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參數(shù)資料
| 型號(hào)： | AIC1647 |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | WHITE LED STEP-UP CONVERTER IN SOT23 |
| 中文描述： | 白光LED升壓型轉(zhuǎn)換器在SOT23封裝 |
| 文件頁(yè)數(shù)： | 9/11頁(yè) |
| 文件大?。?/td> | 413K |
| 代理商： | AIC1647 |
AIC1647
than the FB pin bias current. With a VDC ranging
from 0V to 5V, the selection of resistors in Figure
21 results in dimming control of LED current from
20mA to 0mA, respectively.
3. Using a Filtered PWM Signal
Filtered PWM signal can be considered as an
adjustable DC voltage. It can be used to replace
the variable DC voltage source in dimming
control. The circuit is shown in Figure 22.
V
IN
L1
10
μ
H
D1
SW
VIN
SHDN
GND
AIC1647
FB
RFB
4.7
C1
1
μ
F
C2
1
μ
F
20mA
D2
R1
1K
RB512S-30
PWM
BZV55-B12
11.8V~12.2V
Fig. 19 Dimming Control Using a PWM Signal with Open-Circuit Protection
L1
D1
V
IN
C1
1
μ
F
10
μ
H
SW
VIN
SHDN
GND
AIC1647
FB
RFB
4.7
C2
1
μ
F
20mA
D2
R1
1K
RB512S-30
PWM
R2
BZV55-B12
11.8V~12.2V
51K
Fig. 20 Dimming Control Using a PWM Signal
9
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AIC1647CVBG | 制造商:AIC 制造商全稱(chēng):Analog Intergrations Corporation 功能描述:WHITE LED STEP-UP CONVERTER IN SOT23 |
| AIC1647CVTR | 制造商:AIC 制造商全稱(chēng):Analog Intergrations Corporation 功能描述:WHITE LED STEP-UP CONVERTER IN SOT23 |
| AIC1647PVBG | 制造商:AIC 制造商全稱(chēng):Analog Intergrations Corporation 功能描述:WHITE LED STEP-UP CONVERTER IN SOT23 |
| AIC1647PVTR | 制造商:AIC 制造商全稱(chēng):Analog Intergrations Corporation 功能描述:WHITE LED STEP-UP CONVERTER IN SOT23 |
| AIC1648 | 制造商:AIC 制造商全稱(chēng):Analog Intergrations Corporation 功能描述:Built-in OVP White LED Step-Up Converter |
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