Part Number: TPS2121 Tool/software: Hi,
I use two batteries in IN1(Main) and IN2(Back up) in XREF mode. My question is what is the purpose of using a 1mega ohm resistor in ST Pin?
ST pin is Input is Output?
can I use external MOSFET to detect which power…
Part Number: TPS2121 Other Parts Discussed in Thread: TPS22950 , TPS2595 , TPS25947 Tool/software: Hi,team,
we want to choose a device to against MP5016GQH-Z and SGM2531C, which device is the most suitable one?
Could you give some suggestions?
BR
Jingguo …
Part Number: TPS2121 Tool/software: Hi,
Using TPS2121 chip for dual power switching, the following issues were found, please help analyze. 1. At the 12V end, using a switch (soft switch or hard switch) for control will result in a 5V power outage reset…
Part Number: TPS2121 Tool/software: Hello TI Team,
We would like to get the below schematics reviewed for TPS2121.
We have used two TPS2121RUXT in parallel to derive higher current rating.
Kindly review and let us know your comments ASAP.
Thanks!
Hi Jacopo,
I think this looks good, but it's important to note that you'll still need to send VSYS_PRE to another switch with a 3.4V under voltage threshold after the mux for when VBAT falls below 3.4V.
Also, you may find this app note useful. It…
Part Number: TPS2121 Tool/software: I have pretty much the same question as someone asked on this forum 4 years ago.
In the data sheet, the range of pull up resistor value to pull up the ST pin is given as 6k to 20k.
The reply given at the time was that…
Part Number: TPS2121 Tool/software: Hi All I'm using the TPS2121 to switch among 2 inputs: IN1 : 5.1V from TPS562242DRLR, Output capacitors 100uF + 22uF IN2 : USB connector 4.8 to 5.2V , Output capacitors 10uF + 4.7uF (recommended 10uF from USB spec) …
Part Number: TPS2121
Tool/software:
Hi Team,
1. Can the reverse polarity protection be simulated using PSpice for TI software?
2. Also, We checked the RPP with a diode.
Vin = 3.765V
Output voltage = -2.61V
But it should be 0V if we added a diode as in…
Hello Patrick,
Thanks for response and feedback on our comments.
Any other comment for schematic which was already added in first conversion.
We used bidirectional TVS diode at input of IC Pins. So, there will be any chances to failure/ damage of Oring…