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參數(shù)資料
| 型號： | AAT3129 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | High Efficiency 1X/1.5X/2X Charge Pump for RGB Color LED Applications |
| 中文描述： | 高效率1x/1.5x/2x充電泵為RGB顏色LED應用 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大小： | 433K |
| 代理商： | AAT3129 |
AAT3129
High Efficiency 1X/1.5X/2X Charge Pump
for RGB Color LED Applications
3129.2007.01.1.4
1
ChargePump
General Description
The AAT3129 is a high efficiency charge pump
DC/DC converter with tri-mode load switch (1X)
fractional (1.5X) and doubling (2X) conversion for
color LED applications. Asingle current source out-
put provides a regulated current to drive R, G, and
B LEDs via three internal switches. With a simple
single wire serial bus, the RGB module can be eas-
ily controlled to display 4096 colors.
AnalogicTech's Advanced Simple Serial Control
(AS
2
Cwire) serial digital input is used to enable,
disable, and set the duty cycle of each internal
MOSFET switch. Low external parts count (two
1
μ
F flying capacitors and two small bypass capac-
itors at V
IN
and OUT) makes the AAT3129 ideally
suited for small battery-powered applications.
The AAT3129 has a thermal management system
to protect the device in the event of a short-circuit
condition on any of the output pins. Built-in soft-
start circuitry prevents excessive inrush current
during start-up. High switching frequency enables
the use of small external capacitors. A low current
shutdown feature disconnects the load from V
IN
and reduces quiescent current to less than 1
μ
A.
The AAT3129 is available in a Pb-free, 12-pin
TSOPJW package.
Features
V
IN
Range: 2.7V to 5.5V
Common Anode RGB LED Control
4096 Color with Single Wire Digital Control
40mA to 180mA Fixed Current Source
AS
2
Cwire Digital Brightness Control
Low Noise Constant Frequency Operation
Small Application Circuit
Regulated Output Current
No Inductors
1MHz Switching Frequency
I
Q
<1
μ
A in Shutdown
12-Pin TSOPJW Package
Applications
Fashion RGBs
Mobile Handsets
MP3 Players
PDAs
Portable Devices
RGB Color LEDs
RGB Photo Flash
Smart Phones
Typical Application
C
IN
1
μ
F
V
BAT
C
CP
1
μ
F
C1
1
μ
F
C2
1
μ
F
VIN
CP
C1+
C1-
C2+
C2-
DR
DG
DB
EN/SET
EN/SET
GND
AAT3129
G
R
B
ISRC
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AAT3129_07 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Efficiency 1X/1.5X/2X Charge Pump for RGB Color LED Applications |
| aat3129itp-60-db1 | 制造商:Skyworks Solutions Inc 功能描述:AAT3129 Series Efficient 1X/1.5X/2X Charge Pump for RGB Color LED Eval Board |
| AAT3129ITP-60-T1 | 制造商:Skyworks Solutions Inc 功能描述:AAT3129 Series 1 MHz 60 mA 1X/1.5X/2X Charge Pump for RGB Color LED -TSOP-12 制造商:Skyworks Solutions Inc 功能描述:LED Lighting Drivers High Efficiency Charge Pump 制造商:Skyworks Solutions Inc 功能描述:LED DRIVER IC |
| AAT3131 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications |
| AAT3131_08 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications |
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