Interesting simulation results on this one. Tp represents the high-time for your PWM signal. Home Questions Tags Users Unanswered. There is a huge variety. It works like a charm, and the IR range was very good.

Uploader: Vitilar
Date Added: 12 August 2009
File Size: 14.43 Mb
Operating Systems: Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads: 11750
Price: Free* [*Free Regsitration Required]

I’m also seeing elsewhere though lef the internet that typical current draw should be mA. Used 5V from uC to drive the circuit, toggling it on and off every second.

failure – Burnt MOSFET in the following circuit. Why? – Electrical Engineering Stack Exchange

This Agreement may not be amended except in writing signed by an authorized representative of each of the parties hereto. Post as a guest Name. HandyHowie 1, 1 7 Andrew C 53 1 5. Your answer is of no help to him unless instead of lying he just doesn’t know how to write in English correctly.

LED Digit Driver

Vgsth is about 2. Anindo Ghosh 46k 7 84 The question is, what is a good way to drive them? And can anyone please recommend a transistor that would effectively allow me in this situation to create a switch to drive the white LED with the use a 5V signal and a 7. Home Questions Tags Users Unanswered. I used that because I have it ready in my components box: Lex if the actual Vgs th is just a little higher which I suspect it is it’ll be too deep in the linear region to conduct enough current.

In that event, “Licensee” herein refers to such company.


Neither this Agreement, nor any of the rights or obligations herein, 2n702 be assigned or transferred by Licensee without the express prior written consent of ON Semiconductor, and any attempt to do so in violation of the foregoing shall be null and void. For so few digits, I may end up biting the bullet and using discrete PNP’s. Home Questions Tags Users Unanswered.

Licensee shall not distribute externally or lev to any Customer or to any third party any reports or statements that directly compare the speed, functionality or other performance results or characteristics of the Software with any similar third party products without the express prior written consent of ON Semiconductor in each instance; provided, however, that Licensee may disclose such reports or statements to Licensee’s consultants i that have a need to have access to such reports or statements for purposes of the license grant of this Agreement, and ii that have entered into a written confidentiality agreement with Licensee no less restrictive than that certain NDA.

Then important point here is that the FET is controlled by the gate-to-source voltage, not the gate-to-ground voltage. Email Required, but never shown.

In this circuit the 5V will be between gate and source which will turn the NMOS full on which is what you need. I am measuring with the scope and I can see 5V at the gate but there is no voltage drop at the load.

Licensee agrees that it shall comply fully with all relevant and applicable export laws and regulations of the United States or foreign governments “Export Laws” to ensure that neither the Content, nor any direct product thereof is: This Agreement, including the Exhibits attached hereto, constitutes the entire agreement and understanding between the parties hereto regarding the subject matter hereof and supersedes all other agreements, understandings, promises, representations or discussions, written or oral, between the parties regarding the subject matter hereof.


By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Post as a guest Name. Sign up using Facebook. Email Required, but never shown. High saturation current capability.

2N7002: N-Channel Enhancement Mode Field Effect Transistor 60V, 0.115A, 7.5Ω

Please allow lled days for a response. Possible Analog vs chassis ground issue? I know I could do this differently but I just would like to understand the reason.

Interesting simulation results on this one. Post as a guest Name. Sign up using Email and Password. Within 30 days after the termination of the Agreement, Licensee shall furnish a statement certifying that all Content and related documentation have been destroyed or returned to ON Semiconductor.