Full Bridge MOSFET Drivers. Ms office 2003 multilingual user interface pack download. Microchip Technology MIC4606 85V Full Bridge MOSFET Drivers offer adaptive dead time and shoot-through protection. MIC4606's adaptive dead-time circuitry constantly monitors both sides of the full-bridge. Renesas' large portfolio of driver products comprises half-bridge, full-bridge, low-side, and synchronous buck MOSFET drivers. The bridge driver products.

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I have a full bridge MOSFET driver driver driving a full bridge. After some experimenting with the circuit prototype i found out that the driver heats up to over 60 °C after a short while of running, which concerned me but it worked fine. However as I decreased impedance across the load (which was originally connected to primary coil of a transformer) the driver started acting in a weird way and i found out that it has blown out. This is already the second driver i destroyed this way and they're expensive as hell, so I need a solution. I think what's causing the driver to blow out is that when I decrease impedance across the load I basically create a short circuit between the driver's bootstrap pin and ground, which kills it. By adding a resistor across the load or the whole bridge and ground, I could easily solve the issue, however I do need low impedance on the load because I need high current (up to 20A). I thought about adding a resistor across the driver's bootstrap line, but I have concerns about it affecting the bootstrapping functionality.

EDIT: I'm actually using IGBTs in place of MOSFETs (specifically IRGPS4067DPBF) Also I'm not posting a layout because the full bridge is not on a PCB but it's simply bridge-soldered to the driver circuit. The full bridge operates at 150 kHz square wave.Both circuit and load voltage is 12v Also here's my circuit schematic: The full bridge is connected as in the driver's datasheet, except the feedback loop and shunt resistor: Here's the control circuit layout: And here's the picture of the bridge. $ begingroup $ Show us a picture, please. There was a recent case (maybe 2-3 weeks ago) of a guy blowing his bridge driver. So I told him to put decoupling caps on the power rail and that solved it. Fast switching of a high current combined with supply wire inductance to create a nasty L*di/dt spike which blew the chips.