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參數(shù)資料
| 型號： | FAN5612S7X |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | JT 9C 9#12 SKT RECP |
| 中文描述： | LED DISPLAY DRIVER, PDSO6 |
| 封裝： | SC-88A, SC-70, 6 PIN |
| 文件頁數(shù)： | 8/12頁 |
| 文件大小： | 168K |
| 代理商： | FAN5612S7X |
FAN5611/FAN5612/FAN5613/FAN5614
PRODUCT SPECIFICATION
8
REV. 1.0.4 6/4/04
In some cases, there is already a voltage bus in the system,
which can be utilized. Due to the ultra-low voltage drop of
the FAN561X series of LED drivers to drive high V
F
white
or blue LEDs. The V
IN
needs to be only 300mV higher than
the highest V
F
in the circuit.
– V
DROP
< 0.3V
– V
F (at 20mA)
< 3.3V to 4.0V (High V
F
)
– V
IN (at 20mA)
=V
DROP
+ V
F
= 3.6V to 4.3V
– V
IN (at 5mA Typical)
~ 3.3V
Where V
IN
= Existing bus = 3.3V to 4.3V
Key advantages:
No boost circuit needed for LCD or keyboard backlight
Driver utilizes the existing bus
Ultra-low voltage drop provides the full 20mA LED
current at the lowest possible voltage level.
Example 3: Drive white, blue, red, amber LEDs
string
Assuming boost circuit, or existing voltage bus, the
FAN561X series of LED drivers can be used to drive a whole
string of LEDs and flexible brightness control - analog
and/or PWM.
– V
DROP
< 0.3V
– V
IN_MIN
= N
×
V
F
+ V
DROP
– V
IN _MAX
= N
×
V
F
+ 5.5V
Where V
IN
= Existing bus, boost voltage
Key advantage:
No need for current matching resistors and discrete
transistor for brightness control
LED Brightness Control
All of the FAN561X LED Drivers feature analog and PWM
controls to give designers flexible brightness control. These
control methods can be applied to the circuit in two different
ways, to provide more flexibility than any other solution. To
determine the value of R
SET
, use the “I
SET
vs. V
CTRL
” graph
under the Typical Performance Characteristics section.
1. FAN5611
- Analog
Set V
CONTROL
and R
SET
for LED current
- PWM
V
CONTROL
= PWM
– Amplitude sets maximum LED current
– Pulse width controls between 0 and maximum
2. FAN5612
- Analog
Set V
CONTROL
and R
SET
for LED current
- PWM - 1
V
CONTROL
= PWM
I
SET
R
SET
I1
I2
I3
I4
V
IN
GND
FAN5613
CTRL
V
CONTROL
ENABLE ON/OFF
V
IN
I
SET
R
SET
I1
I2
I3
I4
GND
FAN5613
CTRL
V
CONTROL
'N' number of LEDs Per Branch
ON/OFF
ENABLE
I
SET
R
SET
I1
I2
I3
I4
V
IN
GND
FAN5611
CTRL
V
CONTROL
(3V
)
I
LED
200
-------------------------------------------------------------------------
V
SET
V
–
(
)
×
=
R
SET
I1
I2
I3
V
IN
GND
FAN5612
CTRL
V
CONTROL
I
SET
ON/OFF
ENABLE
I
LED
200
------------------------------------------------–
V
R
SET
)
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FAN5613 | Low-Dropout LED Drivers for White, Blue or any Color LED |
| FAN5613MPX | Low-Dropout LED Drivers for White, Blue or any Color LED |
| FAN5614 | Low-Dropout LED Drivers for White, Blue or any Color LED |
| FAN5614S7X | Low-Dropout LED Drivers for White, Blue or any Color LED |
| FAN5631 | Regulated Step-Down Charge Pump DC/DC Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN5613 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Low-Dropout LED Drivers for White, Blue, or any Color LED |
| FAN5613MPX | 功能描述:LED照明驅(qū)動器 LDO LED Driver all Colors 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 |
| FAN5613MPX_Q | 功能描述:LED照明驅(qū)動器 LDO LED Driver all Colors 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 |
| FAN5614 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Low-Dropout LED Drivers for White, Blue or any Color LED |
| FAN5614S7X | 功能描述:LED照明驅(qū)動器 LDO LED Driver all Colors 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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