata-ps.com/support
MDC_SPC-54/4.4-L12PG-C.A03 Page 13 of 13
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