The LT®1160/LT1162 are cost effective half-/full-bridge. N-channel power MOSFET drivers. The floating driver can drive the topside N-channel power MOSFETs. 29 Products - Full Bridge MOSFET Drivers at Farnell element14. Competitive prices from the leading Full Bridge MOSFET Drivers distributor. Check our stock now!

The MLX83100 is a two-phase pre-driver (also called bridge driver or gate driver) IC with integrated current sense amplifier. This device is used to drive brushed DC motors in combination with a microcontroller and four discrete power N-FETs. This device is able to control four external N-FETs for full H-bridge control in the supply range from 4.5 volt to 28 volt, by means of the integrated charge pump. The high side gate drivers are supplied via bootstrap circuits. The trickle charge pump allows 100% pulse width modulation (PWM) operation despite the use of bootstrap capacitors. The bootstrap voltage regulator is optimized for gate charges up to 500 nC per FET at 20 kHz PWM. Our MLX83100 pre-driver comprises various monitoring and protection functions, including undervoltage and overvoltage detection at multiple internal voltage nodes, over temperature detection, and drain-source and gate-source voltage monitoring of the external N-FETs.

In case of fault detection, the serial ICOM diagnostics interface will inform the microcontroller with a PWM signal, where the duty cycle indicates the nature of the error. An integrated fast, high-bandwidth, low offset current sense amplifier allows for precise torque control, with programmable gain selection. The MLX83100 provides an EEPROM for configurability, avoiding the need for a high pin-count package. Credo dat 4 0 torrent. The configuration allows the customer to optimize the pre-driver’s operation for different applications. For brushless (BL)DC applications see also the of the same pre-driver family. For sensorless BLDC applications see also our embedded-MCU BLDC controllers MLX812xx family.

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.

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