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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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LM2586S-3.3 데이터시트(PDF) 2 Page - Texas Instruments |
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LM2586S-3.3 데이터시트(HTML) 2 Page - Texas Instruments |
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2 / 38 page  LM2586 SNVS121D – MAY 1996 – REVISED APRIL 2013 www.ti.com Connection Diagrams Figure 1. Bent, Staggered Leads Figure 2. Bent, Staggered Leads 7-Lead TO-220 (NDZ) 7-Lead TO-220 (NDZ) Top View Side View See Package Number NDZ0007B Figure 3. 7-Lead DDPAK (KTW) Figure 4. 7-Lead DDPAK (KTW) Top View Side View See Package Number KTW0007B These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) Input Voltage −0.4V ≤ VIN ≤ 45V Switch Voltage −0.4V ≤ VSW ≤ 65V Switch Current (3) Internally Limited Compensation Pin Voltage −0.4V ≤ VCOMP ≤ 2.4V Feedback Pin Voltage −0.4V ≤ VFB ≤ 2 VOUT ON /OFF Pin Voltage −0.4V ≤ VSH ≤ 6V Sync Pin Voltage −0.4V ≤ VSYNC ≤ 2V Power Dissipation (4) Internally Limited Storage Temperature Range −65°C to +150°C Lead Temperature (Soldering, 10 sec.) 260°C Maximum Junction Temperature (4) 150°C Minimum ESD Rating (C = 100 pF, R = 1.5 k Ω) 2 kV (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 device may occur. These ratings apply when the current is limited to less than 1.2 mA for pins 1, 2, 3, and 6. Operating ratings indicate conditions for which the device is intended to be functional, but device parameter specifications may not be ensured under these conditions. For ensured specifications and test conditions, see the Electrical Characteristics. (3) Note that switch current and output current are not identical in a step-up regulator. Output current cannot be internally limited when the LM2586 is used as a step-up regulator. To prevent damage to the switch, the output current must be externally limited to 3A. However, output current is internally limited when the LM2586 is used as a flyback regulator (see the Application Hints section for more information). (4) The junction temperature of the device (TJ) is a function of the ambient temperature (TA), the junction-to-ambient thermal resistance ( θJA), and the power dissipation of the device (PD). A thermal shutdown will occur if the temperature exceeds the maximum junction temperature of the device: PD × θJA + TA(MAX) ≥ TJ(MAX). For a safe thermal design, check that the maximum power dissipated by the device is less than: PD ≤ [TJ(MAX) − TA(MAX)]/θJA. When calculating the maximum allowable power dissipation, derate the maximum junction temperature—this ensures a margin of safety in the thermal design. 2 Submit Documentation Feedback Copyright © 1996–2013, Texas Instruments Incorporated Product Folder Links: LM2586 |
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