LT4322
FEATURES
- Replaces Rectifying Diodes with N-Channel MOSFETs in Rectifier Applications
- Maximizes Power Efficiency, Eliminates Thermal Design Problems
- Low 25m V Forward Voltage Drop
- Wide Operating Voltage Range: 9V to >500V
- Wide Operating Frequency Range: DC to 100k Hz
- Regulated 12V GATE Drive for External N-Channel
MOSFET Enhancement
- 8-Lead MSOP and 8-Lead, 3mm x 3mm, Side Wettable
DFN Packages
APPLICATIONS
- Single-Phase, 3-Phase, and 6-Phase Bridge Rectifiers
- Automotive Alternator Bridge Rectifiers
- Off-Line Active Bridge Rectifier
- 3-Phase Aircraft Power
- High-Voltage DC Diode-OR with Reverse Blocking
DESCRIPTION
The LT4322 is a floating active rectifier controller that drives an external N-Channel MOSFET to replace a rectifier diode. It is designed primarily for AC applications and operates with input supply frequencies ranging from DC to 100k Hz. On each cycle of the input AC waveform, an external N-Channel MOSFET gate is enhanced to provide the equivalent of a low...
