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LM5000-3MTCEP Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LM5000-3MTCEP Datasheet(HTML) 4 Page - National Semiconductor (TI) |
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4 / 18 page  Absolute Maximum Ratings (Note 4) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V IN -0.3V to 40V SW Voltage -0.3V to 80V FB Voltage -0.3V to 5V COMP Voltage -0.3V to 3V All Other Pins -0.3V to 7V Maximum Junction Temperature 150˚C Power Dissipation(Note 5) Internally Limited Lead Temperature 216˚C Infrared (15 sec.) 235˚C ESD Susceptibility (Note 6) Human Body Model 2kV Machine Model 200V Storage Temperature −65˚C to +150˚C Operating Conditions Operating Junction Temperature Range (Note 10) −40˚C to +125˚C Supply Voltage (Note 10) 3.1V to 40V Electrical Characteristics Specifications in standard type face are for T J = 25˚C and those with boldface type apply over the full Operating Tempera- ture Range (T J = −40˚C to +125˚C) Unless otherwise specified. VIN = 12V and IL = 0A, unless otherwise specified. Symbol Parameter Conditions Min (Note 7) Typ (Note 8) Max (Note 7) Units I Q Quiescent Current FB = 2V (Not Switching) FS=0V 2.0 2.5 mA FB = 2V (Not Switching) FS = Open 2.1 2.5 mA V SHDN =0V 18 30 µA V FB Feedback Voltage 1.2330 1.259 1.2840 V I CL Switch Current Limit 1.35 2.0 2.7 A %V FB/ ∆V IN Feedback Voltage Line Regulation 3.1V ≤ V IN ≤ 40V 0.001 0.04 %/V I B FB Pin Bias Current (Note 9) 55 200 nA BV Output Switch Breakdown Voltage T J = 25˚C, ISW = 0.1µA 80 V T J = -40˚C to + 125˚C, ISW = 0.5µA 76 V IN Input Voltage Range 3.1 40 V g m Error Amp Transconductance ∆I = 5µA 150 410 750 µmho A V Error Amp Voltage Gain 280 V/V D MAX Maximum Duty Cycle LM5000-3EP FS=0V 85 90 % Maximum Duty Cycle LM5000-6EP FS=0V 85 90 % T MIN Minimum On Time 165 ns f S Switching Frequency LM5000-3EP FS=0V 240 300 360 kHz FS = Open 550 700 840 Switching Frequency LM5000-6EP FS=0V 485 600 715 FS = Open 1.055 1.3 1.545 MHz I SHDN Shutdown Pin Current V SHDN =0V −1 -2 µA I L Switch Leakage Current V SW = 80V 0.008 5 µA R DSON Switch R DSON I SW = 1A 160 445 m Ω Th SHDN SHDN Threshold Output High 0.9 0.6 V Output Low 0.6 0.3 V UVLO On Threshold 2.74 2.92 3.10 V Off Threshold 2.60 2. 77 2.96 V OVP V COMP Trip 0.67 V I SS Softstart Current 8 11 14 µA www.national.com 4 |
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