Preliminary
MYBSP01201ABF
Isolated DC-DC converter for PoE PD
Detection and Hardware Classification
Functional Specifications
DC-DC converter implements IEEE 802.3af 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)
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
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)
3. Undersea equipment
4. Power plant control equipment
5. Medical equipment
Please check with your application.
6. Transportation equipment (cars, buses, trucks, trains, ships, etc.)
7. Traffic signal equipment
SMT Reflow Soldering Guidelines
The surface-mount reflow solder profile is shown below.
This graph should be used only as a guideline.
8. Disaster prevention /crime prevention equipment
9. Data-processing equipment
10. Application of similar complexity and /or reliability listed as
above.
Reflow Soldering Profiles : JEDEC IPC/JEDE J-STD-020D
Storage
Soldering temperature
Soldering time
Heating time
245°C +0/-5°C
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).
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.
Preheat time
Programming rate
Descending rate
Total soldering time
Time
8 minutes max.,25°C-245°C
1time
245℃
217℃
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:
200℃
150℃
60-150 seconds
60-120 seconds
(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.
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.
(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.
http://www.murata.com/en-global/products/power
MYBSP01201ABF A01 Page 10 of 11
