Typical Application Circuit
15V
R BOOT
D BOOT
600V
LIN
1 LIN
V B 8
HIN
2
HIN
HO 7
R1
Q1
C BOOT
R2
3
V CC
V S 6
C1
4 COM
LO 5
R3
Q2
Load
R4
FAN7380 Rev.03
Figure 1. Application Circuit for Fluorescent Lamp Ballast
Internal Block Diagram
UVLO
8
V B
NOISE
CANCELLER
R
S
R
Q
7
HO
HIN
2
SCHMITT TRIGGER
INPUT
HS(ON/OFF)
6
V S
SHOOT THOUGH
UVLO
3
V CC
LIN
1
PREVENTION
LS(ON/OFF)
DELAY
5
LO
{DEAD-TIME=100ns}
Figure 2. Functional Block Diagram of FAN7380
FAN7380 Rev.02
4
COM
? 2005 Fairchild Semiconductor Corporation
FAN7380 Rev. 1.0.5
2
www.fairchildsemi.com
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