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LM26400Y Datasheet(PDF) 3 Page - Texas Instruments |
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LM26400Y Datasheet(HTML) 3 Page - Texas Instruments |
3 / 32 page LM26400Y www.ti.com SNVS457B – FEBRUARY 2007 – REVISED AUGUST 2007 Pin Descriptions (continued) Pin Name Description Input voltage of the power supply. Directly connected to the drain of the internal NMOS switch. 11, 12, 13,14 PVIN Tie these pins together and connect to a local bypass capacitor. 15 SW1 Switch node of Channel 1. Connects to the inductor, catch diode, and bootstrap capacitor. Supply rail for the gate drive of Channel 1's NMOS switch. A bootstrap capacitor should be 16 BST1 placed between the BST1 and SW1 pins. Must be connected to system ground for low thermal impedance and low grounding DAP Die Attach Pad inductance. 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) AVIN, PVIN −0.5V to 22V SWx Voltage −0.5V to 22V BSTx Voltage −0.5V to 26V BSTx to SW Voltage −0.5V to 6V FBx Voltage −0.5V to 3V ENx Voltage (2) −0.5V to 22V SSx Voltage −0.5V to 3V Junction Temperature +150°C ESD Susceptibility Human Body Model (3) 2kV Storage Temperature Range -65°C to 150°C (1) Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions under which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed performance limits and associated test conditions, see Electrical Characteristics table. (2) EN1 and EN2 pins should never be higher than VIN + 0.3V. (3) The human body model is a 100pF capacitor discharged through a 1.5 k Ω resistor into each pin. Test method is per JESD-22-A114. Operating Ratings (1) VIN 3V to 20V Junction Temperature −40°C to +125°C (1) Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions under which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed performance limits and associated test conditions, see Electrical Characteristics table. Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM26400Y |
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