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YB1517ST25 View Datasheet(PDF) - YOBON TECHNOLOGIES,INC.

Part Name
Description
View to exact match
YB1517ST25
YOBON
YOBON TECHNOLOGIES,INC. YOBON
YB1517ST25 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
YB1517
Step-up DC-DC Converter & White LED Driver
Electrical Characteristics
Table 3 (VIN = 3.3V, L=22μH, CIN = 1μF, COUT = 4.7μF, TA=25°C, unless otherwise noted.)
Description
Symbol
Test Conditions
MIN TYP MAX
Input Voltage Range
Quiescent Current
Shutdown Current
Feedback Voltage
VIN
IQ
VFB = 0.5V
ISD
CTRL = 0V
VFB
IOUT = 20mA,VOUT = 6V
Circuit of Figure 2
2.7
16
1.5 1.7
0.3
1
210 220 230
Switch Current Limit
85% duty cycle
ICL
40% duty cycle
850 900 1000
400
FB Pin Bias Current
Switching Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Switch Vcesat
IB
FSW
DMAX
DMIN
VSAT
VFB = 220mV
At ISW = 200mA
1
850 900 950
85
20
25
180
Switch Leakage Current
ILKG
CTRL = 0.5V
1
VCTRL for Full LED Current
CTRL Pin Bias Current
Over Voltage Protection
VCTL
ICTL
OVP
Full On
Full Off
CTRL = 2V
1.7
0.3
40
28
30
35
Over Thermal Protection
OTP
160
Units
V
mA
μA
mV
mA
mA
μA
KHz
%
%
mV
μA
V
V
μA
V
°C
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: PD(MAX)= [TJ(MAX)-TA]/θJA .
YB1517 Rev.1.4
www.yobon.com.tw
4
 

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