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參數(shù)資料
| 型號： | AAT3114AISN-20-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | High Efficiency 1.5X Fractional Charge Pumps For White LED Applications |
| 中文描述： | 高效率1.5倍分數(shù)電荷泵為白光LED應用 |
| 文件頁數(shù)： | 13/15頁 |
| 文件大?。?/td> | 331K |
| 代理商： | AAT3114AISN-20-T1 |
Driving white LED display module backlights
and individual white LEDs connected in parallel:
The AAT3114/14A D1 to D6 outputs are true con-
stant current sources capable of driving up to 20mA
each over the operation input voltage range. Since
these outputs are true constant current sources,
they may be connected in parallel to drive a single
power output. Any combination of outputs (D1 to
D6) may be connected in parallel. The maximum
total output current is a sum of parallel-connected
current sources. This feature is particularly useful
to power pre-manufactured display modules that are
pre-wired with white LED backlights connected in a
parallel circuit configuration. All outputs can be con-
nected in parallel to drive groups of LEDs as well.
The internal current source reference circuit bases
feedback from current sensed on the D1 output. For
best operation, the only requirement for this applica-
tion is that the output D1 should always be connect-
ed to the load circuit.
AAT3113, AAT3114/14A
High Efficiency 1.5X Fractional Charge
Pumps For White LED Applications
3113.2006.07.1.9
13
AAT3114/14A Application Driving a Display Module With Six Parallel-Connected White LEDs:
AAT3114/14A Dual Backlight Control Circuit:
C
IN
1
μ
F
V
BATTERY
C
OUT
1
μ
F
EN/SET
C1
1
μ
F
C2
1
μ
F
D2
D3
D4
VIN
OUT
C1+
C1-
C2+
C2-
D1
D2
D3
D4
D5
D6
EN/SET
GND
AAT3114/14A
D1
D5
D6
Enable Display Backlight
Enable Keyboard Backlight
Display Backlight
Keyboard Backlight
C
IN
1
μ
F
V
BATTERY
C
OUT
1
μ
F
EN/SET
C1
1
μ
F
C2
1
μ
F
D2
D3
D4
D5
VIN
OUT
C1+
C1-
C2+
C2-
D1
D2
D3
D4
D5
D6
EN/SET
GND
AAT3114/14A
D1
D6
Display Module
R1
R2
R3
R4
R5
R6
Resistor R is optional
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AAT3114ISN | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Efficiency 1.5X Fractional Charge Pumps For White LED Applications |
| AAT3114ISN-20-T1 | 制造商:Skyworks Solutions Inc 功能描述:FRACT CHPMP FOR WHT LED, QFN44-1 TR 制造商:Skyworks Solutions Inc 功能描述:LED DRIVER IC |
| AAT3119 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Efficiency 2X Charge Pump |
| AAT3119_07 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Efficiency 2X Charge Pump |
| AAT3119IJS-4.5-T1 | 制造商:Skyworks Solutions Inc 功能描述:LED Lighting Drivers High Efficiency 2X Charge Pump |
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