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LM2585 датащи(PDF) 5 Page - Texas Instruments |
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LM2585 датащи(HTML) 5 Page - Texas Instruments |
5 / 32 page LM2585 www.ti.com SNVS120F – APRIL 2000 – REVISED APRIL 2013 Electrical Characteristics (All Versions) Symbol Parameters Conditions Typical Min Max Units COMMON DEVICE PARAMETERS for all versions (1) IS Input Supply Current (Switch Off)(2) 11 15.5/16.5 mA ISWITCH = 1.8A 50 100/115 mA VUV Input Supply RLOAD = 100Ω 3.30 3.05 3.75 V Undervoltage Lockout fO Oscillator Frequency Measured at Switch Pin RLOAD = 100Ω 100 85/75 115/125 kHz VCOMP = 1.0V fSC Short-Circuit Measured at Switch Pin Frequency RLOAD = 100Ω 25 kHz VFEEDBACK = 1.15V VEAO Error Amplifier Upper Limit(3) 2.8 2.6/2.4 V Output Swing Lower Limit(2) 0.25 0.40/0.55 V IEAO Error Amp See (4) 165 110/70 260/320 μA Output Current (Source or Sink) ISS Soft Start Current VFEEDBACK = 0.92V 11.0 8.0/7.0 17.0/19.0 μA VCOMP = 1.0V D Maximum Duty RLOAD = 100Ω (3) 98 93/90 % Cycle IL Switch Leakage Switch Off 15 300/600 μA Current VSWITCH = 60V VSUS Switch Sustaining dV/dT = 1.5V/ns 65 V Voltage VSAT Switch Saturation ISWITCH = 3.0A 0.45 0.65/0.9 V Voltage ICL NPN Switch 4.0 3.0 7.0 A Current Limit θJA Thermal Resistance TO-220 Package, Junction to 65 Ambient(5) θJA TO-220 Package, Junction to 45 Ambient(6) θJC TO-220 Package, Junction to 2 Case θJA DDPAK/TO-263 Package, 56 °C/W Junction to Ambient(7) θJA DDPAK/TO-263 Package, 35 Junction to Ambient(8) (1) All room temperature limits are 100% production tested, and all limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. (2) To measure this parameter, the feedback voltage is set to a high value, depending on the output version of the device, to force the error amplifier output low. Adj: VFB = 1.41V; 3.3V: VFB = 3.80V; 5.0V: VFB = 5.75V; 12V: VFB = 13.80V. (3) To measure this parameter, the feedback voltage is set to a low value, depending on the output version of the device, to force the error amplifier output high. Adj: VFB = 1.05V; 3.3V: VFB = 2.81V; 5.0V: VFB = 4.25V; 12V: VFB = 10.20V. (4) To measure the worst-case error amplifier output current, the LM2585 is tested with the feedback voltage set to its low value (specified in Tablenote 3) and at its high value (specified in Tablenote 2). (5) Junction to ambient thermal resistance (no external heat sink) for the 5 lead TO-220 package mounted vertically, with ½ inch leads in a socket, or on a PC board with minimum copper area. (6) Junction to ambient thermal resistance (no external heat sink) for the 5 lead TO-220 package mounted vertically, with ½ inch leads soldered to a PC board containing approximately 4 square inches of (1oz.) copper area surrounding the leads. (7) Junction to ambient thermal resistance for the 5 lead TO-263 mounted horizontally against a PC board area of 0.136 square inches (the same size as the DDPAK/TO-263 package) of 1 oz. (0.0014 in. thick) copper. (8) Junction to ambient thermal resistance for the 5 lead TO-263 mounted horizontally against a PC board area of 0.4896 square inches (3.6 times the area of the DDPAK/TO-263 package) of 1 oz. (0.0014 in. thick) copper. Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM2585 |
Аналогичный номер детали - LM2585_15 |
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Аналогичное описание - LM2585_15 |
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