Datenblatt-Suchmaschine für elektronische Bauteile |
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LM3414 Datenblatt(PDF) 5 Page - Texas Instruments |
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LM3414 Datenblatt(HTML) 5 Page - Texas Instruments |
5 / 30 page LM3414, LM3414HV www.ti.com SNVS678F – JUNE 2010 – REVISED NOVEMBER 2015 6.4 Thermal Information LM3414, LM3414HV THERMAL METRIC(1) NGQ (WSON) DDA (SOIC-8) UNIT 8 PINS 8 PINS RθJA Junction-to-ambient thermal resistance 47.7 50.5 °C/W RθJC(top) Junction-to-case (top) thermal resistance 43.1 55.7 °C/W RθJB Junction-to-board thermal resistance 22.3 28.6 °C/W ψJT Junction-to-top characterization parameter 0.4 9.5 °C/W ψJB Junction-to-board characterization parameter 22.5 28.5 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 4 3.2 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 6.5 Electrical Characteristics MIN and MAX limits apply for TJ = –40°C to 125°C unless specified otherwise. VIN = 24 V unless otherwise indicated. PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT SYSTEM PARAMETERS - LM3414 4.5 V ≤ Vin ≤ 42 V IIN-DIM-HIGH Operating Current RIADJ = 3.125 kΩ 2.2 3.2 3.5 mA VDIM = High 4.5 V ≤ Vin ≤ 42 V IIN-DIM-LOW Standby Current RIADJ = 3.125 kΩ 0.8 1.15 1.4 mA VDIM = Low Main Switch Turned OFF ILX-OFF LX Pin Current 6 µA VLX = VIN = 42 V SYSTEM PARAMETERS - LM3414HV 4.5 V ≤ Vin ≤ 65 V IIN-DIM-HIGH Operating Current RIADJ = 3.125 kΩ 2.2 3.3 3.6 mA VDIM = High 4.5 V ≤ Vin ≤ 65 V IIN-DIM-LOW Standby Current RIADJ = 3.125 kΩ 0.8 1.2 1.45 mA VDIM = Low Main Switch Turned OFF ILX-OFF LX Pin Current 6.5 µA VLX = VIN= 65 V SYSTEM PARAMETERS - LM3414/3414HV RIADJ = 3.125 kΩ 0.97 1 1.03 A TA = 25°C ILED Average LED Current RIADJ = 3.125 kΩ 0.95 1 1.05 A TA = –40°C to 125°C VCC-UVLO Vcc UVLO Threshold VCC Decreasing, TA = 25°C 3.6 3.75 3.9 V VCC-UVLO-HYS Vcc UVLO Hysteresis 300 mV VIADJ IADJ Pin voltage 1.23 1.255 1.280 V VDIM DIM Pin Threshold VDIM Increasing 1 1.2 V VDIM-HYS DIM Pin Hysteresis 100 mV fSW Switching frequency 250 500 1000 kHz fSW-TOL Switching frequency tolerance RFS = 40 kΩ 420 500 580 kHz tON-MIN Minimum on-time 400 ns (1) All limits specified at room temperature (TYP) and at temperature extremes (MIN/MAX). All room temperature limits are 100% production tested. All limits at temperature extremes are specified through correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). (2) Typical specification represent the most likely parametric norm at 25°C operation. Copyright © 2010–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM3414 LM3414HV |
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