L5101(2009) 查看數據表（PDF） - Unisonic Technologies

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产品描述 (功能)

生产厂家

L5101
(Rev.:2009)

WHITE LED STEP-UP CONVERTER

Unisonic Technologies 

L5101

„ APPLICATION INFORMATION(Cont.)

2. Using a DC Voltage

VIN

L1

10µH

D1

LINEAR INTEGRATED CIRCUIT

SW OVP

VIN

C2

C1

UTC L5101

1µF

1µF

SHDN GND

FB

R2 R1

VDC

0~5V 51K 1K RFB

4.7Ω

Fig. 4 Dimming Control Using a DC Voltage

3. Using a Filtered PWM Signal

L1

10µH

D1

VIN

SW OVP

VIN

C2

C1

UTC L5101

1µF

R1

SHDN GND

FB

1K

1µF

R2

R3 51K

PWM

5.1K C3

RFB

4.7Ω

0.1µF

Fig. 5 Dimming Control Using a Filter PWM Signal

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

7 of 10

QW-R103-026.B

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