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The LTC4418IUF connects one of the two active supplies to a common output based on priority and validity. Connect to a common output based on priority and validity. Priority is determined by pin assignment, with V1 having a higher priority and V2 having a lower priority. The power supply is defined as valid when the supply voltage is continuously within the overvoltage (OV) and undervoltage (UV) ranges. (OV) and undervoltage (UV) windows for at least the minimum configured validation time. If the highest priority valid input exceeds the OV/UV window, the channel is immediately disconnected, the other valid inputs are immediately disconnected, and the other valid input is connected to the common output. Multiple LTC4418s as well as the three-channel LTC4417 can be cascaded to provide switching between more than two inputs. Switching between more than two inputs.

Features

● Selection of the highest priority power supply from both inputs

● Blocking of reverse and cross conduction currents

● Wide operating voltage range: 2.5V to 40V

● -42V reverse connection protection

● 60V tolerance V1, V2 inputs

● Adjustable input verification time

● Fast switching minimises output voltage dips

● Low 26µA operating current

● ±1.5% Input overvoltage/undervoltage protection

● Adjustable overvoltage/undervoltage hysteresis

● Cascadable for additional input power supply

● 20-pin 4mm × 4mm QFN package

Applications

● Industrial handheld instruments

● High-availability systems

● Battery backup systems

● Servers and computer peripherals

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.