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ST1938 数据表(PDF) 4 Page - Stanson Technology

部件名 ST1938
功能描述  DC-DC Step-Up Converter for White LED Driver
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制造商  STANSON [Stanson Technology]
网页  http://www.stansontech.com
标志 STANSON - Stanson Technology

ST1938 数据表(HTML) 4 Page - Stanson Technology

  ST1938 Datasheet HTML 1Page - Stanson Technology ST1938 Datasheet HTML 2Page - Stanson Technology ST1938 Datasheet HTML 3Page - Stanson Technology ST1938 Datasheet HTML 4Page - Stanson Technology ST1938 Datasheet HTML 5Page - Stanson Technology  
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ST1938
DC-DC Step-Up Converter for White LED Driver
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
www.stansontech.com
ST1938 2008. V1
ELECTRICAL CHARACTERISTICS (Ta=25℃, VIN=3.6V, unless otherwise specified.)
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
VIN
Operating Voltage
2.4
7
V
VFB
Feedback Voltage
ISW=100mA, Duty
Cycle = 66%
86
110
mV
IFB
FB Pin Bias Current
150
nA
VSHDN > 0V
2.8
3.5
mA
IS
Supply Current
VSHDN = 0V
0.05 1.0
μA
Fosc
Switching Frequency
0.68
0.8
1.0
MHz
D
Maximum Duty Cycle
85
%
Iout
Switch Current Limit
320
mA
ILEAKAGE Switch Leakage Current
VSW= 5V
0.01
5
μA
Vcesat
Switch Vcesat
ISW = 200mA
150
mV
ISHDN
SHDN Pin Current
90
uA
VSHDNH SHDN Voltage High
1.5
V
SHDNL
SHDN Voltage Low
0.4
V
VOVP
Over Voltage Preotection
Vout Rising
21
V


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