MPM81 Datasheet, PDF (14/15 Pages) Sanken electric – 2 A Non-Isolated Step-Down DC / DC Converter Modules

MPM8x Series 2 A Non-Isolated Step-Down DC/ DC Converter Modules
Cautions and Warnings
• The parallel operation to increase the current is not available.
• Thermal shutdown. The MPM01 has a thermal protection cir-
cuit. This circuit keeps the IC from overheating due to overload.
But this circuit cannot guarantee long-term reliability against
continuously overloaded status.
• Heat radiation and reliability. The reliability of an IC is insepa-
rable from the temperature in its operation. Careful consideration
should be given to heat radiation and a sufficient safety margin
must be allowed when designing a heatsink. When mounting
the MPM01 to the heatsink, be sure to apply silicone grease and
securely screw it. Please use one of the following greases we
suggest:
Type
G746
YG6260
SC102
Suppliers
Shin-Etsu Chemical Co., Ltd.
Momentive Performance Materials Inc.
Dow Corning Toray Co., Ltd.
• Cautions for mounting to heatsink. When the flatness around
screw holes is insufficient, such as when mounting the product
to the heatsink with extruded (burred) screw holes, the product
can be damaged even with a lower screw torque than the recom-
mended value. For mounting products, the mounting surface
flatness should be 0.05 mm or less.
Please select suitable screws for product shape. Do not use a flat-
head machine screw because of the stress to products. A tapping
screw is not recommended for the packages. When using tapping
screws, a screw may enter diagonally, not vertically, depending
on the conditions of hole before threading or the work situation.
That may stress on the products and may cause failures.
For tightening screws, if a tightening tool (such as a driver) hits
the product, the package may crack, and stress, which shortens
the element lifetimes and can cause the destruction, is put on
internally. Tightening with an air driver makes a large impact.
A screw torque higher than recommended torque can be applied
and the package may be damaged. Therefore, an electric driver
is recommended. When the package is secured at two or more
places, tighten with the specified torque, after pre-tightening with
a torque at all places. For using a driver, torque control is manda-
tory.
MPM80-DS, Rev. 0.1
SANKEN ELECTRIC CO., LTD.
14
March 11, 2013