MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
Typical unit
PRODUCT OVERVIEW
FEATURES
Support IEEE802.3at class4
25.5W DC-DC converter
Support Type2 PSE Indicator
Support Adapter ORing
37-57V Input Voltage range
22.4 x 35.5 x 10.55mm Size
92.5% efficiency (typical, 12Vout)
Surface mount module
2250Vdc Input-Output Isolation
Operating Temperature range -40 to +85 °C
RJ-45
The MYBSP0122BABFT / MYBSP0055AABFT is an isolated, regulated, DCDC converter for PoE PD that has an input range of 37-57Vdc with a typical
efficiency of 92.5%(12Vout), and full 2250 Volt DC isolation.
The MYBSP0122BABFT / MYBSP0055AABFT is ideal for IEEE 802.3at
Compliant Devices. Module has self-protection features. These include input
undervoltage lockout and output current limit. The outputs current limit is
using the hiccup autorestart technique.
And the module has detection and classification for compliant IEEE802.3at.
MYBSP0122BABFT / MYBSP0055AABFT has three additional pins for
Type2 PSE Indicator and Adapter ORing compared to MYBSP0122BABF/
MYBSP0055AABF.
MYBSP0122BABFT / MYBSP0055AABFT
1
Data
+Vin
+Vout
T2P
indicator
2
UTP Cable
3
To PSE
Power
+ Data
Data
-Vout
-Vin
6
PD controller and
Flyback controller
•Hot swap
•PoE detection and classification
4
Optocoupler
Vout
Detection
5
DEN
7
T2P
VC
Option1:
Type2 PSE Indicator
8
Option2:
Adapter ORing
Adapter
Figure 1. Simplified Block Diagram
Typical topology is shown.
http://www.murata.com/products/power
Export Control Code : X0863 Document No : D90DH - 00043
MYBSP0122BABFT / MYBSP0055AABFT A01 Page 1 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output
Input
Vin
Vout
Iout
Power R/N Max. Regulation Typ.
Nom.
(Vdc) (A,Max.) (W)
(mVp-p) Line (%) Load (%)
(Vdc)
Model Number
Range
(Vdc)
Iin, no
Iin, full
load
load
Typ.(mA) Typ.(A)
Efficiency
(%)
Min.
Typ.
MYBSP0122BABFT
12
2.125
25.5
150
±0.1
±0.1
48
37-57
3
0.57
90
92.5
MYBSP0055AABFT
5
5.1
25.5
150
±0.1
±0.1
48
37-57
5
0.59
88
90.5
A
B
Package
(mm)
22.4 x 35.5 x 10.55
1. Please refer to the Part Number Structure for additional ordering information and options.
2. All specifications are at nominal line voltage, full load, +25°C unless otherwise stated.
PART NUMBER STRUCTURE
MY
BSP
012
2B
F
T
Option Code
T = Support T2P and Adapter ORing
MURATA Standard
DC-DC Convertor
Internal Control Code
Isolated DC-DC Convertor
for PoE PD IEEE802.3xx
Pin Type
B = Surface mount pin
Output Voltage
012 = 12V
005 = 5V
Nominal Input Voltage
A = 48V nominal
Output Current
2B = 2.125A
5A = 5.1A
Product Marking
Layout
Top View
Codes
MFG ID
Model Number
Internal Manufacturing Code
1Pin
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 2 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
FUNCTIONAL SPECIFICATIONS, MYBSP0122BABFT
ABSOLUTE MAXIMUM RATINGS
Input Voltage, Continuous
Input Voltage, Transient
Isolation Voltage
Output Power
Conditions
100ms max. duration
Input to output, Leak current 1mA max
for 1minute at +25°C/60%RH.
Minimum
0
Typical / Nominal
Maximum
57
60
Units
Vdc
Vdc
2250
Vdc
0
25.5
W
Current-limited, no damage, short-circuit
Output Current
0
2.125
A
protected
°C
Storage Temperature Range
Vin = Zero (no power)
-40
90
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 or recommended.
INPUT
Operating Voltage Range
37
48
57
Vdc
Start-up threshold
Rising input voltage
36.1
40.2
Vdc
Undervoltage shutdown
Falling input voltage
30.3
33.8
Vdc
Internal Filter Type
Pi
Input current
Full Load Conditions
Vin = nom., Iout = max
0.57
A
Low Line Input current
Vin = min., Iout = max.
0.64
A
No Load Current
Vin = nom., Iout = 0A.
3
mA
On Resistance of Internal Hotswap
0.45
Ω
Resistance for detection
Vin=2.7 to 10.1V
24.9
kΩ
Classification current
Vin=14.5 to 20.5V
40
mA
GENERAL and SAFETY
Efficiency
Vin = 48V, full load
90
92.5
Isolation
Input to output, Leak current 1mA max
Isolation Voltage
2250
Vdc
for 1minute at +25°C/60%RH.
Insulation Safety Rating
Functional
Isolation Capacitance
1500
pF
Telcordia SR-332, issue 1, class 3,
Calculated MTBF
2476
Hours x 103
ground fixed, Ta = +25°C
DYNAMIC CHARACTERISTIC
Fixed Switching Frequency *1
Iout = max
220
kHz
Vout Rise Time
From 10%-90% of Vout
10
ms
Dynamic Load Response
50-100-50% load step to 1% of Vout
150
μSec
±200
Dynamic Load Peak Deviation
same as above
mVdc
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 3 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
FUNCTIONAL SPECIFICATIONS, MYBSP0122BABFT(CONT.)
OUTPUT
Total Output Power
Voltage
Nominal Output Voltage
Overvoltage Protection
Current
Output Current Range *2
Current Limit Inception
Short circuit protection method
Regulation
Line Regulation
Load Regulation
Ripple and Noise
Temperature Coefficient
Maximum Capacitive Loading
T2P / VC / DEN
T2P
Sinking Current
VC
Output Voltage
DEN
Output Voltage
Output Current
Disable Voltage
MECHANICAL
Outline Dimensions
Weight
Pin Diameter
Pin Material
ENVIRONMENTAL
Operating Ambient Temperature
Range
Storage Temperature
Thermal Protection/Shutdown
Electromagnetic Interference
Conducted, EN55022/CISPR22
RoHS rating
Conditions
Minimum
0
Typical / Nominal
Maximum
25.5
Units
W
all conditions
11.64
12
None
12.36
Vdc
Vdc
2.125
A
A
Hiccup current limiting
Vin=min. to max., Vout=nom., full load
Iout = min. to max.
150 MHz BW, Cout=1μF MLCC
paralleled with 10μF
At all outputs
Low ESR
0
2.2
Non-latching
±0.1
±0.1
0
±0.02
After 2 event classification,
T2P connect to VC
1.2
After start up
8.5
DEN=open
DEN connect to -Vin
Falling
LxWxH
External filter is required
150
mV pk-pk
400
% of Vout/°C
μF
mA
12
V
+Vin
5
2.8
V
mA
V
22.4 x 35.5 x 10.55
13.1
1.57
Copper alloy
-40
Vin = Zero (no power)
Measured at hotspot
% of Vout
% of Vout
-40
None
B
mm
Grams
mm
85
°C
90
°C
°C
Class
RoHS-6
Specification Notes
Unless otherwise noted, all specifications are typical at nominal input voltage,
nominal output voltage and full load. General conditions are +25°C ambient
temperature, near sea level altitude, natural convection airflow. All models are
tested and specified with external parallel 0.1μF and 10μF output capacitors
(See Technical Notes).
*1 Variable frequency operation at light load.
*2 Input current must be greater than or equal to 10mA if your application
applies Maintain Power Signature(MPS) by IEEE802.3at. Please check with
your application.
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 4 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
PERFORMANCE DATA, MYBSP0122BABFT
Efficiency vs. Line Voltage and Load Current
(Ta=+25°C)
Load Regulation (Ta=+25°C)
Vout Start-up
(Vin=48V, Iout=2.125A, Ta=+25°C)
Output Ripple and Noise
(Vin=48V, Iout=2.125A, Ta=+25°C)
5V/div
10ms/div
Transient Response (Vin=48V, Iout=1.06A to 2.125A, Ta=+25°C)
Ch2=Vout, 200mV/div, Ch4=Iout, 1A/div
400μs/div
50mV/div
4μs/div
Transient Response (Vin=48V, Iout=2.125A to 1.06A, Ta=+25°C)
Ch2=Vout, 200mV/div, Ch4=Iout, 1A/div
400μs/div
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 5 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
PERFORMANCE DATA, MYBSP0122BABFT(CONT.)
Conduction Noise (Vin=48V, Iout=2.125A, Ta=+25°C)
with External Input Filter
Thermal Derating
Unit under test (UUT) is covered by acrylic box to avoid airflow.
(Vin=42.5-57V, See Technical Notes)
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 6 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
FUNCTIONAL SPECIFICATIONS, MYBSP0055AABFT
ABSOLUTE MAXIMUM RATINGS
Input Voltage, Continuous
Input Voltage, Transient
Isolation Voltage
Output Power
Conditions
100ms max. duration
Input to output, Leak current 1mA max
for 1minute at +25°C/60%RH.
Minimum
0
Typical / Nominal
Maximum
57
60
Units
Vdc
Vdc
2250
Vdc
0
25.5
W
Current-limited, no damage, short-circuit
Output Current
0
5.1
A
protected
°C
Storage Temperature Range
Vin = Zero (no power)
-40
90
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 or recommended.
INPUT
Operating Voltage Range
37
48
57
Vdc
Start-up threshold
Rising input voltage
36.1
40.2
Vdc
Undervoltage shutdown
Falling input voltage
30.3
33.8
Vdc
Internal Filter Type
Pi
Input current
Full Load Conditions
Vin = nom., Iout = max
0.59
A
Low Line Input current
Vin = min., Iout = max.
0.67
A
No Load Current
Vin = nom., Iout = 0A.
5
mA
On Resistance of Internal Hotswap
0.45
Ω
Resistance for detection
Vin=2.7 to 10.1V
24.9
kΩ
Classification current
Vin=14.5 to 20.5V
40
mA
GENERAL and SAFETY
Efficiency
Vin = 48V, full load
88
90.5
Isolation
Input to output, Leak current 1mA max
Isolation Voltage
2250
Vdc
for 1minute at +25°C/60%RH.
Insulation Safety Rating
Functional
Isolation Capacitance
1500
pF
Telcordia SR-332, issue 1, class 3,
Calculated MTBF
2476
Hours x 103
ground fixed, Ta = +25°C,
DYNAMIC CHARACTERISTIC
Fixed Switching Frequency *1
Iout = max
220
kHz
Vout Rise Time
From 10%-90% of Vout
5
ms
Dynamic Load Response
50-100-50% load step to 1% of Vout
150
μSec
±100
Dynamic Load Peak Deviation
same as above
mVdc
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 7 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
FUNCTIONAL SPECIFICATIONS, MYBSP0055AABFT(CONT.)
OUTPUT
Total Output Power
Voltage
Nominal Output Voltage
Overvoltage Protection
Current
Output Current Range *2
Current Limit Inception
Short circuit protection method
Regulation
Line Regulation
Load Regulation
Ripple and Noise
Temperature Coefficient
Maximum Capacitive Loading
T2P / VC / DEN
T2P
Sinking Current
VC
Output Voltage
DEN
Output Voltage
Output Current
Disable Voltage
MECHANICAL
Outline Dimensions
Weight
Pin Diameter
Pin Material
ENVIRONMENTAL
Operating Ambient Temperature
Range
Storage Temperature
Thermal Protection/Shutdown
Electromagnetic Interference
Conducted, EN55022/CISPR22
RoHS rating
Conditions
Minimum
0
Typical / Nominal
Maximum
25.5
Units
W
all conditions
4.85
5
None
5.15
Vdc
Vdc
5.1
A
A
Hiccup current limiting
Vin=min. to max., Vout=nom., full load
Iout = min. to max.
150 MHz BW, Cout=1μF MLCC
paralleled with 10μF
At all outputs
Low ESR
0
5.3
Non-latching
±0.1
±0.1
0
±0.02
After 2 event classification,
T2P connect to VC
1.2
After start up
8.5
DEN=open
DEN connect to -Vin
Falling
LxWxH
External filter is required
150
mV pk-pk
400
% of Vout/°C
μF
mA
12
V
+Vin
5
2.8
V
mA
V
22.4 x 35.5 x 10.55
13.1
1.57
Copper alloy
-40
Vin = Zero (no power)
Measured at hotspot
% of Vout
% of Vout
-40
None
B
mm
Grams
mm
85
°C
90
°C
°C
Class
RoHS-6
Specification Notes
Unless otherwise noted, all specifications are typical at nominal input voltage,
nominal output voltage and full load. General conditions are +25°C ambient
temperature, near sea level altitude, natural convection airflow. All models are
tested and specified with external parallel 0.1μF and 10μF output capacitors
(See Technical Notes).
*1 Pulse skip operation at light load.
*2 Input current must be greater than or equal to 10mA if your application
applies Maintain Power Signature(MPS) by IEEE802.3at. Please check with
your application.
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 8 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
PERFORMANCE DATA, MYBSP0055AABFT
Efficiency vs. Line Voltage and Load Current
(Ta=+25°C)
Load Regulation (Ta=+25°C)
Vout Start-up
(Vin=48V, Iout=5.1A, Ta=+25°C)
Output Ripple and Noise
(Vin=48V, Iout=5.1A, Ta=+25°C)
2V/div
10ms/div
Transient Response (Vin=48V, Iout=2.55A to 5.1A, Ta=+25°C)
Ch3=Vout, 200mV/div, Ch4=Iout, 2A/div
200μs/div
50mV/div
4μs/div
Transient Response (Vin=48V, Iout=2.55A to 5.1A, Ta=+25°C)
Ch3=Vout, 200mV/div, Ch4=Iout, 2A/div
200μs/div
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 9 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
PERFORMANCE DATA, MYBSP0055AABFT(CONT.)
Conduction Noise (Vin=48V, Iout=5.1A, Ta=+25°C)
with External Input Filter
Conduction Noise (Vin=48V, Iout=5.1A, Ta=+25°C)
with External Input Filter
Thermal Derating
Unit under test (UUT) is covered by acrylic box to avoid airflow.
(Vin=42.5-57V, See Technical Notes)
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 10 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
MECHANICAL SPECIFICATIONS
Bottom View
11.43±0.25
(2.53)
Top View
6
7
(18.8)
35.5±0.5
30.44±0.25
Pickup area Φ8.0
5 4 3 2
P P P
(10.0)
22.4±0.5
1
(3.58)
(8.85)
(4.85)
10.55±0.6
15.24±0.25
P=3.0±0.25
Tolerance of “P” should not be
accumulated.
0.15
Pin
1
2
3
4
5
6
7
[Unit:mm]
INPUT / OUTPUT CONNECTIONS
Designation
Function
+Vin
Positive Input Voltage
DEN
Detection and Enable
T2P
Type-2 PSE Indicator
VC
Controller Voltage
-Vin
Negative Input Voltage
-Vout
Negative Output Voltage
+Vout
Positive Output Voltage
Pin size
Φ1.57
Φ1.57
Φ1.57
Φ1.57
Φ1.57
Φ1.57
Φ1.57
RECOMMENDED FOOTPRINT (TOP VIEW)
35.5±0.5
30.5
7-2.2×2.8 R1.0
Only GND pattern
for primary side
8
11.43±0.25
P P P
15.24±0.25
22.4±0.5
4
P=3.0±0.25
Tolerance of “P” should not be
accumulated.
30.44±0.25
Keep out area
for Isolation barrier
[Unit : mm]
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 11 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
PACKAGING INFORMATION (SURFACE MOUNT, MSL Rating 2)
Packaging form
The products are placed in the Emboss Tape as below
1Pin
Pulling Direction
57.5
φ100
φ330
A
2.0
φ21.0
Indication
φ13.0
[Unit:mm]
Detail A
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 12 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
PACKAGING INFORMATION (SURFACE MOUNT, MSL Rating 2)
Packaging form
Taping Specification
Epmty portion
(200mm MIN)
Epmty portion
(180mm MIN)
Leader portion
(200mm MIN)
"Module on tape" portion
Indication
1.
2.
3.
4.
5.
6.
The adhesive strength of the protective tape must be within 0.1-1.3N.
Each reel contains 100 pcs.
Each reel set in moisture-proof packaging because of MSL Rating 2.
The deficiency per reel is 0 piece.
The reel shows customer part number, Murata part number and quantity.
The color of reel is not designated.
Aircap
Aluminum packing
for moisture-proof
Aircap
Inner Box
Label
Remark
Marking on the box and real
1.MURATA Parts Number
2.Quantity
3.No./Inspection No.
4.ROHS -Y
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 13 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
TECHNICAL NOTES
Over Current Protection
Over Current Protection operates with a controller circuit failure or
over-load condition, and DC-DC converter will enter hiccup mode.
After rejected the abnormal mode, DC-DC converter will
automatically restart.
External Input Capacitor
Do not connect any capacitor between positive input and negative
input to avoid large inrush current. It is one of the requirements of
IEEE802.3at standard.
Test Circuit
The initial values in Functional Specification are measured in the
following test circuit.
1
10mΩ
ｖ
Vin
+Vout
+Vin
ｖ
2
-Vout
-Vin
-Vin
ｖ
Ripple Noise Test
Output ripple noise is measured using designated external output
components, circuits and layout as shown below.
50mm
C2 : Ceramic Capacitor 0.1μF
C3 : Ceramic Capacitor 10μF
C3
VC
Type2
PSE
Indicator
-Vout
PC1
When deviating from the above, DC-DC converter may operate
abnormally. It should be fully confirmed on your board before use.
C2
R1
3.3kohm
T2P
3
C1 : Ceramic Capacitor 0~400μF
RL : Electronic Load Device : LN-1000A-G7 KEISOKU GIKEN
equivalent
Vin : DC Power Supply :Model HP6675A KEYSIGHT equivalent
V : Digital Multimeter :Model HP34401A KEYSIGHT equivalent
DC-DC
Converter
3.3kohm
RL
ｖ
LOAD
+Vout
8.5Vtyp
10mΩ
C1
MYBSP0122BABFT / MYBSP0055AABFT
+Vin
4
DC-DC
Convertor
Type2 PSE Indicator
T2P(Pin3) is open drain output. After 2 event classification,
MYBSP0122BABFT / MYBSP0055AABFT pulls T2P low. Please pull
up T2P by VC(Pin4). VC is source only for T2P. Do not apply VC for
any other purpose. Appropriate board design for isolation barrier is
required(Opto-coupler selection and Isolation distance). Also
consider CTR of Opto-coupler which may affect value of R1. Keep
T2P and VC open if you don’t apply this function. Typical application
circuit is below.
Terminating resistance
TRC-50F
LOAD
Isolation barrier
Example
R1: MYBSP0122BABFT: 33kohm 0.1W
MYBSP0055AABFT: 15kohm 0.1W
PC1: TLP293(GRH (TOSHIBA)
Classification
1-event
2-event
Type2 PSE Indicator
High
Low
Adapter ORing
DEN(Pin2) handles Enable / Disable of MYBSP0122BABFT /
MYBSP0055AABFT. In case of applying external power output by
adapter, MYBSP needs to be disable. Connecting DEN to –Vin
disable MYBSP. There is limitation for voltage from adapter. Please
see chart next page. Keep open if you don’t use this function.
Typical application circuit is below.
Oscilloscope
Coaxial cable
1.5m50Ω
BW=150MHz
Conduction Noise
The external input filter is installed and the circuit diagram is shown
below.
20000pF
Resistive
load
68μH
48V
LISN
(KNW407)
DC-DC
Converter
Input External
Common mode choke
: PE-53913NL(Pulse)
20000pF
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MYBSP0122BABFT / MYBSP0055AABFT A01 Page 14 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
Limitation for adapter voltage
P/N
MYBSP0122BABFT
MYBSP0055AABFT
Acceptable voltage range
from Adapter at Vout of MYBSP
10.0 – 12.8V
4.5 – 5.05V
Thermal Derating Condition
The output current is limited by the derating curve. The derating
curve in this datasheet illustrate typical operation under a variety of
conditions.
DC-DC Converter is tested on a 101.6x188mm, 2 layers Copper
evaluation board at Vin=48V.
The Unit Under Test (UUT) is set up as shown below.
UUT is covered by acrylic box to avoid airflow.
The temperature measurement points are shown below table. The
temperature of measurement points should not exceed the
maximum temperatures in the below table.
Position
P1
P2
P3
P4
Description
FET
FET
Opto-coupler
Transformer pattern
Max temperature
TP1MAX = 124°C
TP2MAX = 124°C
TP2MAX = 105°C
TP3MAX = 125°C
Detection and Hardware Classification
DC-DC converter implements IEEE 802.3at compliant detection and
hardware classification.
When DC-DC converter(PD) is connected to PSE, the PSE applies
two voltages in the range of 2.8 V to 10 V and measures the
corresponding current. Connection to PD is detected by measured
current.(Detection)
After Detection, the PSE applies voltage in the range of 15.5 V to
20.5 V and measures the corresponding current. PD is classified by
measured current.(Hardware Classification)
Please check with your application.
SMT Reflow Soldering Guidelines
The surface-mount reflow solder profile is shown below.
This graph should be used only as a guideline.
Reflow Soldering Profiles : JEDEC IPC/JEDE J-STD-020D
Soldering temperature
Soldering time
Heating time
Preheat time
Programming rate
Descending rate
Total soldering time
Time
245°C +0/-5°C
30 seconds, 240°C-245°C
60～150 seconds, 217°C min.
60～120 seconds, 150°C-200°C
3°C /sec.max., 217°C-245°C
6°C /sec.max.
8 minutes max.,25°C-245°C
1time
P1 (FET)
245℃
P3
(Opto-coupler)
217℃
200℃
P4
(Transformer
pattern)
150℃
P2 (FET)
1Pin
Top View
60-150 seconds
60-120 seconds
1Pin
Bottom View
Times
Do not vibrate for the products on reflow. Please need to take care
temperature control because mounted parts may come off if the
product is left under the high temperature. Do not mount on
backside of the board.
Many other factors influence the success of SMT reflow soldering.
Since your production environment may differ, please thoroughly
review these guidelines with your process engineers.
101.6mm
188.0mm
1Pin
Acrylic box
Unit Under Test (UUT)
http://www.murata.com/products/power
MYBSP0122BABFT / MYBSP0055AABFT A01 Page 15 of 16
MYBSP0122BABFT / MYBSP0055AABFT
Isolated DC-DC converter for PoE PD
Functional Specifications
Please contact Murata Sales before using this product for the
applications listed below. These are applications that require very
high reliability of prevention of defects which might directly cause
damage to third party’s life, body, or property.
1. Aircraft equipment
2. Aerospace equipment
3. Undersea equipment
4. Power plant control equipment
5. Medical equipment
6. Transportation equipment (cars, buses, trucks, trains, ships, etc.)
7. Traffic signal equipment
8. Disaster prevention /crime prevention equipment
9. Data-processing equipment
10. Application of similar complexity and /or reliability listed as
above.
Storage
Please store this product in an environment where the
temperature/humidity is stable in the range 0 to 40°C/10 to 75%RH
and no direct sunlight. Use the product within 6 months after
delivery.
Please avoid storage conditions where humidity and temperature
change rapidly, as that may cause condensation on the product,
which might degrade the quality of the product.
Please do not store the product environments that are dusty, in
direct exposure to sea breeze, or in an atmosphere containing
corrosive gas (Cl2, NH3, SO2, NOX and so on).
Operational environment and operational conditions
This product is not chemical-proof or rust-proof.
In order to prevent this product from leakage of electricity and/or
abnormal temperature increase, do not use the product under the
following circumstances:
(1) in an atmosphere containing corrosive gas (Cl2, NH3, SO2, NOX
and so on).
(2) in a dusty place.
(3) in a place exposed to direct sunlight.
(4) in such a place where water splashes or in such a humid place
where water condenses.
(5) in a place exposed to sea breeze.
(6) in any other places similar to the above (1)through (5).
Operational Conditions
Please use the product within specified values (power supply,
temperature, input, output and load condition etc.). Input voltage
drops for line impedance, so please make sure that input voltage is
within in specified values.
If the product is used over the specified values, it may damage the
product, reduce the quality, and even if the products can endure the
condition for short time, it may cause degradation of the reliability.
Note Prior to use
If you apply high static electricity, voltage higher than rated voltage
or reverse voltage to the product, it may cause defects in the
products or degrade the reliability.
Please avoid the following items:
1. Over rating power supply, reverse power supply or not-enough
connection of input voltage and 0V(DC)line
2. Electrostatic discharge by production line and/or operator
3. Electrified product by electrostatic induction
Do not subject product to excessive mechanical shock. If you drop
the product on the floor it might cause a crack to the core of
inductors and monolithic ceramic capacitors.
Also please pay attention to handling; the mounted parts can be
dislodged if subjected to excessive force.
Transportation
If you transport the product, please pack it so that the package will
not be damaged by mechanical vibration or mechanical shock, and
please educate and guide the carrier to prevent rough handling.
Note
1. Please make sure that the product has been evaluated and
confirmed against your specifications when it is mounted to your
product.
2. All the items and parameters in this product specification have
been prescribed on the premise that our product is used for the
purpose, under the conditions and in the environment agreed upon
between you and us. You are requested not to use our product
deviating from such agreement.
3. We consider it not appropriate to include other terms and
conditions for transaction warranty in product specifications,
drawings or other technical documents. Therefore, if your technical
documents as above include such terms and conditions as warranty
clause, product liability clause, or intellectual property infringement
liability clause, we will not be able to accept such terms and
conditions unless they are based on the governmental regulation or
they are stated in a separate contract agreement.
!
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: https://power.murata.com/en/requirements
Murata Manufacturing Co., Ltd 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. Spec and cautions are subject to change without notice.
© 2018 Murata Manufacturing Co., Ltd
http://www.murata.com/products/power
Specifications are subject to change without notice.
MYBSP0122BABFT / MYBSP0055AABFT A01 Page 16 of 16
