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HT7939A 데이터시트(PDF) 9 Page - Holtek Semiconductor Inc

부품명 HT7939A
상세설명  Performance White LED Driver
PDF  13 Pages
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제조업체  HOLTEK [Holtek Semiconductor Inc]
홈페이지  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT7939A 데이터시트(HTML) 9 Page - Holtek Semiconductor Inc

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Rev. 1.00
9
April 19, 2012
HT7939A
Application Circuits
VIN
EN
GND
SW
OVP
FB
HT7939A
VIN
VOUT
10mH/22mH
L
1N5819
D1
Rfb
1W
2.2mF
C1
2.2mF
C2
3S13P
Fig.18 Application for Driving 3S13P WLEDs
1W
2.2mF
2.2mF
VIN
EN
GND
SW
OVP
FB
HT7939A
VIN
VOUT
10mH/22mH
L
1N5819
D1
Rfb
C1
C2
3S13P
PWM Signal
Fig.19 Application for Dimming Control Using A PWM Signal
VIN
EN
GND
SW
OVP
FB
HT7939A
VIN
VOUT
10mH/22mH
L
1N5819
D1
2.2mF
C1
2.2mF
C2
3S13P
Rfb
1W
10kW
150kW
0V~3.3V
Fig.20 Application for Dimming Control Using a DC Voltage
VIN
EN
GND
SW
OVP
FB
HT7939A
VIN
VOUT
10mH/22mH
L
1N5819
D1
2.2mF
C1
2.2mF
C2
3S13P
Rfb
1W
10kW
150kW
PWM Signal
0.1mF
Fig.21 Application for Dimming Control Using a Filtered PWM Signal



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