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© Coilcraft Inc. 2013

This product may not be used in medical or high

risk applications without prior Coilcraft approval.

Specification subject to change without notice.

Please check web site for latest information.

Document 357-1

Document 357-1 Revised 07/24/12

Transformer

1. When ordering, please specify

packaging code:

B0392-ALD

Packaging: D = 13

″ machine ready reel. EIA-481 embossed plastic

tape (200 parts per 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.

Output

Primary

Leakage

Pri/sec

Part

Output

Output

current

DCR max

isolation

power (W)

voltage (V)

(A rms)

min (µH)

max (µH)

(mOhms)

(Vdc)

B0392-AL_

100

3.3

30.0

65.0

0.22

Primary: 13.5

1500

Secondary: 0.4

Planar Magnetics

This planar transformer and planar inductor pair is de-

signed specifically for the Texas Instruments UCC3580

family of PWM controllers.

The B0392-AL transformer is engineered for use in single

switch, forward topologies operating at 300 kHz. It is ideal

for use in high-current telecom power supply applications

that require high efficiency in a low-profile package.

The main winding of the B0434-AL inductor serves as an

output choke, while the auxiliary winding controls input

current to the PWM.

Request free evaluation samples by contacting Coilcraft

or visiting

www.coilcraft.com.

For Texas Instruments

UCC3580

1

2

4

3

Pri

6 :1

Sec

0.800

20,32

Recommended

Land Pattern

0.200

5,08

0.125

3,18

0.290

7,37

Ø

0.110

2,79

Ø

0.080

2,03

0.810

20,57

max

0.920

23,37

max

0.006 /0,15

1

1

3

3

2

2

4

4

0.340

8,64

max

Parts manufactured prior

to December 2011 may

be marked differently.

2. Inductance measured on an Agilent/HP 4284 between pins 1 and 2 at

250 kHz, 0.1 Vrms, 0 Adc.

3. Leakage inductance measured between pins 1 and 2 at 100 kHz, 0.1Vrms,

0 Adc with secondary pins shorted.

4. Electrical specifications at 25°C.

Refer to Doc 362 “Soldering Surface Mount Components” before soldering.

Dimensions are in

inches

mm