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LTC4357IDCB-TRPBF Datasheet(PDF) 1 Page - Linear Technology |
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LTC4357IDCB-TRPBF Datasheet(HTML) 1 Page - Linear Technology |
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1 / 12 page  LTC4357 1 4357fb FEATURES APPLICATIONS DESCRIPTION Positive High Voltage Ideal Diode Controller The LTC®4357 is a positive high voltage ideal diode control- ler that drives an external N-channel MOSFET to replace a Schottky diode. When used in diode-OR and high current diode applications, the LTC4357 reduces power consump- tion, heat dissipation, voltage loss and PC board area. The LTC4357 easily ORs power sources to increase total system reliability. In diode-OR applications, the LTC4357 controls the forward voltage drop across the MOSFET to ensure smooth current transfer from one path to the other without oscillation. If the power source fails or is shorted, a fast turn-off minimizes reverse current transients. 48V, 10A Diode-OR n Reduces Power Dissipation by Replacing a Power Schottky Diode with an N-Channel MOSFET n 0.5μs Turn-Off Time Limits Peak Fault Current n Wide Operating Voltage Range: 9V to 80V n Smooth Switchover without Oscillation n No Reverse DC Current n Available in 6-Lead (2mm × 3mm) DFN and 8-Lead MSOP Packages n N + 1 Redundant Power Supplies n High Availability Systems n AdvancedTCA Systems n Telecom Infrastructure n Automotive Systems 4357 TA01 LTC4357 GND IN OUT VDD GATE FDB3632 VINA 48V VOUT TO LOAD LTC4357 GND IN OUT VDD GATE FDB3632 VINB 48V Power Dissipation vs Load Current L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION CURRENT (A) 0 0 1 2 3 4 5 6 246 8 4357 TA01b 10 DIODE (MBR10100) FET (FDB3632) POWER SAVED |
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