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參數(shù)資料
| 型號： | ECJ-3YB1E474K |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | High Efficiency Serial LED Driver with 30V Integrated Switch |
| 中文描述： | 高效率串行LED驅(qū)動器30V的集成開關(guān) |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 520K |
| 代理商： | ECJ-3YB1E474K |
2005 Fairchild Semiconductor Corporation
FAN5330 Rev. 1.0.1
1
www.fairchildsemi.com
August 2005
F
FAN5330
High Efficiency Serial LED Driver with 30V Integrated
Switch
Features
■
1.5MHz Switching Frequency
Low Noise
Adjustable Output Voltage
0.7W Output Power Capability
Low Shutdown Current: <1μA
Cycle-by-Cycle Current Limit
Low Feedback Voltage (110mV)
Over-Voltage Protection
Fixed-Frequency PWM Operation
Internal Compensation
Thermal Shutdown
5-Lead SOT23 Package
■
■
■
■
■
■
■
■
■
■
■
Applications
■
Cell Phones
PDAs
Handheld Equipment
Display Bias
LED Bias
■
■
■
■
Description
The FAN5330 is an LED driver that features fixed frequency
mode operation and an integrated FET switch. This device is
designed to operate at high switching 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 circuitry.
The low ON-resistance of the internal N-channel switch ensures
high efficiency 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 FAN5330 is available in a 5-lead
SOT23 package.
Typical Application
Figure 1. Typical Application Diagram
SHDN
V
IN
V
OUT
R
GND
IN
FB
SW
C
IN
2.2
μ
F
6.8μ
H to 10
μ
H
1
3
2
4
5
C
OUT
L
BAT54
I
LED
0.47
μ
F
ON
OFF
F
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