データシートサーチシステム |
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LM2623 データシート(PDF) 3 Page - Texas Instruments |
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LM2623 データシート(HTML) 3 Page - Texas Instruments |
3 / 16 page LM2623 www.ti.com SNVS188G – MAY 2004 – REVISED DECEMBER 2005 Pin Description (continued) LLP-14 Pin MSOP-8 Pin Name Function 10 6 VDD Power Supply for Internal Circuitry 11 7 BOOT Bootstrap Supply for the Gate Drive of Internal MOSFET Power Switch 12, 13 8 SW Drain of the Internal MOSFET Power Switch. (LLP Pins 12 & 13 must be shorted together). 14 NC No Connect DAP DAP To be soldered to board for enhanced thermal dissipation. To be electrically isolated/floating. 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) SW Pin Voltage −0.5 V to 14.5V BOOT, VDD, EN and FB Pins −0.5V to 10V FREQ Pin 100µA TJmax (2) 150°C Storage Temperature Range −65°C to +150°C Lead Temp. (Soldering, 5 sec) 260°C Power Dissipation (TA=25°C) (2) 500mW ESD Rating (3) 2kV (1) Absolute maximum ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device outside of its rated operating conditions. (2) The maximum power dissipation must be derated at elevated temperatures and is dictated by Tjmax (maximum junction temperature), θJA (junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is Pdmax = (Tjmax - TA)/ θJA or the number given in the Absolute Maximum Ratings, whichever is lower. (3) The human body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. For Pin 8 (SW) the ESD rating is 1.0 kV. Operating Conditions (1) VDD Pin 3V to 5V FB, EN Pins 0 to VDD BOOT Pin 0 to 10V Ambient Temperature (TA) −40°C to +85°C (1) Absolute maximum ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device outside of its rated operating conditions. Copyright © 2004–2005, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM2623 |
同様の部品番号 - LM2623_14 |
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同様の説明 - LM2623_14 |
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