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TPS3850H12DRCT Datasheet(PDF) 5 Page - Texas Instruments |
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TPS3850H12DRCT Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 44 page  5 TPS3850 www.ti.com SBVS301A – OCTOBER 2016 – REVISED NOVEMBER 2016 Product Folder Links: TPS3850 Submit Documentation Feedback Copyright © 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) TPS3850 UNIT DRC (VSON) 10 PINS RθJA Junction-to-ambient thermal resistance 50.9 °C/W RθJC(top) Junction-to-case (top) thermal resistance 50.6 °C/W RθJB Junction-to-board thermal resistance 25.4 °C/W ψJT Junction-to-top characterization parameter 1.2 °C/W ψJB Junction-to-board characterization parameter 25.5 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 7.3 °C/W (1) When VDD falls below VUVLO, RESET is driven low. (2) When VDD falls below VPOR, RESET and WDO are undefined. (3) During power-on, VDD must be a minimum 1.6 V for at least 300 µs before the output corresponds to the SENSE voltage. 6.5 Electrical Characteristics at 1.6 V ≤ VDD ≤ 6.5 V over the operating temperature range of –40°C ≤ TJ ≤ +125°C (unless otherwise noted); the open-drain pullup resistors are 10 kΩ for each output; typical values are at TJ = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT GENERAL CHARACTERISTICS VDD (1) (2) (3) Supply voltage 1.6 6.5 V IDD Supply current 10 19 µA RESET FUNCTION VPOR (2) Power-on reset voltage IRESET = 15 µA, VOL(MAX) = 0.25 V 0.8 V VUVLO (1) Undervoltage lockout voltage 1.35 V VIT+(OV) Overvoltage SENSE threshold accuracy, entering RESET VIT+(nom)–0.8% VIT+(nom)+0.8% VIT-(UV) Undervoltage SENSE threshold accuracy, entering RESET VIT-(nom)–0.8% VIT-(nom)+0.8% VIT(ADJ) Falling SENSE threshold voltage, adjustable version only 0.3968 0.4 0.4032 V VHYST Hysteresis voltage 0.2% 0.5% 0.8% ICRST CRST pin charge current CRST = 0.5 V 337 375 413 nA VCRST CRST pin threshold voltage 1.192 1.21 1.228 V WINDOW WATCHDOG FUNCTION ICWD CWD pin charge current CWD = 0.5 V 337 375 413 nA VCWD CWD pin threshold voltage 1.192 1.21 1.228 V VOL RESET, WDO output low VDD = 5 V, ISINK = 3 mA 0.4 V ID RESET, WDO output leakage current VDD = 1.6 V, VRESET, = VWDO = 6.5 V 1 µA VIL Low-level input voltage (SET0, SET1) 0.25 V VIH High-level input voltage (SET0, SET1) 0.8 V VIL(WDI) Low-level input voltage (WDI) 0.3 × VDD V VIH(WDI) High-level input voltage (WDI) 0.8 × VDD V ISENSE SENSE pin idle current TPS3850Xyy(y), VSENSE = 5.0 V, VDD = 3.3 V 2.1 2.5 µA TPS3850H01 only, VSENSE = 5.0 V, VDD = 3.3 V –50 50 nA |
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