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TPS54336ADDAR Fiches technique(PDF) 5 Page - Texas Instruments |
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TPS54336ADDAR Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 47 page 5 TPS54335A, TPS54335-1A, TPS54336A www.ti.com SLVSCD5D – NOVEMBER 2014 – REVISED FEBRUARY 2016 Product Folder Links: TPS54335A TPS54335-1A TPS54336A Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. 6.4 Thermal Information THERMAL METRIC(1) TPS5433xA TPS5433xA and TPS54335-1A UNIT DDA (SO PowerPAD) DRC (VSON) 8 PINS 10 PINS RθJA Junction-to-ambient thermal resistance 42.1 43.9 °C/W RθJC(top) Junction-to-case (top) thermal resistance 50.9 55.4 °C/W RθJB Junction-to-board thermal resistance 31.8 18.9 °C/W ψJT Junction-to-top characterization parameter 8 0.7 °C/W ψJB Junction-to-board characterization parameter 13.5 19.1 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 7.1 5.3 °C/W (1) Measured at pins 6.5 Electrical Characteristics The electrical ratings specified in this section apply to all specifications in this document unless otherwise noted. These specifications are interpreted as conditions that will not degrade the parametric or functional specifications of the device for the life of the product containing it. TJ = –40°C to 150°C, VIN = 4.5 to 28 V, (unless otherwise noted) PARAMETER TEST 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 VEN = 0 V 2 10 µA VIN-operating non-switching supply current VVSENSE = 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 VEN = 1.1 V 1.15 µA Hysteresis current VEN = 1.3 V 3.3 µA VOLTAGE REFERENCE Reference TJ =25°C 0.7936 0.8 0.8064 V 0.788 0.8 0.812 MOSFET High-side switch resistance(1) V(BOOT-PH) = 3 V 160 280 m Ω V(BOOT-PH) = 6 V 128 230 m Ω Low-side switch resistance(1) VIN = 12 V 84 170 m Ω ERROR AMPLIFIER Error-amplifier transconductance (gm) –2 µA < ICOMP < 2 µA, VCOMP = 1 V 1300 µmhos Error-amplifier source and sink VCOMP = 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 |
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