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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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TPS54335DDA Fiches technique(PDF) 3 Page - Texas Instruments |
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TPS54335DDA Fiches technique(HTML) 3 Page - Texas Instruments |
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3 / 40 page  TPS54335 TPS54336 www.ti.com SLVSC03B – MAY 2013 – REVISED NOVEMBER 2013 THERMAL INFORMATION TPS54335/6 THERMAL METRIC(1) UNITS DDA (8 PINS) DRC (10 PINS) θJA Junction-to-ambient thermal resistance 42.1 43.9 θJCtop Junction-to-case (top) thermal resistance 50.9 55.4 θJB Junction-to-board thermal resistance 31.8 18.9 °C/W ψJT Junction-to-top characterization parameter 8 0.7 ψJB Junction-to-board characterization parameter 13.5 19.1 θJCbot Junction-to-case (bottom) thermal resistance 7.1 5.3 (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. ELECTRICAL CHARACTERISTICS The Electrical Ratings specified in this section will apply to all specifications in this document unless otherwise noted. These specifications will be interpreted as conditions that will not degrade the device’s parametric or functional specifications for the life of the product containing it. TJ = –40°C to +150°C, VIN =4.5 TO 28V, (unless otherwise noted) PARAMETERS CONDITIONS MIN TYP MAX UNIT SUPPLY VOLTAGE AND UVLO (VIN PIN) Operating input voltage 4.5 28 V Input UVLO threshold Rising Vin 4 4.5 V Input UVLO hysteresis 180 400 mV VIN Shutdown supply current EN = 0V 2 10 µA VIN Operating – Non switching supply current VSENSE = 810 mV 310 800 µA ENABLE (EN PIN) Enable threshold Rising 1.21 1.28 V Enable threshold Falling 1.1 1.17 V Input current EN= 1.1 V 1.15 µA Hysteresis current EN= 1.3 V 3.3 µA VOLTAGE REFERENCE TJ =25°C 0.7936 0.8 0.8064 Reference V 0.788 0.8 0.812 MOSFET BOOT-PH= 3 V 160 280 m Ω High side switch resistance(1) BOOT-PH= 6 V 128 230 m Ω Low Side Switch Resistance(1) VIN = 12V 84 170 m Ω ERROR AMPLIFIER Error amplifier transconductance (gm) –2 µA < ICOMP < 2 µA V(COMP) = 1 V 1300 µmhos Error amplifier source/sink V(COMP) = 1 V, 100 mV Overdrive 100 µA Start switching peak current threshold 0.5 A COMP to Iswitch gm 8 A/V CURRENT LIMIT High side switch current limit threshold 4 4.9 6.5 A Low side switch sourcing current limit 3.5 4.7 6.1 A Low side switch sinking current limit 0 A Hiccup wait time 512 Cycles Hiccup time before re-start 16384 Cycles (1) Measured at pins Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: TPS54335 TPS54336 |
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