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LP5524 датащи(PDF) 4 Page - Texas Instruments |
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LP5524 датащи(HTML) 4 Page - Texas Instruments |
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4 / 18 page ![]() 4 LP5524 SNVS500C – JULY 2007 – REVISED NOVEMBER 2016 www.ti.com Product Folder Links: LP5524 Submit Documentation Feedback Copyright © 2007–2016, Texas Instruments Incorporated (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) If Military/Aerospace specified devices are required, contact the Texas Instruments Sales Office/ Distributors for availability and specifications. (3) All voltages are with respect to the potential at the GND pin. (4) For detailed soldering specifications and information, refer to AN-1112 DSBGA Wafer Level Chip Scale Package and Absolute Maximum Ratings for Soldering. (5) Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at TJ=160°C (typical) and disengages at TJ=140°C (typical). 6 Specifications 6.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) (2) (3) (4) MIN MAX UNIT V (VIN, DX, ISET) –0.3 6 V Voltage on logic pins (ENA, ENB) –0.3 6 V Continuous power dissipation(5) Internally limited Junction temperature, TJ-MAX 125 °C Storage temperature, Tstg –65 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. 6.2 ESD Ratings VALUE UNIT V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V (1) In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may have to be derated. Maximum ambient temperature (TA-MAX) is dependent on the maximum operating junction temperature (TJ-MAX-OP = 125°C), the maximum power dissipation of the device in the application (PD-MAX), and the junction-to ambient thermal resistance of the part/package in the application (RθJA), as given by the following equation: TA-MAX = TJ-MAX-OP – (RθJA × PD-MAX). 6.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT Voltage on power pin (VIN) 2.7 5.5 V Junction temperature, TJ –40 125 °C Ambient temperature, TA (1) –40 85 °C (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. (2) Junction-to-ambient thermal resistance is highly application and board-layout dependent. In applications where high maximum power dissipation exists, special care must be paid to thermal dissipation issues in board design. 6.4 Thermal Information THERMAL METRIC(1) LP5524 UNIT YFQ (DSBGA) 9 PINS RθJA Junction-to-ambient thermal resistance(2) 101.9 °C/W RθJC(top) Junction-to-case (top) thermal resistance 0.9 °C/W RθJB Junction-to-board thermal resistance 22.7 °C/W ψJT Junction-to-top characterization parameter 0.4 °C/W ψJB Junction-to-board characterization parameter 22.7 °C/W |
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