yb1509 YOBON TECHNOLOGIES,INC., yb1509 Datasheet - Page 4

• Manufacturer Part Number: yb1509
• Description: High-power White Driver
• Manufacturer: YOBON TECHNOLOGIES,INC.

Typical Characteristics
.
CH1: LX CH2: Inductor Current CH3: V
YB1509 MRev.1.1
10nF
10nF
V
V
IN=8 to 14V
IN=3 to 6V
10µF
Bypass
16V
Figure 5. 2 Legs of 6 LEDs in a Series
Figure 7. Typical Switching Waveform
10µF
Bypass
16V
I
SET
EN
1K
I
EN
SET
9.1K
Figure 3. 8 LEDs in a Series
YB1509
VIN
YB1509
VIN
GND
GND
10µH
33µH
FB
LX
60OHM
FB
LX
R
OUT
SL12
FB1
(18 LEDs)
SL12
60OHM
R
FB
60OHM
R
www.yobon.com.tw
FB2
4.7µF
35V
4.7µF
High-Power White LED Driver
35V
CH1: EN CH2: LX CH3: V
10nF
10nF
V
V
IN=8 to 14V
IN=5 to 8V
Figure 8. PWM Brightness Control by EN
Figure 6. 2 Legs of 9 LEDs in a Series
10µF
Bypass
10µF
Bypass
16V
16V
I
I
EN
SET
EN
SET
1K
1K
Figure 4. 10 LEDs in a Series
YB1509
YB1509
VIN
VIN
GND
GND
22µH
33µH
OUT
(18 LEDs)
LX
FB
LX
FB
YB1509
60OHM
R
SL12
SL12
FB1
60OHM
R
FB
4
60OHM
R
FB2
4.7µF
35V
4.7µF
35V