PRODUCT DATA SHEET
PLANAR POWER TRANSFORMER
Features
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Planar windings
4mm height above PCB
Low leakage inductance
High frequency operation
Externally configurable
18–70V input capability
Auxiliary winding
Lead-free (Pb-free)
P6140
Applications
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DC-DC converters
Flyback converters
48V or 24V systems
15V @ 1A output
5V @ 3A output
DESCRIPTION
P6140 is a planar power transformer using
multilayer PCB technology. It is intended for low
profile high frequency discontinuous flyback DC-DC
converters up to 500kHz. With careful design, output
power exceeding 20W is achievable.
P6140 has split primaries that can be configured in
series or parallel for nominal 48V and 24V systems
respectively, with nominal 15V output. The
recommended input voltage range is 18V to 70V.
Additionally, an auxiliary winding is provided on the
primary side.
The contacts to the host circuit board are made
by solder connection to large plated-through
holes in the P6140 PCB, thus ensuring low
resistance connection. The ferrite is intended to
sit within a PCB cut-out, giving a height above
board of 4mm.
P6140 is lead-free (Pb-free) and suitable for
conventional and lead-free processing.
ETALDOC 855/2
Page 1 of 4
August 2004