yb1517 YOBON TECHNOLOGIES,INC., yb1517 Datasheet - Page 4

• Manufacturer Part Number: yb1517
• Description: Step-up Dc-dc Converter & White Led Driver
• Manufacturer: YOBON TECHNOLOGIES,INC.

Electrical Characteristics
Table 3
Note :
Absolute maximum ratings are limits beyond which damage to the device may occur. The maximum allowable,
power dissipation at any ambient temperature is calculated using: P
YB1517 Rev.1.4
Input Voltage Range
Quiescent Current
Shutdown Current
Feedback Voltage
Switch Current Limit
FB Pin Bias Current
Switching Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Switch Vcesat
Switch Leakage Current
VCTRL for Full LED Current
CTRL Pin Bias Current
Over Voltage Protection
Over Thermal Protection
Description
(V
IN
= 3.3V, L=22μH, C
IN
Symbol
D
OVP
OTP
= 1μF, C
D
V
V
F
V
I
I
V
I
I
LKG
CTL
I
I
SD
MAX
CL
SAT
CTL
SW
MIN
Q
FB
B
IN
Step-up DC-DC Converter & White LED Driver
www.yobon.com.tw
OUT
V
CTRL = 0V
I
Circuit of Figure 2
85% duty cycle
40% duty cycle
V
At I
CTRL = 0.5V
Full On
Full Off
CTRL = 2V
OUT
FB
FB
= 4.7μF, T
SW
= 220mV
= 0.5V
= 20mA,V
Test Conditions
= 200mA
A
=25°C, unless otherwise noted.)
OUT
= 6V
D(MAX)
= [T
MIN
210
850
850
2.7
1.7
J(MAX)
85
20
28
-T
A
TYP
]/θ
220
900
400
900
160
1.5
0.3
40
30
JA
YB1517
.
MAX
1000
230
950
180
1.7
0.3
16
25
35
1
1
1
Units
KHz
mA
mV
mA
mA
mV
°C
μA
μA
μA
μA
%
%
V
V
V
V
4