Datasheet for LTC4449:
- Manufacturer Part Number : LTC4449
- Manufacturer : AD
- Description : High Speed Synchronous N-Channel MOSFET Driver
- Series : LTC4449
- Reference Price : USD 1.04
- Our Price : We have a better price, contact us by email
- Product Type : High Side Switches & MOSFET Drivers
- 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 : LTC4449
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The LTC4449 is a high frequency gate driver that is designed to drive two N-Channel MOSFETs in a synchronous DC/DC converter. The powerful rail-to-rail driver capability reduces switching losses in MOSFETs with high gate capacitance.
The LTC4449 features a separate supply for the input logic to match the signal swing of the controller IC. If the input signal is not being driven, the LTC4449 activates a shutdown mode that turns off both external MOSFETs. The input logic signal is internally level-shifted to the bootstrapped supply, which functions at up to 42V above ground.
The LTC4449 contains undervoltage lockout circuits on both the driver and logic supplies that turn off the external MOSFETs when an undervoltage condition is present. An adaptive shoot-through protection feature is also built-in to prevent the power loss resulting from MOSFET cross-conduction current.
The LTC4449 is available in the 2mm × 3mm DFN package.
Applications
- Distributed Power Architectures
- High Density Power Modules
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.
