FAN5109B Datasheet, PDF (2/14 Pages) Fairchild Semiconductor – Dual Bootstrapped 12V MOSFET Driver

Application Diagram
PWM 2
OD 3
Overlap
Protection
Circuit
Block Diagram
4 ^VCC
BOOT
1
Q1
HDRV
8
7 ^SW
V_{C C}
Q2
5 ^LDRV
6 ^PGND
Figure 1. Typical Application
OD
12V
D1
C_BOOT
C_{VC C}
L1
V
OU T
C_{O U T}
V_CC
VCC
BOOT
PWM
t_Fall
Delay
t_Fall
Delay
HDRV
V_CC/3 _1.2V
SW
1.2V
© 2006 Fairchild Semiconductor Corporation
FAN5109B Rev. 1.0.0
Figure 2. Functional Block Diagram
2 of 14
V_CC
LDRV
GND
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