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Número de pieza
componentes Descripción
FAN7547AMXC Ver la hoja de datos (PDF) - Fairchild Semiconductor
Número de pieza
componentes Descripción
Fabricante
FAN7547AMXC
LCD Backlight Inverter Drive IC
Fairchild Semiconductor
FAN7547AMXC Datasheet PDF : 9 Pages
1
2
3
4
5
6
7
8
9
Internal Block Diagram
OUT
V
ref
V
CC
S/S
RCT
V
DS
SW
V
Z
UVLO
5V
1.3V
0.1V
Oscillator
V
ref
3V
Internal
Bias
Output
Driver
QR
S
Comparator1
V
Z
2
μ
A
3.7V
Comparator3
V
CC
40
μ
A
Comparator2
Buffer
Amplifier
V
CC
1
SDP
OSC
COMP
FB
120
μ
A
7V
V
b
Comparator4
V
a
V
ref
Comparator5
V
ref
OLP
Dimming Control and Mode Selection Block
Analog
PWM
Mixed
2V
Comparator6
50k
Ω
V
ms
50k
Ω
Full Lighting when V
DS
= 3V
Figure 1. Functional Block Diagram of FAN7547A
1V
GND
FAN7547A Rev. 1.01
© 2005 Fairchild Semiconductor Corporation
FAN7547A Rev. 1.0.3
2
www.fairchildsemi.com
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