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參數(shù)資料
| 型號： | AAT3132ITP-1-T1 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | High Efficiency 1.5X Fractional Charge Pump for White LED Applications |
| 中文描述： | 高效率1.5倍分?jǐn)?shù)電荷泵白光LED應(yīng)用 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 231K |
| 代理商： | AAT3132ITP-1-T1 |
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
3132.2005.12.1.4
7
Functional Block Diagram
1.5X
Charge
Pump
Soft-Start
Control
1MHz
Oscillator
Voltage
Reference
Quad
Output
DAC
Single
Output
DAC
Current
Reference
S
2
Cwire
Interface
32x16 bit
ROM
C1+
C1-
C2+
C2-
OUT
D1
D2
D3
D4
GND
EN/SET
VIN
32x16 bit
ROM
Functional Description
The AAT3132/32A is a high efficiency (1.5X) frac-
tional charge pump device intended for white LED
backlight applications. It consists of a 1.5X charge
pump with multiple current source outputs. To max-
imize power conversion efficiency, an internal feed-
back control sensing circuit monitors the voltage
required on the constant current source outputs.
The AAT3132/32A requires only four external
components: two 1μF ceramic capacitors for the
charge pump flying capacitors (C
1
and C
2
), one
1μF ceramic input capacitor (C
IN
), and one
0.33μF to 1μF ceramic output capacitor (C
OUT
).
The 1.5X charge pump output is converted into
three (D1 to D3) constant current outputs to drive
three individual LEDs with a maximum current of
20mA each, and one (D4) constant current output
with a maximum current of 25 or 30mA. The cur-
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| AAT3132ITP-T1 | High Efficiency 1.5X Fractional Charge Pump for White LED Applications |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT3132ITP-T1 | 制造商:Skyworks Solutions Inc 功能描述:LED Lighting Drivers High Efficiency 1.5x Fractional Chrg Pump |
| AAT3134 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications |
| AAT3134ISN-T1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications |
| AAT3140 | 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 White LED Applications |
| AAT3140_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 White LED Applications |
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