AN2852 datasheet(32/35 Pages) STMICROELECTRONICS

Part #	AN2852

Description	This document describes the characteristics and performance of a 90 W wide range input

PDF	35 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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32 / 35 page

AHB transformer specifications

AN2852

32/35

Note:

Primaries A and B are in series

Cover wires ends with silicon sleeve

Figure 31.

Windings position

8.2

Mechanical aspect and pin numbering

●

Maximum height from PCB: 30 mm

●

Coil former type: vertical, low profile, 7+7 pins, NORWE ETD34lr/h14/-1/rtg

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Pin distance: 5.08 mm

●

Row distance: 25.4 mm

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Pin removed: # 7

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Manufacturer: Magnetica

●

P/N: 1754.0004

Figure 32.

Top view

Table 10.

Winding characteristics

Pins

Winding

RMS current

Nr. of turns

Wire type

2 – 3

Primary A

0.75 ARMS

Ø 0.355 mm – G2

9 – 10

Secondary 1

3.81 ARMS

Stranded 90 x Ø 0.1 mm – G1

12 – 14

Secondary 2

6.57 ARMS

Stranded 135 x Ø 0.1 mm – G1

3 – 4

Primary B

0.75 ARMS

Ø 0.355 mm – G2

5 – 6

Auxiliary

0.05 ARMS

3 spaced

Ø 0.355 mm – G2

AM01846v1

COIL FORMER

3mm

SECONDARY 1

PRIMARY

- A

SECONDARY 2

PRIMARY

- B

AUX

INSULATING

TAPE

AM01847v1

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