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LM25119 Fiches technique(PDF) 6 Page - Texas Instruments |
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LM25119 Fiches technique(HTML) 6 Page - Texas Instruments |
6 / 39 page 6 LM25119, LM25119-Q1 SNVS680H – AUGUST 2010 – REVISED MAY 2016 www.ti.com Product Folder Links: LM25119 Submit Documentation Feedback Copyright © 2010–2016, Texas Instruments Incorporated (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 6.5 Thermal Information THERMAL METRIC(1) LM25119, LM25119-Q1 UNIT RTV (WQFN) 32 PINS RθJA Junction-to-ambient thermal resistance 36.7 °C/W RθJC(top) Junction-to-case (top) thermal resistance 20.9 °C/W RθJB Junction-to-board thermal resistance 9 °C/W ψJT Junction-to-top characterization parameter 0.2 °C/W ψJB Junction-to-board characterization parameter 8.9 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 2.2 °C/W (1) Minimum and Maximum limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate Texas Instrument's Average Outgoing Quality Level (AOQL). (2) Per VCC Regulator. 6.6 Electrical Characteristics Typical values correspond to TJ = 25°C. Minimum and maximum limits apply over –40°C to 125°C junction temperature range. VIN = 36 V, VCC = 8 V, VCCDIS = 0 V, EN2 = 5 V, RT = 25 kΩ, and no load on LO or HO (unless otherwise noted). PARAMETER TEST CONDITIONS MIN(1) TYP MAX(1) UNIT VIN SUPPLY IBIAS VIN operating current SS1 = SS2 = 0 V 6 7.3 mA VCCDIS = 2 V, SS1 = SS2 = 0 V 340 500 µA IVCC VCC1 operating current VCCDIS = 2 V, SS1 = SS2 = 0 V 3.9 4.5 mA VCC2 operating current VCCDIS = 2 V, SS1 = SS2 = 0 V 1.4 2 mA ISHUTDOWN VIN shutdown current UVLO = 0 V, SS1 = SS2 = 0 V 15 33 µA VCC REGULATOR(2) VCC(REG) VCC regulation 6.77 7.6 8.34 V VIN = 4.5 V, No external load 4.4 4.46 Sourcing current limit VCC = 0 V 25 40 mA VCCDIS switch threshold VCCDIS rising 1.19 1.25 1.29 V VCCDIS switch hysteresis 0.07 V VCCDIS input current VCCDIS = 0 V –20 nA Undervoltage threshold Positive going VCC 3.8 4 4.2 V Undervoltage hysteresis 0.2 V EN2 INPUT VIL EN2 input low threshold 2 1.5 V VIH EN2 input high threshold 2.9 2.5 V EN2 input pullup resistor 50 k Ω UVLO Threshold UVLO rising 1.2 1.25 1.29 V Hysterisis current UVLO = 1.4 V 15 20 25 µA Shutdown threshold 0.4 V Shutdown hysteresis voltage 0.1 V SOFT START Current source SS = 0 V 7 10 13 µA Pulldown RDSON 10 Ω |
Numéro de pièce similaire - LM25119_16 |
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Description similaire - LM25119_16 |
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