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TPS61281 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS61281 Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 55 page  TPS61280, TPS61281, TPS61282 www.ti.com SLVSBI1A – OCTOBER 2013 – REVISED SEPTEMBER 2014 9.4 Thermal Information TPS6128x THERMAL METRIC(1) UNIT YFF (16 PINS) RθJA Junction-to-ambient thermal resistance 78 RθJCtop Junction-to-case (top) thermal resistance 0.6 RθJB Junction-to-board thermal resistance 13 °C/W ψJT Junction-to-top characterization parameter 2.4 ψJB Junction-to-board characterization parameter 13 RθJCbot Junction-to-case (bottom) thermal resistance n/a (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. 9.5 Electrical Characteristics Minimum and maximum values are at VIN = 2.3V to 4.85V, VOUT = 3.4V (or VIN, whichever is higher), EN = 1.8V, VSEL = 1.8V, nBYP = 1.8V, –40°C ≤ TJ ≤ 125°C; Circuit of Parameter Measurement Information section (unless otherwise noted). Typical values are at VIN = 3.2V, VOUT = 3.4V, EN = 1.8V, TJ = 25°C (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT DC/DC boost mode. Device not switching, IOUT = 0mA, VIN = 3.2V, 47 65 µA VOUT = 3.4V Pass-through mode (auto) Operating quiescent current EN = 1.8V, nBYP = 1.8V, 27 42 µA into VIN VIN = 3.6V IQ TPS6128x Pass-through mode (forced) –40°C ≤ TJ ≤ EN = 1.8V, nBYP = AGND, 15 25 µA 85°C VOUT = 3.6V DC/DC boost mode. Device not Operating quiescent current switching, IOUT = 0mA, VIN = 3.2V, 8.5 19 µA into VOUT VOUT = 3.4V EN = 0V, nBYP = 0V, VIN = 3.6V 2.6 6 μA ISD Shutdown current TPS6128x EN = 0V, nBYP = 1.8V, VIN = 3.6V 8.5 20 μA Falling 2.0 2.1 V VUVLO Under-voltage lockout threshold TPS6128x Hysteresis 0.1 V EN, VSEL, nBYP, MODE, SDA, SCL, GPIO, PG VIL Low-level input voltage 0.4 V TPS6128x VIH High-level input voltage 1.2 V Low-level output voltage (SDA) IOL = 8mA 0.3 V TPS61280 VOL Low-level output voltage (GPIO) IOL = 8mA, GPIOCFG = 0 0.3 V Low-level output voltage (PG) TPS6128x IOL = 8mA 0.3 V EN, VSEL, nBYP, RPD TPS6128x Input ≤ 0.4 V 300 k Ω pull-down resistance EN, VSEL, nBYP, MODE, PG TPS6128x 9 pF input capacitance CIN Input connected to AGND or VIN SDA, SCL, GPIO input capacitance TPS61280 9 pF 0.95 x Rising VOUT VOUT VTHPG Power good threshold TPS6128x 0.9 x Falling VOUT VOUT Ilkg Input connected to AGND 0 µA –40°C ≤ TJ ≤ Input leakage current TPS6128x 85°C Input connected VIN 0.5 µA Copyright © 2013–2014, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: TPS61280 TPS61281 TPS61282 |
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