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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)： | 12/15頁 |
| 文件大?。?/td> | 331K |
| 代理商： | AAT3114AISN-20-T1 |
AAT3113, AAT3114/14A
High Efficiency 1.5X Fractional Charge
Pumps For White LED Applications
12
3113.2006.07.1.9
Application Circuits
Typical AAT3113 Application Circuit:
C
IN
1
μ
F
V
BATTERY
C
OUT
1
μ
F
EN/SET
C1
1
μ
F
C2
1
μ
F
D4
D3
D2
D1
VIN
OUT
C1+
C1-
C2+
C2-
D1
D2
D3
D4
EN/SET
GND
AAT3113
ON/1
T
HI
> 50ns
50ns minimum to enable
300ns < T
LO
< 75
μ
s
2
3
4
5
6
n
(n < =32)
OFF
Enable / Disable / LED Brightness Level Set Data Input
Test Current/Channel Disable
Each channel of the output is equipped with a test
current function. The AAT3113 and AAT3114 use a
small (~2μA) current source injected into each out-
put pin to detect the presence of an LED. Unused
channels that are tied to ground or LED load fail
short will be automatically diasbled instead of wast-
ing the programmed output current. The test current
in the AAT3114A is higher (~150μA) to accommo-
date LEDs with lower impedance in failure mode.
Thermal Protection
The AAT3113 and AAT3114/14A have a thermal
protection circuit that will shut down the charge
pump and current outputs if the die temperature
rises above the thermal limit. However, thermal
resistance of the QFN package is so low that if, in
the case of the AAT3114/14A, all six outputs are
shorted to ground at maximum 20mA output level,
the die temperature will not rise sufficiently to trip
the thermal protection. The thermal protection will
only trip if C
OUT
is shorted to ground and the ambi-
ent temperature is high.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 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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