Coilcraft B0860-CL Planar transformer Datasheet

Document 426
Planar Transformer
For Maxim MAX5069A
PWM Controller
The B0860-C is approved by Maxim for use with their
MAX5069A high-frequency, current-mode, pulse-width
modulation (PWM) controller.
This planar transformer can be used in push-pull, halfbridge and full-bridge topologies. It is ideal for use in
high-current, isolated or nonisolated power supply applications. It offers high efficiency in a low-profile package
and features split primary and secondary windings, a
separate auxiliary winding and 1500 Vdc primary to secondary isolation.
Coilcraft’s Planar Prototyping Kit C356 was used to
design this transformer. No tooling or additional parts
were required. To order the kit, contact Coilcraft or
purchase on-line at http://order.coilcraft.com.
Free evaluation samples of B0860-C are available by
contacting Coilcraft or by visiting www.coilcraft.com.
Part
Output
number1 power (W)
B0860-CL_
180
Input
voltage
range (V)
36 – 72
Output
voltage
nom (V)
12
Output
current
(A peak)
15
Primary
inductance2
min (µH)
187.0
1. When ordering, specify a packaging code:
B0860-CLD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape (200per full reel).
B = Less than full reel. In tape, but not machine ready. To
have a leader and trailer added ($25 charge), use
code letter D instead.
Dot indicates pin 1
10
1
0.095
2,41
DCR max
(mOhms)
Pri: 38.0
Sec: 4.0
Aux: 120.0
Turns ratio4
pri : sec pri : aux
10 : 4
10 : 3
2. Inductance measured on an Agilent/HP 4284 between pins 2 and 4 at
250 kHz, 0.1 Vrms, 0 Adc.
3. Leakage inductance measured between pins 2 and 4 at 250 kHz,
0.1 Vrms, 0 Adc with pins 6, 8 and 10 shorted.
4. Turns ratio is with the primary windings and secondary windings
connected in series.
5. Storage and ambient operating temperature range: –40°C to +85°C.
6. Electrical specifications at 25°C.
0.800
20,32
2
6
3
8 Sec
4
10
10
1
0.250
6,35
2
0.810 max
3
20,57
Leakage
inductance3
max (µH)
0.25
Pri
8
4
5
5
6
0.080
Ø
2,03
6
Recommended
Land Pattern
0.920
max
23,37
0.110
Ø
2,79
1
Aux
5
0.360 max
9,14
0.006 /0,15
Weight:
11.8 g
Terminations: Matte tin over nickel over brass
Tape and reel: 200/13″ reel 44 mm tape width
Specifications subject to change without notice.
Please check our website for latest information.
© Coilcraft, Inc. 2007
Document 426
Revised 05/10/07
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