Table 2. EVAL6561-80 Evaluation Results

Pin (W)

η (%)

w/o THD reducer

with THD reducer

PF

THD (%)

PF

THD (%)

85

87.2

400.1

14

80.7

92.8

0.999

3.7

0.999

2.9

110

85.2

400.1

14

80.7

94.7

0.996

5.0

0.996

3.2

135

84.2

400.1

14

80.7

95.8

0.989

6.2

0.989

3.7

175

83.5

400.1

14

80.7

96.6

0.976

8.3

0.976

4.3

220

83.1

400.1

14

80.7

97.1

0.940

10.7

0.941

5.6

265

82.9

400.1

14

80.7

97.3

0.890

13.7

0.893

8.1

NTC

2.5

Ω

8

3

BRIDGE

W04M

R1

750 k

Ω

C1

1 µF

400V

R3

10 k

Ω

C29

22 µF

25V

FUSE

4A/250V

R4

180 k

Ω

D8

1N4150

D2

1N5248B

R14

100

Ω

C5 12 nF

R6

68 k

Ω

T

5

6

L6561

7

21

R7

33

Ω

MOS

STP8NM50

4

R11

750 k

Ω

C6

47 µF

450V

Vo=400V

Po=80W

-

Vac

(85V to 265V)

R9

0.41

Ω

1W

R13

9.53 k

Ω

+

-

C4

100 nF

C2

10nF

D1

STTH1L06

D3 1N4148

C7

10 µF

35 V

R15

220

Ω

R16

91 k

Ω

R50 12 k

Ω

C3 470 nF

R2

750 k

Ω

R5

180 k

Ω

R10

0.41

Ω

1W

R12

750 k

Ω

C23

1 µF

Boost Inductor Spec (ITACOIL E2543/E)

E25x13x7 core, 3C85 ferrite

1.5 mm gap for 0.7 mH primary inductance

Primary: 105 turns 20x0.1 mm

Secondary: 11 turns 0.1mm

THD REDUCER (optional)

Figure 13. 80W, Wide Range Demonstration Board(EVAL6561-80): Electrical Circuit

Figure 14. EVAL6561-80: PCB and Component Layout (Top view, real size 57x108mm)

AN966 APPLICATION NOTE

17/21