Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hi
I am working with TXB0106 level translator (datasheet). While doing design, I came across page 12 in which an architecture of an I/O cell is displayed as shown below.
In page 14, it's stated that during output transition from high to low, and vice versa, output impedance will be 50 ohm...
I am definitely going to compensate for the voltage drop over the diode.
The problem now is to find a value for R1 to control the time that the cap will take to fully charge. Things are difficult because the initial charging current is currently limited to 20mA, so R1 should ideally be 200 ohm...
Re: RC circuit backup supply
Yes, the module in question consumes that amount of current on average, but it consumes a peak of 2A every 4.615 ms according the datasheet. This means that the supercap has to provide that amount of current while dropping from 4V (peak) down to 3.4V (minimum...
Re: RC circuit backup supply
A design requirement asks for a capacitor. I came across supercapacitors, but I'm not sure if they would do the trick since I didn't deal with them before. The thing is that the communication chip needs around 2 seconds to send a message to a server alarming of a...
Hi
I am working on a design involving SIM7100 communication chip (**broken link removed**). As mentioned on page 24, its supply is rated for 3.4-4.3V with maximum current consumption of 2A every 4.615ms. I have a main 4V supply designed to deliver 8.4W.
I want to design a backup power supply...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
