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LM3269 数据表(PDF) 4 Page - Texas Instruments |
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LM3269 数据表(HTML) 4 Page - Texas Instruments |
4 / 27 page LM3269 SNVS793D – NOVEMBER 2011 – REVISED MAY 2015 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) (2) MIN MAX UNIT PVIN, VOUT to GND −0.2 6 V EN, VCON to SGND, PGND −0.2 PVIN + 0.2 V or 6 V (3) V FB to PGND −0.2 VOUT + 0.2 V or 6 V (3) V SW1, SW2 −0.2 PVIN + 0.2 V or 6 V (3) V Continuous power dissipation(4) Internally limited Junction temperature, TJ-MAX 150 °C Storage temperature, Tstg −65 150 °C (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, please contact the Texas Instruments Sales Office/Distributors for availability and specifications. (3) Whichever is smaller. (4) Internal thermal circuitry protects the device from permanent damage. Thermal shutdown engages at TJ = 150°C (typical) and disengages at TJ = 125°C (typical). 6.2 ESD Ratings VALUE UNIT V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) (1) (2) MIN NOM MAX UNIT Input voltage 2.7 5.5 V Output voltage 0.6 4.2 V Recommended load current 0 750 mA Junction temperature (TJ) −30 125 °C Ambient temperature (TA) (3) −30 85 °C (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) All voltages are with respect to the potential at the GND pins. (3) In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may have to be de-rated. 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). 6.4 Thermal Information LM3269 THERMAL METRIC(1) YZR (DSBGA) UNIT 12 PINS RθJA Junction-to-ambient thermal resistance(2) 85 °C/W (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. (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. Junction-to-ambient thermal resistance (RθJA) is taken from a thermal modeling result, performed under the conditions and guidelines set forth in the JEDEC standard JESD51-7. 4 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: LM3269 |
类似零件编号 - LM3269_15 |
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类似说明 - LM3269_15 |
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