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TPS54062DRBT Datasheet(PDF) 6 Page - Texas Instruments |
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TPS54062DRBT Datasheet(HTML) 6 Page - Texas Instruments |
6 / 42 page 6 TPS54062 SLVSAV1D – MAY 2011 – REVISED JULY 2016 www.ti.com Product Folder Links: TPS54062 Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. 6.4 Thermal Information THERMAL METRIC(1) TPS54062 UNIT MSOP VSON 8 PINS 8 PINS RθJA Junction-to-ambient thermal resistance 127.1 40.2 °C/W RθJC(top) Junction-to-case (top) thermal resistance 33.4 49.7 RθJB Junction-to-board thermal resistance 80 15.7 ψJT Junction-to-top characterization parameter 1 0.6 ψJB Junction-to-board characterization parameter 79 15.9 RθJC(bot) Junction-to-case (bottom) thermal resistance N/A 4.1 (1) 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. 6.5 Electrical Characteristics (1) TJ = –40°C to 125°C, VIN = 4.7 to 60 V (unless otherwise noted) PARAMETER CONDITIONS MIN TYP MAX UNIT SUPPLY VOLTAGE (VIN PIN) Operating input voltage VIN 4.7 60 V Shutdown supply current EN = 0 V 1.7 µA Iq Operating – Non-switching VSENSE = 0.9 V, VIN = 12 V 89 110 µA ENABLE AND UVLO (EN PIN) Enable threshold Rising 1.24 1.4 V Falling 1 1.14 V Input current Enable threshold +50 mV –4.7 µA Enable threshold –50 mV –1.2 µA Hysteresis 3.5 µA Enable to start switching time 450 µs VIN VIN start voltage VIN rising 4.53 V VOLTAGE REFERENCE Voltage reference 1mA < IOUT < Minimum Current Limit 0.784 0.8 0.816 V HIGH-SIDE MOSFET Switch resistance BOOT-PH = 5.7 V 1.5 2.8 Ω LOW-SIDE MOSFET Switch resistance VIN = 12 V 0.8 1.5 Ω ERROR AMPLIFIER Input Current VSENSE pin 20 nA Error amp gm –2 µA < I(COMP) < 2 µA, V(COMP) = 1 V 102 µS EA gm during slow-start –2 µA < I(COMP) < 2 µA, V(COMP) = 1 V, VSENSE = 0.4 V 26 µS Error amp DC gain VSENSE = 0.8 V 1000 V/V Min unity gain bandwidth 0.5 MHz Error amp source/sink V(COMP) = 1 V, 100-mV Overdrive ±8 µA Start Switching Threshold 0.57 V COMP to Iswitch gm 0.65 A/V CURRENT LIMIT High-side sourcing current limit threshold VIN = 12V, BOOT-PH = 5.7 V 75 134 mA Zero cross detect current –0.7 mA |
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