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BQ25895RTWR Datasheet(PDF) 6 Page - Texas Instruments |
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BQ25895RTWR Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 67 page  6 bq25895 SLUSC88A – MARCH 2015 – REVISED MAY 2016 www.ti.com Product Folder Links: bq25895 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 7.4 Thermal Information THERMAL METRIC(1) bq25895 UNIT RTW (WQFN) 24-PINS RθJA Junction-to-ambient thermal resistance 32.2 °C/W RθJC((op) Junction-to-case (top) thermal resistance 34.8 °C/W RθJB Junction-to-board thermal resistance 8.8 °C/W ψJT Junction-to-top characterization parameter 0.5 °C/W ψJB Junction-to-board characterization parameter 8.8 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 2.0 °C/W 7.5 Electrical Characteristics VVBUS_UVLOZ < VVBUS < VACOV and VVBUS > VBAT > VSLEEP, TJ = –40°C to +125°C and TJ = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT QUIESCENT CURRENTS IBAT Battery discharge current (BAT, SW, SYS) in buck mode VBAT = 4.2 V, V(VBUS) < V(UVLO), leakage between BAT and VBUS 5 µA High-Z mode, no VBUS, BATFET disabled (REG09[5]=1), battery monitor disabled, TJ < 85°C 12 23 µA High-Z mode, no VBUS, BATFET enabled (REG09[5]=0), battery monitor disabled, TJ < 85°C 32 60 µA I(VBUS_HIZ) Input supply current (VBUS) in buck mode when High-Z mode is enabled V(VBUS)= 5 V, High-Z mode, no battery, battery monitor disabled 15 35 µA V(VBUS)= 12 V, High-Z mode, no battery, battery monitor disabled 25 50 µA I(VBUS) Input supply current (VBUS) in buck mode VBUS > V(UVLO), VBUS > VBAT, converter not switching 1.5 3 mA VBUS > V(UVLO), VBUS > VBAT, converter switching, VBAT = 3.2 V, ISYS = 0A 3 mA VBUS > V(UVLO), VBUS > VBAT, converter switching, VBAT = 3.8 V, ISYS = 0 A 3 mA I(BOOST) Battery discharge current in boost mode VBAT = 4.2 V, boost mode, I(VBUS)= 0 A, converter switching 5 mA |
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