AN2929 datasheet(7/32 Pages) STMICROELECTRONICS

Numer części	AN2929

Szczegółowy opis	In consumer applications such as LCD or plasma TVs

PDF	32 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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7 / 32 page

AN2929

Board description

Doc ID 15333 Rev 2

7/32

1.3

Transformer

The transformer characteristics are listed in the table below.

Reference

Part

Description

Manufacturer

750871111

Switch-mode power transformer

Würth Elektronik

BU15-4530R4BL

Common-mode choke

Coilcraft

VIPER27LN

Offline high-voltage converters

STMicroelectronics

VR1

TS431AIZ-AP

Voltage reference

STMicroelectronics

Table 2.

Bill of material (continued)

Table 3.

Transformer characteristics

Properties

Test condition

Value

Manufacturer

Würth Elektronik

Part number

750871111

Primary inductance

Measured at 10 kHz 0.1 V

1.7 mH ± 10%

Leakage inductance

Measured at 100 kHz 0.1 V

60 μH

Primary-to-secondary turn

ratio (6 - 4)/(7, 9 – 12, 14)

Measured at 10 kHz 0.1 V

13.5 ± 3%

Primary-to-auxiliary turn

ratio (6 - 4)/(3 - 1)

Measured at 10k Hz 0.1 V

5.19 ± 3%

Insulation

Primary to secondary

4 kV

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