Application examples and ideas

L6563 - L6563A

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Figure 52. Demagnetization sensing without auxiliary winding

Figure 53. Enhanced turn-off for big MOSFET driving

Figure 51. 350W, wide-range-mains PFC pre-regulator with fixed output voltage and FOT control

14

3

B1

KBU8M

R1A

620 k

Ω

C1

1 µF

400V

C2

1 µF

FUSE

8A/250V

R8

1.5 k

Ω

11

12

L6563

13

21

M1A

STP12NM50

4

C11

220 µF

450 V

Vout =400V

Pout = 350W

Vac

88V

to

264V

R12A,B,C

0.33

Ω

1 W

+

-

C3

10nF

D2

STTH806DTI

R9 6.8

Ω

C5

1 µF

R1B

620 k

Ω

R2

10 k

Ω

D3 1N4148

D5

1N4148

R7

12 k

Ω

C7

560 pF

C6 330 pF

NTC1

2.5

Ω

D1

1N5406

C9

470 nF

630 V

R5

6.8 k

Ω

R10 6.8

Ω

D4

1N4148

M1B

STP12NM50

R6

1.5 k

Ω

TR1

BC557

L1

R15A

1.87 M

Ω

R16

20 k

Ω

R15B

1.87 M

Ω

6

7

5

R3

390 k

Ω

C4

470nF

9

8

9

C10

10 nF

10

C8

330 pF

R11 330

Ω

R13A

1 M

Ω

R14

12.7 k

Ω

R13B

1 M

Ω

R4

1 M

Ω

Vcc

10.3 to 22 V

L1: coreE42*21*15, B2material

1.9 mmair gapon centreleg, mainwinding

inductance 0.55mH

58 Tof 20x AWG32 (

∅0.2mm)

13

12

14

GD

GND

DRIVER

Vcc

Q

L6563

L6563A

Rs

BC327

13

12

14

GD

GND

DRIVER

Vcc

Q

L6563

L6563A

Rs

BC327