Part Number: TPS2121 Other Parts Discussed in Thread: TPS2115A-Q1
Automotive Grade TPS2121?
Any equivalent to the TPS2121 or similar automotive grade component? other than TPS2115A-Q1, I need help connecting 2 power supplies (Master-slave), one 12V (master…
Hi Sam,
A couple of things caught my attention while looking at your videos: -It looks like CP2's voltage does not dip during switchover, so the battery/IN2 looks stable. -The bottom resistor divider portion of PR1/CP2 looks to be rather high - we recommend…
Part Number: TPS2121 Hello, good morning. I need help; I set up this configuration for an input power supply of 5V and an auxiliary supply (btvcc) of 5V. Initially, it worked perfectly for 8 hours, and suddenly, it stopped delivering the required current…
Part Number: TPS2121 Hello...
I am using the above with a Solar Cell as Primary and a Battery as secondary. I would like to multiply your resistance numbers used in OV, CP and PR in the datasheet by 10 or even 100 to reduce current loss (ie 5k to 50k,…
Part Number: TPS2121 Does the voltages I set up on CP2 and PR1 have any affect on the over-voltage reference? I would like to use the internal reference 1.06V for over-voltage while at the same time have external divider on CP2 > Vref internal ....I am…
Part Number: TPS2121 Hello, We are currently in the process of selecting a suitable Source Selection IC for our project, and we came across the TPS2121RUXR. However, after reviewing its specifications, we observed that it has a current capacity of 4.5A…
Part Number: TPS2121 Hi Sir,
I want to ask some questions about TPS2121 with VQFN package,
1. What is the maximum voltage rating of the Css(soft-star capacitor) on pin 11 of the TPS2121?
2. How to estimate the slew-rate If the value of Css is not listed…
Part Number: TPS2121 Hello...
Could someone at TI please give me a sanity check on the resistor values I have chosen for my design (Solar Cell on Primary (IN1), 2S Li-Ion on Secondary (IN2)).
My thought is using XVREF until I fall below this then the internal…
Hi Jimmy,
I apologize for the delay, and thank you for sending detailed waveforms.
I have two suggestions:
1. Add a load switch ( LM73100 is the only one we have that can support 20+V) that has a controlled slew rate upon startup, and enable it just before…