MYBSP Series
Isolated DC-DC converter for PoE+ PD
Typical unit
FEATURES PRODUCT OVERVIEW
?IEEE802.3at compliant The MYBSP Series is an isolated, regulated, DC-DC convertor for PoE+
?25.5W DC-DC converter PD that has an input range of 42.5-57Vdc with a typical efficiency of
?42.5-57 Input Voltage range 92.5%(12Vout), and full 2250 Volt DC isolation.
?22.4 x 35.5 x 10.55mm Size The MYBSP Series is ideal for IEEE 802.3at Compliant Devices.
?92.5% efficiency (typical, 12Vout) Module has self-protection features. These include input undervoltage
?Surface mount module lockout and output current limit. The outputs current limit is using the
?2250Vdc Input-Output Isolation hiccup autorestart technique.
?Operating Temperature range -40 to + 85 ?C
MYBSP Series
Isolated Flyback Converter
1 4
*1 *3
*2
3
2
IEEE802.3at compliant controller
Opto- Vout
?Flyback controller
coupler Detection
*1 0.1?F ?Hot swap
*2 SMAJ58A ?PoE detection and classification
*3 5?F minimum
Figure 1. Simplified Block Diagram
Typical topology is shown.
Export Control Code : X0863 Document No : DC-R140214
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 1 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
Typical unit
FEATURES PRODUCT OVERVIEW
?IEEE802.3at compliant The MYBSP Series is an isolated, regulated, DC-DC convertor for PoE+
?25.5W DC-DC converter PD that has an input range of 42.5-57Vdc with a typical efficiency of
?42.5-57 Input Voltage range 92.5%(12Vout), and full 2250 Volt DC isolation.
?22.4 x 35.5 x 10.55mm Size The MYBSP Series is ideal for IEEE 802.3at Compliant Devices.
?92.5% efficiency (typical, 12Vout) Module has self-protection features. These include input undervoltage
?Surface mount module lockout and output current limit. The outputs current limit is using the
?2250Vdc Input-Output Isolation hiccup autorestart technique.
?Operating Temperature range -40 to + 85 ?C
MYBSP Series
Isolated Flyback Converter
1 4
*1 *3
*2
3
2
IEEE802.3at compliant controller
Opto- Vout
?Flyback controller
coupler Detection
*1 0.1?F ?Hot swap
*2 SMAJ58A ?PoE detection and classification
*3 5?F minimum
Figure 1. Simplified Block Diagram
Typical topology is shown.
Export Control Code : X0863 Document No : DC-R140214
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 1 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output Input
Efficiency
Package
(%)
Vin Iin, no Iin, full
Model Number Regulation Typ.
Vout Iout Power R/N Max. Range
(mm)
Nom. load load
(Vdc) (A,Max.) (W) (mVp-p) (Vdc)
Line (%) Load (%) Min. Typ.
(Vdc) Typ.(mA) Typ.(A)
MYBSP0122BABF 12 2.125 25.5 150 ?0.1 ?0.1 48 42.5-57 3 0.57 90 92.5
22.4 x 35.5 x 10.55
MYBSP0055AABF 5 5.1 25.5 150 ?0.1 ?0.1 48 42.5-57 5 0.59 88 90.5
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 A B F
ON/OFF Control Logic
MURATA Standard
F = None
DC-DC Convertor
Isolated DC-DC Convertor
Pin Type
for PoE PD IEEE802.3at
B = Surface mount pin (MSL Rating 2)
Output Voltage
Nominal Input Voltage
012 = 12V
A = 48V nominal
005 = 5V
Output Current
2B = 2.125A
5A = 5.1A
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 2 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
Typical unit
FEATURES PRODUCT OVERVIEW
?IEEE802.3at compliant The MYBSP Series is an isolated, regulated, DC-DC convertor for PoE+
?25.5W DC-DC converter PD that has an input range of 42.5-57Vdc with a typical efficiency of
?42.5-57 Input Voltage range 92.5%(12Vout), and full 2250 Volt DC isolation.
?22.4 x 35.5 x 10.55mm Size The MYBSP Series is ideal for IEEE 802.3at Compliant Devices.
?92.5% efficiency (typical, 12Vout) Module has self-protection features. These include input undervoltage
?Surface mount module lockout and output current limit. The outputs current limit is using the
?2250Vdc Input-Output Isolation hiccup autorestart technique.
?Operating Temperature range -40 to + 85 ?C
MYBSP Series
Isolated Flyback Converter
1 4
*1 *3
*2
3
2
IEEE802.3at compliant controller
Opto- Vout
?Flyback controller
coupler Detection
*1 0.1?F ?Hot swap
*2 SMAJ58A ?PoE detection and classification
*3 5?F minimum
Figure 1. Simplified Block Diagram
Typical topology is shown.
Export Control Code : X0863 Document No : DC-R140214
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 1 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
Typical unit
FEATURES PRODUCT OVERVIEW
?IEEE802.3at compliant The MYBSP Series is an isolated, regulated, DC-DC convertor for PoE+
?25.5W DC-DC converter PD that has an input range of 42.5-57Vdc with a typical efficiency of
?42.5-57 Input Voltage range 92.5%(12Vout), and full 2250 Volt DC isolation.
?22.4 x 35.5 x 10.55mm Size The MYBSP Series is ideal for IEEE 802.3at Compliant Devices.
?92.5% efficiency (typical, 12Vout) Module has self-protection features. These include input undervoltage
?Surface mount module lockout and output current limit. The outputs current limit is using the
?2250Vdc Input-Output Isolation hiccup autorestart technique.
?Operating Temperature range -40 to + 85 ?C
MYBSP Series
Isolated Flyback Converter
1 4
*1 *3
*2
3
2
IEEE802.3at compliant controller
Opto- Vout
?Flyback controller
coupler Detection
*1 0.1?F ?Hot swap
*2 SMAJ58A ?PoE detection and classification
*3 5?F minimum
Figure 1. Simplified Block Diagram
Typical topology is shown.
Export Control Code : X0863 Document No : DC-R140214
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 1 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output Input
Efficiency
Package
(%)
Vin Iin, no Iin, full
Model Number Regulation Typ.
Vout Iout Power R/N Max. Range
(mm)
Nom. load load
(Vdc) (A,Max.) (W) (mVp-p) (Vdc)
Line (%) Load (%) Min. Typ.
(Vdc) Typ.(mA) Typ.(A)
MYBSP0122BABF 12 2.125 25.5 150 ?0.1 ?0.1 48 42.5-57 3 0.57 90 92.5
22.4 x 35.5 x 10.55
MYBSP0055AABF 5 5.1 25.5 150 ?0.1 ?0.1 48 42.5-57 5 0.59 88 90.5
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 A B F
ON/OFF Control Logic
MURATA Standard
F = None
DC-DC Convertor
Isolated DC-DC Convertor
Pin Type
for PoE PD IEEE802.3at
B = Surface mount pin (MSL Rating 2)
Output Voltage
Nominal Input Voltage
012 = 12V
A = 48V nominal
005 = 5V
Output Current
2B = 2.125A
5A = 5.1A
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 2 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
FUNCTIONAL SPECIFICATIONS, MYBSP0122BABF
ABSOLUTE MAXIMUM RATINGS Conditions Minimum Typical / Nominal Maximum Units
Input Voltage, Continuous 0 57 Vdc
Input Voltage, Transient 100ms max. duration 60 Vdc
Input to output, Leak current 1mA max
Isolation Voltage 2250 Vdc
for 1minute at +25 ?C/60%RH.
Output Power 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 42.5 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 ?
Resistance for detection Vin=2.7 to 10.1V 24.9 k?
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,
3
Calculated MTBF 2476 Hours x 10
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 ?Sec
Dynamic Load Peak Deviation same as above ?200 mVdc
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 3 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
Typical unit
FEATURES PRODUCT OVERVIEW
?IEEE802.3at compliant The MYBSP Series is an isolated, regulated, DC-DC convertor for PoE+
?25.5W DC-DC converter PD that has an input range of 42.5-57Vdc with a typical efficiency of
?42.5-57 Input Voltage range 92.5%(12Vout), and full 2250 Volt DC isolation.
?22.4 x 35.5 x 10.55mm Size The MYBSP Series is ideal for IEEE 802.3at Compliant Devices.
?92.5% efficiency (typical, 12Vout) Module has self-protection features. These include input undervoltage
?Surface mount module lockout and output current limit. The outputs current limit is using the
?2250Vdc Input-Output Isolation hiccup autorestart technique.
?Operating Temperature range -40 to + 85 ?C
MYBSP Series
Isolated Flyback Converter
1 4
*1 *3
*2
3
2
IEEE802.3at compliant controller
Opto- Vout
?Flyback controller
coupler Detection
*1 0.1?F ?Hot swap
*2 SMAJ58A ?PoE detection and classification
*3 5?F minimum
Figure 1. Simplified Block Diagram
Typical topology is shown.
Export Control Code : X0863 Document No : DC-R140214
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 1 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
Typical unit
FEATURES PRODUCT OVERVIEW
?IEEE802.3at compliant The MYBSP Series is an isolated, regulated, DC-DC convertor for PoE+
?25.5W DC-DC converter PD that has an input range of 42.5-57Vdc with a typical efficiency of
?42.5-57 Input Voltage range 92.5%(12Vout), and full 2250 Volt DC isolation.
?22.4 x 35.5 x 10.55mm Size The MYBSP Series is ideal for IEEE 802.3at Compliant Devices.
?92.5% efficiency (typical, 12Vout) Module has self-protection features. These include input undervoltage
?Surface mount module lockout and output current limit. The outputs current limit is using the
?2250Vdc Input-Output Isolation hiccup autorestart technique.
?Operating Temperature range -40 to + 85 ?C
MYBSP Series
Isolated Flyback Converter
1 4
*1 *3
*2
3
2
IEEE802.3at compliant controller
Opto- Vout
?Flyback controller
coupler Detection
*1 0.1?F ?Hot swap
*2 SMAJ58A ?PoE detection and classification
*3 5?F minimum
Figure 1. Simplified Block Diagram
Typical topology is shown.
Export Control Code : X0863 Document No : DC-R140214
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 1 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output Input
Efficiency
Package
(%)
Vin Iin, no Iin, full
Model Number Regulation Typ.
Vout Iout Power R/N Max. Range
(mm)
Nom. load load
(Vdc) (A,Max.) (W) (mVp-p) (Vdc)
Line (%) Load (%) Min. Typ.
(Vdc) Typ.(mA) Typ.(A)
MYBSP0122BABF 12 2.125 25.5 150 ?0.1 ?0.1 48 42.5-57 3 0.57 90 92.5
22.4 x 35.5 x 10.55
MYBSP0055AABF 5 5.1 25.5 150 ?0.1 ?0.1 48 42.5-57 5 0.59 88 90.5
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 A B F
ON/OFF Control Logic
MURATA Standard
F = None
DC-DC Convertor
Isolated DC-DC Convertor
Pin Type
for PoE PD IEEE802.3at
B = Surface mount pin (MSL Rating 2)
Output Voltage
Nominal Input Voltage
012 = 12V
A = 48V nominal
005 = 5V
Output Current
2B = 2.125A
5A = 5.1A
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 2 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
Typical unit
FEATURES PRODUCT OVERVIEW
?IEEE802.3at compliant The MYBSP Series is an isolated, regulated, DC-DC convertor for PoE+
?25.5W DC-DC converter PD that has an input range of 42.5-57Vdc with a typical efficiency of
?42.5-57 Input Voltage range 92.5%(12Vout), and full 2250 Volt DC isolation.
?22.4 x 35.5 x 10.55mm Size The MYBSP Series is ideal for IEEE 802.3at Compliant Devices.
?92.5% efficiency (typical, 12Vout) Module has self-protection features. These include input undervoltage
?Surface mount module lockout and output current limit. The outputs current limit is using the
?2250Vdc Input-Output Isolation hiccup autorestart technique.
?Operating Temperature range -40 to + 85 ?C
MYBSP Series
Isolated Flyback Converter
1 4
*1 *3
*2
3
2
IEEE802.3at compliant controller
Opto- Vout
?Flyback controller
coupler Detection
*1 0.1?F ?Hot swap
*2 SMAJ58A ?PoE detection and classification
*3 5?F minimum
Figure 1. Simplified Block Diagram
Typical topology is shown.
Export Control Code : X0863 Document No : DC-R140214
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 1 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
Typical unit
FEATURES PRODUCT OVERVIEW
?IEEE802.3at compliant The MYBSP Series is an isolated, regulated, DC-DC convertor for PoE+
?25.5W DC-DC converter PD that has an input range of 42.5-57Vdc with a typical efficiency of
?42.5-57 Input Voltage range 92.5%(12Vout), and full 2250 Volt DC isolation.
?22.4 x 35.5 x 10.55mm Size The MYBSP Series is ideal for IEEE 802.3at Compliant Devices.
?92.5% efficiency (typical, 12Vout) Module has self-protection features. These include input undervoltage
?Surface mount module lockout and output current limit. The outputs current limit is using the
?2250Vdc Input-Output Isolation hiccup autorestart technique.
?Operating Temperature range -40 to + 85 ?C
MYBSP Series
Isolated Flyback Converter
1 4
*1 *3
*2
3
2
IEEE802.3at compliant controller
Opto- Vout
?Flyback controller
coupler Detection
*1 0.1?F ?Hot swap
*2 SMAJ58A ?PoE detection and classification
*3 5?F minimum
Figure 1. Simplified Block Diagram
Typical topology is shown.
Export Control Code : X0863 Document No : DC-R140214
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 1 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output Input
Efficiency
Package
(%)
Vin Iin, no Iin, full
Model Number Regulation Typ.
Vout Iout Power R/N Max. Range
(mm)
Nom. load load
(Vdc) (A,Max.) (W) (mVp-p) (Vdc)
Line (%) Load (%) Min. Typ.
(Vdc) Typ.(mA) Typ.(A)
MYBSP0122BABF 12 2.125 25.5 150 ?0.1 ?0.1 48 42.5-57 3 0.57 90 92.5
22.4 x 35.5 x 10.55
MYBSP0055AABF 5 5.1 25.5 150 ?0.1 ?0.1 48 42.5-57 5 0.59 88 90.5
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 A B F
ON/OFF Control Logic
MURATA Standard
F = None
DC-DC Convertor
Isolated DC-DC Convertor
Pin Type
for PoE PD IEEE802.3at
B = Surface mount pin (MSL Rating 2)
Output Voltage
Nominal Input Voltage
012 = 12V
A = 48V nominal
005 = 5V
Output Current
2B = 2.125A
5A = 5.1A
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 2 of 16MYBSP Series
Isolated DC-DC converter for PoE+ PD
FUNCTIONAL SPECIFICATIONS, MYBSP0122BABF
ABSOLUTE MAXIMUM RATINGS Conditions Minimum Typical / Nominal Maximum Units
Input Voltage, Continuous 0 57 Vdc
Input Voltage, Transient 100ms max. duration 60 Vdc
Input to output, Leak current 1mA max
Isolation Voltage 2250 Vdc
for 1minute at +25 ?C/60%RH.
Output Power 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 42.5 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 O
Resistance for detection Vin=2.7 to 10.1V 24.9 kO
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,
3
Calculated MTBF 2476 Hours x 10
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 ?Sec
Dynamic Load Peak Deviation same as above ?200 mVdc
http://www.murata.com/ja-jp/products/power
MYBSP0122BABF A02 Page 3 of 16