Y521 데이터 시트보기 (PDF) - YOBON TECHNOLOGIES,INC.
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Y521 Datasheet PDF : 9 Pages
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YB1521
High Power Step-Up DC-DC Converter & WLED Driver
Electrical Characteristics
Table4 (VIN=5V, VEN=5V, TA=25°C, unless otherwise noted.)
Parameters
Symbol Test Conditions
MIN
Input Voltage Range
Quiescent Current
Shutdown Current
Feedback Voltage
FB Input Bias Current
Switch On-Resistance
Maximum Duty Cycle
Switching Frequency
EN Threshold
VIN
IQ
ISD
VFB
RDSON
DTMX
FSW
VENH
2.5
VFB=0.3V
VEN=0V, IOUT = 0mA
IOUT = 260mA, VOUT =
10.5V
180
VFB = 0.2V
VFB = 0V
85
1
VEN Rising, VIN = 5V
1
EN Threshold
VENL
VEN Rising, VIN = 2.5V
0.8
EN Dimming Frequency
20
Switch Current Limit
IILM
1
Under Voltage Lock Out
UVLO
VIN Rising
UVLO Hysteresis
Over Voltage Protection
Thermal Shutdown
OVP
16
TSD
The Hysteresis = 20℃
TYP
5
0.2
0.1
200
0.4
92
1.3
1.5
50
1.6
2.25
100
18
160
MAX Units
5.5
V
0.8 mA
1
µA
220 mV
0.1 µA
Ω
%
1.6 MHz
2
V
V
KHz
A
2.45 V
mV
22
V
℃
YB1521 MRev.1.1
www.yobon.com.tw
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