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TPS54425 Datasheet(PDF) 2 Page - Texas Instruments |
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TPS54425 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 25 page TPS54425 SLVSA84C – AUGUST 2010 – REVISED JULY 2011 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ORDERING INFORMATION(1) TRANSPORT TA PACKAGE(2) (3) ORDERABLE PART NUMBER PIN MEDIA, QUANTITY TPS54425PWP Tube PowerPAD ™ –45°C to 85°C 14 (HTSSOP) – PWP TPS54425PWPR Tape and Reel (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. (2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. (3) All package options have Cu NIPDAU lead/ball finish. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) VALUE UNIT VIN1, VIN2 EN –0.3 to 20 V VBST –0.3 to 26 V VBST (10 ns transient) –0.3 to 28 V VI Input voltage range VFB VO, SS, PG –0.3 to 6.5 V SW1, SW2 –2 to 20 V SW1, SW2 (10 ns transient) –3 to 22 V VREG5 –0.3 to 6.5 V VO Output voltage range PGND1, PGND2 –0.3 to 0.3 V Vdiff Voltage from GND to POWERPAD –0.2 to 0.2 V Human Body Model (HBM) 2 kV Electrostatic ESD rating discharge Charged Device Model (CDM) 500 V TJ Operating junction temperature –40 to 150 °C Tstg Storage temperature –55 to 150 °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. THERMAL INFORMATION TPS54425 THERMAL METRIC(1) PWP UNITS 14 PINS θJA Junction-to-ambient thermal resistance 55.6 θJCtop Junction-to-case (top) thermal resistance 51.3 θJB Junction-to-board thermal resistance 26.4 °C/W ψJT Junction-to-top characterization parameter 1.8 ψJB Junction-to-board characterization parameter 20.6 θJCbot Junction-to-case (bottom) thermal resistance 4.3 (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. 2 Copyright © 2010–2011, Texas Instruments Incorporated |
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