Power mosfet with integrated drivers in a common package
AssigneeInternational Rectifier Corporation
InventorsDaniel M. Kinzer, Tim Sammon, Mark Pavier, Adam I. Amali
Life of this patent
Estimating the term…
Abstract
A driver stage consisting of an N channel FET and a P channel FET are mounted in the same package as the main power FET. The power FET is mounted on a lead frame and the driver FETs are mounted variously on a separate pad of the lead frame or on the main FET or on the lead frame terminals. All electrodes are interconnected within the package by mounting on common conductive surfaces or by wire bonding. The drivers are connected to define either an inverting or non-inverting drive.
Claims17
A power MOSFET with an integrated P channel driver FET and an N channel driver FET in a common package;
- said common package comprising a conductive support having extending terminals;
- said power MOSFET having a drain electrode fixed to said conductive support;
- said P channel and N channel driver FETs having respective gate, source and drain electrodes, one of said source or drain electrodes of said driver FETs connected at a node to define a series totem pole arrangement with the others of said source or drain electrodes of said driver FETS at the outer ends of said totem pole;
- the outer terminals of said totem pole circuit connected between a Vcc terminal and a ground terminal;
- and a driver input control terminal connected to said gate electrodes of said P and N channel driver FETs;
- said power MOSFET having a source electrode connected to said ground terminal;
- said node between said N and P channel drivers connected to the gate electrode of said power MOSFET;
- and a single, common insulation housing enclosing said power MOSFET, said conductive support and said N and P channel FETs;
- said extending terminals including a drain terminal which is connected to said power MOSFET drain electrode, said ground terminal, said Vcc terminal and said driver input control terminal.
Dependencies are inferred from the claim text.