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5-lead SOT-23 Package
Description
The FAN5332A is an LED driver that features 鏗亁ed frequency
mode operation and an integrated FET switch. The device鈥檚
high output power makes it suitable to drive 鏗俛sh LEDs in serial
connections. This device is designed to operate at high switch-
ing frequencies in order to minimize switching noise measured
at the battery terminal of hand-held communications equipment.
Quiescent current in both normal and shutdown mode is
designed to be minimal in order to extend battery life. Normal or
shutdown mode can be selected by a logic level shutdown cir-
cuitry.
The low ON-resistance of the internal N-channel switch ensures
high ef鏗乧iency and low power dissipation. A cycle-by-cycle cur-
rent limit circuit keeps the peak current of the switch below a
typical value of 1.5A. The FAN5332A is available in a 5-lead
SOT23 package.
Applications
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Cell Phones
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PDAs
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Handheld Equipment
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Display Bias
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LED Bias
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Flash LED
Typical Application
V
IN
C
IN
10碌F
5
1
R1
C
F
82pF
2.7V to 5.5V
L
6.8碌H
BAT54
C
OUT
2.2碌F
V
OUT
FAN5332A
V
IN
SW
FB
3
R2
ON
OFF
4
SHDN
GND
2
Figure 1. Typical Application Diagram
漏2004 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
FAN5332A Rev. 1.0.1
FAN5332A相關(guān)型號PDF文件下載
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