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参数资料
| 型号： | YB1517 |
| 厂商： | YOBON TECHNOLOGIES, INC. |
| 元件分类： | DC/DC变换器 |
| 英文描述： | Step-up DC-DC Converter & White LED Driver |
| 中文描述： | 升压DC - DC转换器 |
| 文件页数： | 4/10页 |
| 文件大小： | 498K |
| 代理商： | YB1517 |
YB1517
Step-up DC-DC Converter & White LED Driver
YB1517 MRev.1.0
www.yobon.com.tw
3
Absolute Maximum Ratings
VIN .................................................................................20V
SW Voltage ....................................................................35V
FB Voltage .......................................................................5V
CTRL Voltage...................................................................5V
Maximum Junction Temp,TJ (not 2) ............................150°C
Lead Temperature (Soldering 10 sec) .........................250°C
Thermal Resistance (SOT-25,
θJA).......................250℃/W
Internal Power Disspation (SOT-25, PD)......................0.4W
Electricity Characteristics
Table 3
Recommended Operating Conditions
Operating Temperature (note 3) .........................-40°C~85°C
Supply Voltage .................................................... 2.7 V~16V
SW Voltage ....................................................................30V
ESD Susceptibility (HBM).............................................. 2KV
ESD Susceptibility (MM)...............................................200V
Symbol
Function Parameter
Test Conditions
Min
Typ
Max
Units
Vin
Input Voltage Range
2.7
16
V
Not Switching
VFB = 0.5V
1.2
1.5
1.7
mA
IQ
(Quiescent
Current)
Shutdown
CTRL = 0V
0.3
1
uA
VFB
Feedback Voltage
Iout=20mA,Vout = 6V
Circuit of Figure 2
210
220
230
mV
100% duty cycle
850
900
1000
mA
ICL
Switch Current Limit
40% duty cycle
400
mA
IB
FB Pin Bias Current
VFB=220mV
1
uA
FRSW
Switching Frequency
850
900
950
KHz
DTMX
Maximum Duty Cycle
85
%
DTMN
Minimum duty cycle
20
25
%
VSAT
Switch Vcesat
At Isw = 200mA
180
mV
ILKG
Switch Leakage Current
Ctrl = 0.5V
1
μA
Full On
1.7
V
VCTL
VCTRL for Full LED
current
Full Off
0.3
V
ICTL
CTRL Pin Bias Current
Ctrl = 2V
40
μA
OVP
Over Voltage Protection
34
V
θJA
Thermal Resistance
220
°C/W
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 .
(TA=25°C, Vin=3.3V, L=22uH, Cin=1uF, Cout=4.7uF unless otherwise noted)
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