データシートサーチシステム |
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LM3485MM データシート(PDF) 3 Page - National Semiconductor (TI) |
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LM3485MM データシート(HTML) 3 Page - National Semiconductor (TI) |
3 / 15 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. VIN Voltage −0.3V to 36V PGATE Voltage −0.3V to 36V FB Voltage −0.3V to 5V ISENSE Voltage −1.0V to 36V ADJ Voltage −0.3V to 36V Maximum Junction Temp. 150˚C Power Dissipation 417mW @ T A = 25˚C ESD Susceptibilty Human Body Model (Note 3) 2kV Lead Temperature Vapor Phase (60 sec.) Infared (15 sec.) 215˚C 220˚C Storage Temperature −65˚C to 150˚C Operating Ratings (Note 1) Supply Voltage 4.5V to 35V Operating Junction Temperature −40˚C to +125˚C Electrical Characteristics Specifications in Standard type face are for T J = 25˚C, and in bold type face apply over the full Operating Temperature Range (T J = −40˚C to +125˚C). Unless otherwise specified, VIN = 12V, VISNS =VIN − 1V, and VADJ =VIN − 1.1V. Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. Symbol Parameter Conditions Min (Note 4) Typ (Note 5) Max (Note 4) Unit I Q Quiescent Current at ground pin FB = 1.5V (Not Switching) 250 400 µA V FB Feedback Voltage (Note 6) 1.226 1.217 1.242 1.258 1.267 V V HYST Comparator Hysteresis 10 14 15 20 mV V CL(Note 7) Current limit comparator trip voltage R ADJ = 20kΩ 110 mV R ADJ = 160kΩ 880 V CL_OFFSET Current limit comparator offset V FB = 1.5V −20 0 +20 mV I CL_ADJ Current limit ADJ current source V FB = 1.5V 3.0 5.5 7.0 µA T CL Current limit one shot off time V ADJ = 11.5V V ISNS = 11.0V V FB = 1.0V 6 9 14 µs R PGATE Driver resistance Source I SOURCE = 100mA 5.5 Ω Sink I Sink = 100mA 8.5 I PGATE Driver Output current Source V IN = 7V, P GATE = 3.5V 0.44 A Sink V IN = 7V, P GATE = 3.5V 0.32 V PGATEMIN Minimum driver voltage V IN = 4.5V V FB = 1.0V I GATE = 100µA sink 1.2 V I FB FB pin Bias Current (Note 8) V FB = 1.0V 300 750 nA T ONMIN_NOR Minimum on time in normal operation V ISNS =VADJ+0.1V C load on OUT = 1000pF (Note 9) 100 ns www.national.com 3 |
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同様の説明 - LM3485MM |
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