LT4320 Ideal Diode Bridge Controllers

Ideal controllers that drive four N-channel MOSFETs from Linear Technology

Image of Linear Technology's LT4320 Ideal Diode Bridge ControllersThe LT®4320/LT4320-1 are ideal diode bridge controllers that drive four N-channel MOSFETs, supporting voltage rectification from DC to 600 Hz. By maximizing available voltage and reducing power dissipation, the ideal diode bridge simplifies power supply design and reduces power supply cost, especially in low-voltage applications.

An ideal diode bridge also eliminates thermal design problems and costly heat sinks, as well as greatly reducing PC board area. The LT4320's internal charge pump supports an all- NMOS design, which eliminates larger and more costly PMOS switches. If the power source fails or is shorted, a fast turn-off minimizes reverse current transients.

Applications include security cameras, terrestrial or airborne power distribution systems, power-over-Ethernet powered device with a secondary input, polarity-agnostic power input, and diode bridge replacement.

LT4320 Ideal Diode Bridge Controllers

ImageManufacturer Part NumberDescriptionAvailable Quantity
LT4320IDD#PBF datasheet linkIC OR CTRLR BRIDGE RECT 8DFNLT4320IDD#PBFIC OR CTRLR BRIDGE RECT 8DFN586 - Immediate
LT4320IDD#PBF product page link
LT4320IMSE#PBF datasheet linkIC OR CTRLR BRIDGE RECT 12MSOPLT4320IMSE#PBFIC OR CTRLR BRIDGE RECT 12MSOP452 - Immediate
LT4320IMSE#PBF product page link
LT4320IMSE-1#PBF datasheet linkIC OR CTRLR BRIDGE RECT 12MSOPLT4320IMSE-1#PBFIC OR CTRLR BRIDGE RECT 12MSOP379 - Immediate
LT4320IMSE-1#PBF product page link
LT4320IDD-1#PBF datasheet linkIC OR CTRLR BRIDGE RECT 8DFNLT4320IDD-1#PBFIC OR CTRLR BRIDGE RECT 8DFN277 - Immediate
LT4320IDD-1#PBF product page link

Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable Quantity
DC1823A datasheet linkBOARD EVAL FOR LT4320DC1823ABOARD EVAL FOR LT43200DC1823A product page link
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Published: 2013-07-11