Gate Driver ICs Forum Discussions
I want to ask whether AUIR3240S can be applied to back-to back FET configuration as AUIR3241S.
I don't see back-to-back configuration in AUIR3240S .
any body can suggest proper gate driver IC for back-to-back connection ?
( VCC > 35 )
I am using IR21814S for LLC gate driver, and I need to limit the minimum duty of PWM signal. Could you help address the minimum HI/LI on pulse requirement for IR21814S? Thank you. Show Less
I have attached the circuit. I'm trying to drive a coolgan HEMT (IGOT60R070D1) with driver - 1EDF5673F.
PROBLEM - 1) When I tested the driver alone (without connecting the switch and the power circuit), the driver always shows -8V as output at the "gate to source terminal" irrespective of what I give at the PWM input pin.
PROBLEM - 2) When I soldered the gan switch, the SK pin of the switch draws considerably high current (more than 200-300mA). (drive still gives -8V between G-SK of device)
Can anyone help with this problem? What am I missing?
PS: I have soldered two boards with new components to confirm the above symptoms. So i'm sure its not the soldering issue or damaged ICs. Show Less
We have used TLE9183 in our design,now I am writing DFEMA,I am confused on what will happen to this IC when two pins of this driver IC short to each other or one pin open. Could you provide me some documents which have that contents? such as safety manual? or something like that?Show Less
What verification tests have been done by the original PCN manufacturer of AUIR3241STR？such as EMC and EE.
Where can these PCN reports be found and downloaded?Show Less
We built a 7.5kW H-bridge converter using IAUT260N10S5N019 MOSFETs and 2ED020I12FA gate driver. H-bridge is getting powered from a 48V battery pack and is driving an RL load.
We went for this driver for miller clamp protection and short circuit protection features. We are facing two problems with this driver which are:
1. DESAT or short circuit protection is not working - RESET pin on driver is ringing during short circuit event making gate driver signals to flow again and Driver is failing during short circuit test.
2. Miller clamp circuit of the driver is failing sometimes during normal operation of the circuit.
H- bridge is currently being operated as a synchronous buck converter. Operation of H-bridge is as follows:
State 1: Left leg top mosfet and right leg bottom mosfet are turned ON to drive the current into the load.
State 2: Left leg bottom mosfet and right leg bottom mosfet are turned ON to freewheel the current in the RL load. A dead band of 1us is given to avoid shoot-through in left leg during transition between left top and left bottom mosfets.
State 3: When pulses are taken away from all the switches, left leg bottom mosfet's body diode and right leg top mosfet's body diode will conduct to give away the energy stored in inductor to the source.
The load is connected between mid points of each leg of the H-bridge. The driver is being used in boot strap circuit configuration to drive the top mosfet in left leg. Second leg top mosfet is not given gate pulse during any state of operation.
Problem 1:: Desat or short circuit protection is not working
To validate the short circuit performance of the circuit, left leg top mosfet and right leg bottom mosfet are kept continuosly ON for some duration and then a 5us ON pulse is given to the left leg bottom MOSFET to create short circuit on left leg.
DESAT protection is not activating and gate driver is failing during this event (3 times drivers failed). Diagnosis of failed drivers using impedance test shows shorted secondary supply pins. Following waveforms are taken during short circuit test.
However, no MOSFET failed during this test but during normal tests MOSFETs are failing. So, its important to have this short circuit protection working properly.
In the following figure - Blue : Bottom gate driver output pulse; Yellow: Top gate driver output pulse; Pink : Desat Pin voltage
In the below figure - Blue : Bottom gate driver output pulse; Yellow: Top gate driver output pulse; Pink : 15V supply on secondary side
Problem 2:: Miller clamp circuit of the driver is failing sometimes during normal operation of the circuit.
Normal operation of the converter is explained above. It is observed that drivers are failing sometimes during normal running condition of the converter.
Fault diagnosis of some of the failed drivers with impedance test has shown low impedance on miller clamp pin which indicates failure of miller clamp transistor.
We went for miller clamp to protect MOSFETs from unwanted triggering during switching events but instead driver itself is failing in such events.
We are struck with these problems to move ahead in releasing the prototype of our product. Any support in the above mentioned issues is greatly appreciated.
Kashyap Gundlapalli Show Less
New product released:
1ED44176N01F: 25 V single-channel low-side gate driver with integrated over-current protection (OCP), fault reporting, and enable functionality
1EDS20I12SV: 1200 V single high side gate driver IC with slew rate control and reinforced isolation
2ED2304S06F: 650 V Half Bridge Gate Driver IC with Integrated Bootstrap Diode (BSD)
1EDN7550 and 1EDN8550: 1-channel low-side EiceDRIVER™ family with truly differential inputs (TDI) prevents false triggering of power MOSFETs
Infineon gate driver website tools:
Infineon gate drivers home page
Gate driver finder tool (Web)
Gate driver X-reference (Web)
Simulation tools (Web)
Evaluation boards (Web)
200 V Level-Shift Gate Driver ICs
500 - 700 V Level-Shift Gate Driver ICs
1200 V Level-Shift Gate Driver ICs
SiC MOSFET Gate Driver ICs
1EDI/1EDC EiceDRIVER™ Compact
The Slew-Rate Control EiceDRIVER™
1EDN EiceDRIVER™ Gate Driver IC
2EDN EiceDRIVER™ Gate Driver IC
EiceDRIVER™ 1EDN TDI Show Less
I want to implement non-isolated LED lighting using the IRS25411S device
Please let me know if you have application notes or data applied to actual products.
Consider the above datasheet of a Gate Driver. A lot of gate driver selection criteria online recommend discharging the internal capacitances of the IGBT or MOSFET to a negative voltage (-5 or -8 or -15v) to avoid spurious turn-on
My questions are:
1. How do I look for the Gate Drivers which allow me to swing the voltage across the Gate-Emitter the device in the Infineon product filtering options (What to look in the datasheets specifically), as well as when I have the device physically or in Spice simulations, how does one go about choosing the allowed voltage swing?
2. Would I be able to use a MOSFET Gate Driver for an IGBT? Thanks and RegardsShow Less
We are planning on using the 2ED2110S06M Gate driver IC at higher switching frequencies. Because of this, we are concerned about power dissipation of the 16-lead wide body SO surface mount package. There are a number of "unused" pins (4, 5, 9, 10 and 16) in this IC package, so we are wondering if connecting them to some sort of copper pour pad under and around the IC might be helpful to improve the IC power dissipation (presently we have a land for each pin but noting connected to any of them.)
Can or should the unused pins of 2ED2110S06M Gate driver IC be electrically connected together or connected to an electrical plane like GND or VSS?
Are the 2ED2110S06M unused pins in good thermal contact with the lead-frame the die is mounted on inside the package?
Do you have a recommended "heat dissipating" component land pattern or layout tips for using the gate drivers in the SO-16 package at higher frequency/higher power dissipation?
Thank You for you help!Show Less