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LM2758 Datasheet(PDF) 3 Page - Texas Instruments |
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LM2758 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 18 page LM2758 www.ti.com SNVS551D – APRIL 2008 – REVISED MAY 2013 Absolute Maximum Ratings (1) (2) (3) VIN, CPOUT pins: Voltage to GND -0.3V to 6.0V EN1, EN2 pins: Voltage to GND -0.3V to (VIN + 0.3V) w/ 6.0V max Continuous Power Dissipation (4) Internally Limited Junction Temperature (TJ-MAX) 150°C Storage Temperature Range -65°C to 150°C Maximum Lead Temp. (Soldering) (5) ESD Ratings (6) Human Body Model 2kV Machine Model 200V (1) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications. (2) Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of the device is ensured. Operating Ratings do not imply ensured performance limits. For ensured performance limits and associated test conditions, see the Electrical Characteristics tables. (3) All voltages are with respect to the potential to the GND pin. (4) Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at TJ=150°C (typ.) and disengages at TJ = 140°C (typ.). (5) For detailed soldering specifications and information, please refer to Texas Instruments Application Note AN-1112 (SNVA009). (6) The Human body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. The machine model is a 200pF capacitor discharged directly into each pin. MIL-STD-883 3015.7 Operating Ratings (1) (2) Input Voltage Range 2.7V to 5.5V Junction Temperature Range (TJ) -40°C to +125°C Ambient Temperature Range (TA) (3) -40°C to +85 °C (1) Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of the device is ensured. Operating Ratings do not imply ensured performance limits. For ensured performance limits and associated test conditions, see the Electrical Characteristics tables. (2) All voltages are with respect to the potential to the GND pin. (3) 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 operation junction temperature (TJ-MAX-OP = 125ºC), 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 ( θJA), as given by the following equation: TA-MAX = TJ-MAX-OP - (θJA × PD-MAX). Thermal Information Junction-to-Ambient Thermal Resistance Resistance ( θJA), DSBGA package (1) 56°C/W (1) Junction-to-ambient thermal resistance ( θJA) is taken from a thermal modeling result, performed under the conditions and guidelines set forth in the JEDEC standard JESD51-7. The test board is a 4-layer FR-4 board measuring 102 mm x 76 mm x 1.6 mm with a 2x1 array of thermal vias. The ground plane on the board is 50 mm x 50 mm. Thickness of copper layers are 53µm/35µm/35µm/53µm (1.5oz/1oz/1oz/1.5oz). Ambient temperature in simulation is 22°C, still air. Power dissipation is 1W.The value of θJA of this product in this DSBGA could fall in a range as wide as 50ºC/W to 150ºC/W (if not wider), depending on PWB material, layout, and environmental conditions. In applications where high maximum power dissipation exists (high VIN, high IOUT), special care must be paid to thermal dissipation issues. Copyright © 2008–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM2758 |
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