參數(shù)資料
型號(hào)： AAT3123A
廠商： Advanced Analog Technology,lnc.
英文描述： High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
中文描述： 高效率電荷泵分?jǐn)?shù)電荷泵白光LED應(yīng)用
文件頁(yè)數(shù)： 14/18頁(yè)
文件大小： 325K
代理商： AAT3123A
AAT3123/23A/24
High Efficiency 1X/1.5X Fractional Charge
Pump for White LED Applications
14
3123.2005.12.1.4
AAT3124 Driving Two Groups of Paralleled White LEDs (e.g., main and sub-LCD backlights).
AAT3124 Driving a High-Current Photo-Flash LED.
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
VOUT
C1+
C1-
C2+
C2-
D1
D2
D3
D4
D5
D6
EN/SET
GND
AAT3124
D1
D6
Photo-Flash LED
R
B1
*
R
B2
*
R
B3
*
R
B4
*
R
B5
*
R
B6
*
Resistor R is optional
*In some applications, white LED forward voltages (V
) can vary significantly. Ballast resistors between the LED cathodes and ground are recommended
for balancing the forward voltage differences. The ballast resistor value may be approximated by the following equation:
B
= V
SOURCE
- V
F
R
F
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
VOUT
C1+
C1-
C2+
C2-
D1
D2
D3
D4
D5
D6
EN/SET
GND
AAT3124
D1
D6
R
B1
R
B2
R
B3
R
B4
R
B5
R
B6
Resistor R is optional
Resistor R is optional
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AAT3123AITP-20-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
AAT3123ITP-20-T1 制造商:Skyworks Solutions Inc 功能描述:LED DRIVER IC
AAT3124 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
AAT3124ISN-20-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
AAT3124ITO-20-T1 制造商:Skyworks Solutions Inc 功能描述:1.5X, 1X WH LED CHPMP, 14TSOPJW TR 制造商:Skyworks Solutions Inc 功能描述:Voltage Regulators - Switching Regulators 1X/1.5X Fract Charge Pumps 4 WLED Apps 制造商:Skyworks Solutions Inc 功能描述:LED DRIVER IC
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