L6567 datasheet(12/15 Pages) STMICROELECTRONICS

部件名	L6567

功能描述	HIGH VOLTAGE DRIVER FOR CFL

PDF	15 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

12 / 15 page

L6567

12/15

Figure 11. Frequency vs IRHV @CF= 150pF

Figure 12. FMIN: measurements and calculations

Figure 13. FFEED FORWARD: measurements and

calculations

0.20

0.40

0.60

0.80

1.00

1.20

Ir h v [m A ]

20.00

40.00

60.00

80.00

Rref= 20 K

Rref= 22 K

Rr ef= 24 K

R re f= 27K

R re f= 30K

R r ef= 33K

Rr ef= 36 K

R r ef= 39K

Rr ef=4 3 K, 47K , 51 K

20 .0 0

30.00

40.00

50 .0 0

R ref [ K ohm ]

0.00

20 .0 0

40 .0 0

60 .0 0

80 .0 0

100.00

C f= 82pF

C f=100p F

C f=120pF

C f=15 0pF

m eas ura m ents

F m in= 1/(8 *C f*R ref)

0. 40

0 .60

0.80

1. 00

1.2 0

Irh v [ m A ]

0. 00

10000. 00

20000. 00

30000. 00

40000. 00

50000. 00

60000. 00

70000. 00

80000. 00

90000. 00

100000. 00

110000. 00

120000. 00

m eas u re m en ts

c a lc ulatio ns ( 1/121)*Ir hv /C f

Cf= 8 2pF

Cf= 1 00p F

C f= 120pF

Cf= 1 50p F

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