AN2640 datasheet(27/36 Pages) STMICROELECTRONICS

Part #	AN2640

Description	Intelligent multipower digital ballast for fluorescent lamps

PDF	36 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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27 / 36 page

AN2640

Board description

27/36

BF421

500 mA 300 V

Small signal PNP transistor

BF420

500 mA 300 V

Small signal NPN transistor

R1, R2, R29

1 M

Ω

R10, R14

1 k

Ω - 1%

R13, R24, R30,

R49, R54

10 k

Ω - 1%

R16, R46

Ω

R18

Ω

0.6 W

R22

Ω

R23

Ω - 1%

1 W

R27

3.9 k

Ω - 1%

R28

820

Ω - 1%

R3, R4, R11, R12

750 k

Ω - 1%

R31, R32, R33

330 k

Ω - 1%

0.25 W

R34

120 k

Ω - 1%

0.2 5W

R35

Ω - 1%

0.25 W

R36

22 k

Ω - 1%

R37, R38, R39

220 k

Ω - 1%

0.25 W

R40

2.2 k

Ω

0.25 W

R41

2.2 k

Ω - 1%

R43, R44, R45

10 k

Ω

R48

3.3 k

Ω

18 k

Ω - 1%

R52

1.8 k

Ω

R53

1 M

Ω

27 k

Ω

R7, R19, R21

Ω

R8, R47, R51

47 k

Ω

0.5

Ω - 1%

1 W

2x47 mH at 0.5 A

EPCOS Current-compensated D core

choke Or. code B82731-M2501-A30

2 mH ± 5%

VOGT PFC choke EVD25

Part nr. SL0606301101

Table 3.

BOM (continued)

Item Qty

Reference

Part / value

Voltage Watt

Type

AN2640 Datasheet(PDF) 27 Page - STMicroelectronics

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