AN3233 datasheet(33/35 Pages) STMICROELECTRONICS

33 / 35 page

AN3233

Transformer specifications

Doc ID 17595 Rev 1

33/35

Mechanical aspect and pin numbering

●

Maximum height from PCB: 30 mm

●

Coil former type: horizontal, 7+7 pins (pins #3 and #5 are removed)

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Pin distance: 5.08 mm

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Row distance: 25.4 mm.

Manufacturer

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Magnetica - Italy

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Transformer P/N: 1860.0034

Table 8.

Transformer winding data

Pins

Winding

RMS current

Number of turns

Wire type

2 - 4

PRIMARY

1.2 ARMS

φ 0.1 mm – G1

8 - 11

SEC-1A4

5 ARMS

290

φ 0.1 mm – G1

9 -10

SEC-1B4

5 ARMS

290

φ 0.1 mm – G1

10 - 13

SEC-2A(1)

Secondary windings A and B are in parallel

5 ARMS

290

φ 0.1 mm – G1

12 - 14

SEC-2B4

5 ARMS

290

φ 0.1 mm – G1

6 - 7

AUX(2)

Aux winding is wound on top of primary winding

0.05 ARMS

φ 0.28 mm– G2

Figure 28.

Transformer overall drawing

QUOTES IN MILLIMETERS

, DRAWING NOT IN SCALE

3 MIN

30 MAX

39 MAX

25.4

39 MAX

LABEL

5.08

PIN SIDE VIEW

14 13 12 11 10 9

Ø1.1 (x12) / PCB hole Ø1.6

MISSING PIN

3 AND 5

PCB REFERENCE

AN3233 Datasheet(PDF) 33 Page - STMicroelectronics

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