YB1519 Datasheet, PDF (4/7 Pages) YOBON TECHNOLOGIES,INC. – High-Power White LED Driver

YB1519
High-Power White LED Driver
Typical Characteristics
.
VIN=3 to6V
10µF
16V
EN
Bypass
ISET
33µH
SL12
VIN
LX
36V
LX
YB1519
2K
FB
10nF
PGND
9.1K
AGND
RFB
60OHM
4.7µF
35V
Figure 3. 8 LEDs in a Series
VIN=5 to8V
10µF
16V
10nF
EN
Bypass
ISET
1K
22µH
SL12
VIN
LX
36V
LX
YB1519
FB
2K
PGND
AGND
RFB
60OHM
4.7µF
35V
Figure 4. 10 LEDs in a Series
VIN=8 to14V
10µF
16V
EN
Bypass
ISET
1K
10µH
SL12
VIN
LX
LX
YB1519
FB
PGND
AGND
36V
2K
RFB1
60OHM
4.7µF
35V
RFB2
60OHM
Figure 5. 2 Legs of 6 LEDs in a Series
VIN=8 to14V
10µF
16V
10nF
EN
Bypass
ISET
1K
33µH
SL12
VIN
YB1519
AGND
PGND
36V
LX
FB
2K
RFB1
60OHM
4.7µF
35V
RFB2
60OHM
Figure 6. 2 Legs of 9 LEDs in a Series
CH1: LX CH2: Inductor Current CH3: V_OUT (18 LEDs)
Figure 7. Typical Switching Waveform
CH1: EN CH2: LX CH3: V_OUT (18 LEDs)
Figure 8. PWM Brightness Control by EN
YB1519 MRev.1.2
www.yobon.com.tw
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