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參數(shù)資料
| 型號： | AAT3129ITP-60-T1 |
| 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)： | 13/15頁 |
| 文件大?。?/td> | 433K |
| 代理商： | AAT3129ITP-60-T1 |
AAT3129
High Efficiency 1X/1.5X/2X Charge Pump
for RGB Color LED Applications
3129.2007.01.1.4
13
Ceramic Capacitor Materials
Ceramic capacitors less than 0.1
μ
F are typically
made from NPO or C0G materials. NPO and C0G
materials typically have tight tolerance and are sta-
ble over temperature. Larger capacitor values are
typically composed of X7R, X5R, Z5U, or Y5V
dielectric materials. Large ceramic capacitors, typi-
cally greater than 2.2
μ
F, are often available in low-
cost Y5V and Z5U dielectrics, but capacitors
greater than 1
μ
F are typically not required for
AAT3129 applications.
Capacitor area is another contributor to ESR.
Capacitors that are physically large will have a
lower ESR when compared to a smaller capacitor
made from an equivalent material. These larger
devices can improve circuit transient response
when compared to an equal value capacitor in a
smaller package size.
Layout Considerations
The AAT3129 is a high-performance device that
operates with a high switching frequency. To ensure
optimal device performance and accommodate the
fast transients generated by the AAT3129 special
attention should be given to the board layout.
The recommended layout is illustrated in Figure 1.
The traces connecting C1 and C2 experience fast
current transients. As a result, the trace lengths for
C1 and C2 should be minimized by placing the
components as closely as possible to the IC. This
will minimize path resistance and reduce ringing
due to the inductance associated with trace length.
For best IC performance, C
IN
and C
OUT
are placed
as closely as possible to the IN and CP pins and
are connected to a solid ground.
Figure 1: Optimal PCB Layout.
GND
GND
C1
C2
CIN
COUT
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| AAT3131ITP-T1 | 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 |
| AAT3132 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Efficiency 1.5X Fractional Charge Pump for White LED Applications |
| AAT3132A | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Efficiency 1.5X Fractional Charge Pump for White LED Applications |
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