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參數(shù)資料
| 型號： | FAN5606 |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | Serial LED Driver with Current-Regulated, Step-Up DC/DC Converter |
| 中文描述： | 串行LED驅(qū)動電流調(diào)節(jié)，升壓型DC / DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 112K |
| 代理商： | FAN5606 |
FAN5606
PRODUCT SPECIFICATION
4
REV. 1.0.3 1/7/05
COIL DRIVER
DBB
START-UP
POWER GOOD
LINEAR REGULATOR
OSC
REF
DAC
BG
VIN
VOUT
GND
B
A
CAT
IND
AMPLIFIER
Block Diagram
Circuit Description
When the input voltage is connected to V
turned on, the bandgap reference acquires its nominal volt-
age and the soft-start cycle begins. Once "power good" is
achieved (0.5mA in the diodes), the soft-start cycle stops and
the boost voltage increases to generate the desired current
selected by the input control pins.
IN
pin, the system is
The FAN5606 DC/DC converter automatically adjusts its
internal duty cycle to achieve high efficiency. If the output
external capacitor is shorted, the Schottky diode can be dam-
aged, therefore such a condition should be avoided.
LED Brightness Control
The inputs A and B can be digitally controlled LOW (GND)
and HIGH (V
CC
) signals. In analog mode, A input is con-
nected to an external stable voltage source via an external
resistor and B input is connected to ground. The current
flowing through the resistor is scaled by a factor of approxi-
mately 1000.
Digital Control
The FAN5606’s digital decoder allows selection of the fol-
lowing modes of operation: OFF, 5mA, 10mA, 20mA per
branch.
Analog Control with PWM
In analog control mode, the LED current can go up to 25mA.
Input A is used to control the LED currents. Input B should
be connected to GND (logic level "0"). An external resistor
(R) is connected from A to a stable voltage source (V
) to control the LED current, I
the formula or the graph below:
V
V
–
R
EXTER-
NAL
LED
. The I
LED
is given by
A
B
0
0
1
0
0
1
1
1
I
LED
OFF
5mA
10mA
20mA
I
LED
-----------------------------------------
Multiplication Ratio
×
=
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PDF描述 |
|---|---|
| FAN5606DMPX | Serial LED Driver with Current-Regulated, Step-Up DC/DC Converter |
| FAN5607 | LED Driver with Adaptive Charge Pump DC/DC Converter |
| FAN5607HMPX | LED Driver with Adaptive Charge Pump DC/DC Converter |
| FAN5608DMPX | Serial/Parallel LED Driver with Current-Regulated, Step-Up DC/DC Converter |
| FAN5608MPX | Serial/Parallel LED Driver with Current-Regulated, Step-Up DC/DC Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN5606DMPX | 功能描述:LED照明驅(qū)動器 Serial LED Driver DC/DC UP Converter RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| FAN5606DMPX_Q | 功能描述:LED照明驅(qū)動器 Serial LED Driver DC/DC UP Converter RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| FAN5607 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:LED Driver with Adaptive Charge Pump DC/DC Converter |
| FAN5607_AEA3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN5607HMPX | 功能描述:LED照明驅(qū)動器 LED Driver w/ Adap Charge Pump DC/DC RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
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