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Ideal Diode Bridge Controller Minimizes Rectifier Heat & Voltage Loss
The LT4320 switch control smoothly turns on the appropriate two MOSFETs, while keeping the other two off to prevent reverse currents. An integrated charge pump provides the gate drive for the external low on-resistance N-channel MOSFETs without requiring external capacitors. The choice of MOSFETs offers the greatest flexibility in power levels ranging from one to thousands of watts.
The LT4320 is available in two options: the LT4320 is designed for DC to 60Hz voltage rectification, whereas the LT4320-1 rectifies DC to 600Hz. Specified over the -40°C to 85°C industrial temperature range, the LT4320 is offered in a compact 8-pin 3mm x 3mm DFN package, and a 12-lead MSOP package with enhanced high-voltage pin spacing. Priced beginning at $2.95 each for 1,000-piece quantities, the device is available today in production quantities. Evaluation circuit boards are available online or from your local Linear Technology sales office. For more information, visit www.linear.com/product/LT4320.
Summary of Features: LT4320
- Low Loss Replacement for Diode Bridge Rectifier
- Controls N-Channel MOSFETs
- Maximizes Power Efficiency
- Eliminates Thermal Design Problems
- Maximizes Available Voltage
- 9V to 72V Operating Voltage Range
- DC to 600Hz Operation
- 1.5mA Quiescent Current
- -40°C to +85°C Guaranteed Temperature Range
- 8-Pin 3mm x 3mm DFN & 12-Lead MSOP Packages
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