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LM2601MTCX Folha de dados(PDF) 1 Page - National Semiconductor (TI) |
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LM2601MTCX Folha de dados(HTML) 1 Page - National Semiconductor (TI) |
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1 / 6 page  LM2601 Adapter Interface Circuit General Description The Adapter Interface Circuit (AIC) is used to sense the presence of an external power source for a portable com- puter. It notifies the computer if a source is present and indicates if the source is appropriate for charging battery packs inside the computer. The AIC also senses an adapter current and its direction. AIC isolates the adapter and signals the computer when peak current threshold is exceeded. LM2601 drives P-channel FETs. No high current rated Schottky diode is required to implement an adapter switcho- ver circuit. This significantly decreases additional heat dissi- pation during simultaneous fast battery charging while run- ning a computer, particularly in Maximum Performance mode of operation Features n Detects an AC-DC adapter suitable for battery charging or an airplane or car power line adapter that should not be used for battery charging n Allows the implementation of intelligent switchover circuits for portable systems n LM2601 shuts down automatically when adapter is removed n Low leakage current from battery when not powered n Drives P-channel FETs, no Schottky diodes are required n No reverse inrush current from battery into the adapter output capacitance n Allows for battery capacity gas-gauge calibration under system software/firmware control n Adapter over current threshold programmable with external resistors n Wide input range: 5V - 24V n Available in TSSOP-14 package Applications n Portable Computers n Portable IAs (Internet Appliances, Information Appliances) n Other Battery Powered Devices Block Diagram 10130901 April 2001 © 2001 National Semiconductor Corporation DS101309 www.national.com |
Nº de peça semelhante - LM2601MTCX |
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Descrição semelhante - LM2601MTCX |
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