Gate Driver ICs Forum Discussions

I'm considering using the above device to drive a push-pull transformer amplifier.

Refering to the example circuit from the device datasheet, figure 11 page 20.

6.5 Switches with bipolar gate drive:

It appears to me to have a problem.

1. Shouldn't there be a current limiting resistor from VDD to zener VB?
If so, how does this affect the overall operation.

2. From what I see drawn, the components Rs and Cs2 are simply tied to PGND straight from the devices GND input.
Is this correct? If so, how is a negative voltage being generated?

In general can you please confirm the overall validity of this circuit as drawn?

Hello,

I would like to use the INH Pin of the driver to reduce quicence current of the device.

1) The manual says: "If the INH pin is set to low the internal power down sequence will be initiated and the gate driver IC will enter sleep mode after undervoltage shutdown at pin CB has been detected." In my application CB-Pin is connected to GND using a capacitor. Does it have an effect on the behaviour of the INH-shutdown when pulled to ground?

2) In the manual chapter 16.3.10 "Reduced Operation Mode INH set to low":
"In Reduced Operation Mode if INH is set to „low“ if VCB < VCBUVSD, Sleep Mode might not be entered. For
additional information please refer to TLE9180 Application Note „Reduced Operation Mode INH set to low”."

What does it mean? Where is VCBUVSD applied? Where do I find the Application Note above?

Thank you and kind regards

Bernhard

Hi Expert,

We would like to use TLE92108 in car window lift application. We require ripple anti-pinch function. Could you please share related reference design? Thanks.

BR,

Y

I am writing to seek assistance regarding an issue I am facing with the IRS25752LPBF High-Side Gate Driver, which I recently purchased from Infineon using the product code "irs25752lpbf.

I am currently working on my Final Year Project, where I intend to utilize this gate driver in a circuit designed for a buck converter and an SPMC (Switched-Mode Power Converter). However, after assembling the circuit following the guidelines provided in the designer section of Infineon, I have encountered a problem: the IRS25752LPBF gate driver does not seem to produce any output.

I have carefully checked and rechecked the circuit connections, components, and power supply, but I am unable to identify the source of the issue. As a diligent student, I am eager to learn and troubleshoot this problem effectively to ensure the success of my project.

Therefore, I kindly request your guidance on the following matters:

Potential Causes: Could you please provide insight into the potential causes for the absence of output from the IRS25752LPBF gate driver? I would greatly appreciate any information that could help me pinpoint the root cause of this problem.

Testing Methods: What are the recommended ways to test the circuit's open completion? Are there specific tests or measurements I should perform to identify potential faults or malfunctions in the circuit?

Troubleshooting Steps: In case the issue persists even after performing the recommended tests, could you please provide me with a step-by-step troubleshooting guide to help diagnose and resolve the problem? Any specific actions or checks I should undertake would be invaluable in overcoming this challenge.

I've used and constructed the circuit found in the designer application from Infineon. The link to the circuit and simulations are as below: 

https://www.infineon.com/cms/en/tools/landing/ifxdesignerhtmlfiles/power_500VDC_high_side_buck_IRS25752L_IPD65R1K4C6.html

Hello

Both of AUIR21814S/IR2184S are ' Not for new design'...

I could not find  similar product in Home Page.

 :600V

 :SOIC14N

 :source/sink: 1.9A/2.3A

Would you please let me know candidate of replacement?

Best Regards

Hello,

I'm new to the gate driver community. Have a question for the community.

I've been using Vishay SUP70101EL P-Channel MOSFETs (https://www.vishay.com/docs/77632/sup70101el.pdf) for load switch applications. For my applications so far, turn-on time has been more important so I've been driving the MOSFET's Source to Gate junction with 5V directly from an Agilent function generator. This works very well for turn-on. Turn-off is slow of course.

Now, I'm looking for a gate drive solution that will also turn the FET off quickly. The work I do is in the prototype stage. I've been mounting the FET source lead on power supply binding posts and getting by. It's not a robust setup. I'm considering mounting them on terminal blocks but the options are limited there.

I wonder if anybody could recommend an Infineon evaluation board(s) housing 'high-side P-channel' gate drivers that might work well with the SUP70101EL MOSFETs (0/5V control input, ?/-10V Vgs output). If there's an Infineon evaluation board(s) housing both gate drivers and P-channel MOSFETs similar in performance to the SUP70101EL, that's even better.

Thank you,

Jeff

Hi Expert,

If I wnat to use TLE92108 in ASIL-B system, what kind of functional safety material can you provide? And do we need external circuit or extra software to achieve ASIL-B level? Thanks.

BR,

Y

I would like to use TLE9183 charge pumper for external driver power, to driving an external reverse battery NMOSFET protection, which required max 3mA.

So I would like to check 

1.)  Does charge pump output available for driving an external reverse battery NMOSFET protection? 

2.) What's the max charge pump output current?

3.) Which pin is recommend for driving? CH1, CB or CH2?