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ST1938 数据表(PDF) 4 Page - Stanson Technology |
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ST1938 数据表(HTML) 4 Page - Stanson Technology |
4 / 5 page 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 |
类似零件编号 - ST1938 |
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类似说明 - ST1938 |
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