yb1508p YOBON TECHNOLOGIES,INC., yb1508p Datasheet - Page 3

• Manufacturer Part Number: yb1508p
• Description: Step-up Dc-dc Converter White Driver
• Manufacturer: YOBON TECHNOLOGIES,INC.

Absolute Maximum Ratings
SW voltage
All other pins
Electricity Characteristics
Table 3：
YB1508 MRev1.4
Input Voltage Range
Feedback Voltage
FB Pin Bias current
Supply current
Switching Frequency
Maximum Duty Cycle
Minimum duty cycle
Switch Vcesat
Switch Current Limit
Switch Leakage Current
VCTRL for Full LED current
CTRL Pin Bias Current
Chip turn off delay
Over Voltage Protection
Function Parameter
(T
A
=25°C, Vin=3.3V Cin=1uF Cout=4.7uF unless otherwise noted)
Iout =20mA, Vout = 12.5V
Circuit of figure 1. (L=22uH
Cout =4.7uF)
Rfb = 10 ohms
Vfb = 0.3V
CTRL = 0V
At Isw = 200mA
40% duty cycle
Ctrl = 0.3V
Ctrl = 2V
YB1508
YB1508P
Step-up DC-DC Converter , White LED Driver
40V
10V
WWW.YOBON.COM.TW
Conditions
Maximum Junction Temp,Tj
Lead Temperature
sec)
Thermal Resistance
Min
180
2.7
0.7
1.6
20
2
Typ
200
200
250
(Soldering 10
3.5
0.8
1.7
10
25
20
36
21
1
1
Max
220
1.3
1.8
20
93
35
30
9
YB1508
150 °C
300 °C
195 °C
Units
MHz
mV
mA
mV
mA
μA
μA
μA
μA
μS
%
%
V
V
V
3