- Manufacturer Part Number : LTC4354
- Manufacturer : AD
- Description : Negative Voltage Diode-OR Controller and Monitor
- Series : LTC4354
- Reference Price : USD 1.704
- Our Price : We have a better price, contact us by email
- Product Type : PowerPath, Ideal Diodes & Load Switches
- Function : -
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LTC4354
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for LTC4354. If you need any more information about LTC4354, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
The LTC4354 is a negative voltage diode-OR controller that drives two external N-channel MOSFETs. It replaces two Schottky diodes and the associated heatsink, saving power and area. The power dissipation is greatly reduced by using N-channel MOSFETs as the pass transistors. Power sources can easily be ORed together to increase total system power and reliability.
When first powered up, the MOSFET body diode conducts the load current until the pass transistor is turned on. The LTC4354 servos the voltage drop across the pass transistors to ensure smooth transfer of current from one transistor to the other without oscillation.
The MOSFETs are turned off in less than 1µs whenever the corresponding power source fails or is shorted. Fast turnoff prevents the reverse current from reaching a level that could damage the pass transistors.
A fault detection circuit with an open drain output capable of driving an LED or opto-coupler indicates either MOSFET short, MOSFET open or supply failed.
Applications
- AdvancedTCA Systems
- –48V Distributed Power Systems
- Computer Systems/Servers
- Telecom Infrastructure
- Optical Networks
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.