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參數(shù)資料
| 型號： | FAN5606DMPX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | Serial LED Driver with Current-Regulated, Step-Up DC/DC Converter |
| 中文描述： | LED DISPLAY DRIVER, DSO8 |
| 封裝： | 3 X 3 MM, MO-229VEEC, MLP-8 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大?。?/td> | 112K |
| 代理商： | FAN5606DMPX |
PRODUCT SPECIFICATION
FAN5606
REV. 1.0.3 1/7/05
5
Where
If the analog input A is driven in digital mode by an open
drain output, it is important to choose the appropriate value
of the pull-up resistor. Its resistance should be low enough to
ensure less than 0.7V dropout, hence VA > (VIN–0.7V), as
required for HIGH logic level:
Pulse-Width-Modulation (PWM) Control
A variable duty cycle (
δ
should be taken not to use a too low frequency, otherwise a
flickering effect may occur. The minimum range is 100Hz to
1KHz. For a maximum range of LED current, both A and B
inputs can be modulated at the same time.
) can modulate any DAC input. Care
Open Circuit Protection
A built-in over voltage protection circuit prevents the device
from being damaged when it is powered up with no load.
This circuit reduces the boost converter duty cycle, to a min-
imum thus limiting the output voltage to a safe value when
no load condition is detected. However, the FAN5606 can be
damaged when a full load (Six LEDs driven by 20mA) is
suddenly disconnected from V
against this unlikely event, an external 24 V Zener diode can
be connected between V
OUT
and GND.
OUT
. To protect the FAN5606
Shutdown Mode
The device can be disabled by applying LOW logic level
voltage to the A and B inputs. In Shutdown mode the supply
current is reduced to less than 1
μ
A.
V
Ref
1.22V
=
0
1.25
5
10
15
20
25
1.5
1.75
2
2.25
2.5
2.75
3
3.25
3.5
V
External
(V)
I
L
(
R=10Kohm
R=100kohm
Rpull-up
60
A
700mV
<
11k
=
PWM Control
1. A is PWM Controlled, B is Low.
I
LED
(Average) =
δ
x 5mA, where
δ
is Duty Cycle. (Note 4
)
2. A is High and B is PWM.
I
LED
(Average) =
5mA +
δ
x 15mA, where
δ
is Duty Cycle.(Note 5, 6)
1KHz
1KHz
s
s
s
D 30%
D 70%
A Input (PWM)
B Input (0)
s
OFF
ILED
0mA
I
LED
(Average)
= 0.3 x 5mA = 1.5mA
I
LED
(Average)
= 0.7 x 5mA = 3.5mA
B Input (PWM)
1KHz
1KHz
s
s
s
s
D 30%
D 70%
A Input
s
OFF
ILED
0mA
I
LED
(Average)
= 0.3 x 20mA + 0.7 x 5mA = 9.5mA
I
LED
(Average)
= 0.7 x 20mA + 0.3 x 5mA = 15.5mA
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| FAN5607 | LED Driver with Adaptive Charge Pump DC/DC Converter |
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| FAN5608MPX | Serial/Parallel LED Driver with Current-Regulated, Step-Up DC/DC Converter |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| FAN5608 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Serial / Parallel LED Driver with Current-Regulated, Step-Up DC/DC Converter |
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