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LM2678S-ADJ 数据表(PDF) 2 Page - Texas Instruments |
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LM2678S-ADJ 数据表(HTML) 2 Page - Texas Instruments |
2 / 35 page 1 2 3 4 7 9 10 VSW CB * VIN 5 6 11 12 13 14 VSW GND ON/OFF * * * FB 8 VIN VSW DAP** * No Connections ** Connect to Pin 9 on PCB * LM2678 SNVS029I – MARCH 2000 – REVISED APRIL 2013 www.ti.com Connection Diagrams Top View Top View Figure 1. DDPAK Package Figure 2. TO-220 Package See Package Number KTW0007B See Package Number NDZ0007B Top View Figure 3. VSON-14 Package See Package Number NHM0014A 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 Supply Voltage 45V ON/OFF Pin Voltage −0.1V to 6V Switch Voltage to Ground (3) −1V to VIN Boost Pin Voltage VSW + 8V Feedback Pin Voltage −0.3V to 14V Power Dissipation Internally Limited ESD (4) 2 kV Storage Temperature Range −65°C to 150°C Soldering Temperature Wave 4 sec, 260°C Infrared 10 sec, 240°C Vapor Phase 75 sec, 219°C (1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings indicate conditions under which of the device is ensured. Operating Ratings do not imply ensured performance limits. For ensured performance limits and associated test condition, see the Electrical Characteristics tables. (2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and specifications. (3) The absolute maximum specification of the 'Switch Voltage to Ground' applies to DC voltage. An extended negative voltage limit of -10V applies to a pulse of up to 20 ns, -6V of 60 ns and -3V of up to 100 ns. (4) ESD was applied using the human-body model, a 100pF capacitor discharged through a 1.5 k Ω resistor into each pin. 2 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM2678 |
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类似说明 - LM2678S-ADJ |
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