Part Number: UC2909-EP Hi,
Customer has a design that uses UC3909 and wants to use UC2909-EP as a replacement as they seems similar in design, when checking the difference they found a few notable differences and had a few questions for consideration…
Part Number: UC2909-EP Hi team,
My customer is developing UC2909 circuit. And I have some question about below application circuit.
In the power part topology, I think it is a Buck structure. And the MOS should be a PMOS.
When UC2909 OUT pin=0, Point…
Part Number: UC2909-EP Hi team,
My customer is using UC2909-EP. In our datasheet as below, there are 2 sets of RC connected to CAO pin and VA- pin. So can you please help explain what is the function of these RC and how to select the proper RC value…
Part Number: UC2909-EP Hello, for a new design of circuit at 24V, I need to charger a 2 batteries in serie (12V at 7Ah max) and I'm searching for a TI cheaper solution. I'm see UC2909-EP, but I note that need external mosfet. My question is: is there…
Part Number: UC2909-EP Hello， I have some questions about UC2909-EP : 1) The fist problem is about –3.9-mV/°C thermistor linearization circuit, I didn't know how it works, I didn't understand the reasons why it can control the output voltage with –3.9…
Part Number: UC2909-EP Hi,
I have a customer that is currently using the UC3909DW in their design but the device has been reported to be no longer available.
They are looking at using the UC2909-MDWREP and have a few questions that I was hoping you could…
Other Parts Discussed in Thread: UC2909-EP I have an existing design that implements UC3909DW. This part is currently obsolete. It operates up to 240kHz. Design is optimized around 220kHz.
Datasheet for UC2909-EP indicates that this IC recommended maximum…
Hello Sonoki,
To answer your questions.
1. The UC2909 vs the UC2909-EP is a change in the temperature range. Functionally the EP is the same part as the standard part only it is validated to operate over the extended temperature range. The information…
Other Parts Discussed in Thread: UC2909-EP , BQ24450 , BQ2031 , UC2906 Hello!
I need to charge three 6V in series (18V total) lead-acid cells. So, my question is: Which device do I have tu select to manage these cells properly?
UC2909-EP ?
BQ24450 ?
BQ2031…
QUESTION: Will 13.8V be maintained at the battery? A: Perhaps, depends on the state of the battery. Any time the battery voltage is is more than a few millivolts below the voltage set by R1 and R2, the current out of the LM2941 charging the battery will…
