Part Number: VOLT-DIVIDER-CALC It is hard to believe that a design aid as poor as "VOLT-DIVIDER-CALC" should exist on TI's otherwise excellent web site.
1) The first thing I noticed is that it often gives answers that are plain wrong. For…
Hello Foong Wei Seng,
Here you can find the accuracy of the feedback node in PFM as well as in CCM: TPS63070 datasheet | TI.com
The output accuracy is dependent on the feedback node accuracy and the resistor divider accuracy. This tool helps to calculator…
Hi Dominykas,
Could you give me some additional design specs: Vin: 4.2V Vout: ?? Max Load: ??
Based on the feedback divider selected, the target output voltage would be below the input voltage, so the device never becomes active.
We also have a quickstart…
Part Number: BOOSTXL-DRV8320RS Hello, We are using the BOOSTXL-DRV8320RS and TMS320F28004x with a very small low power motor, roughly 1.8 watts. The motor voltage is 12V and draws roughly 0.15 amps @ 4000 rpm. Max motor current is 0.620 amps.
I see that…
Hello Matthew,
I am already configured with a 32-pin package, and it is working as an external voltage reference. However, it is not functioning properly. When I apply a voltage of 30 volts, it reads between 25 and 26.9 volts. I measured the divider voltage…
Hello Tamura,
The evaluation module will output 29V in it's default state. This setting is for charging a 7S battery. To change this setting, you'll need to change the FB voltage divider. You can do this by changing R64 in the image you sent. …
I have four test points on the BQ76952 to monitor the CHG(and PCHG) and DCHG(PDCHG) pin voltages that drive the gates of respective MOSFETS. Currently, I am using a voltage divider circuit to provide the six cells inputs to the BQ.
In Test mode when i…
Hi Ethen,
Ethan Galloway said: 1. Over voltage limit is set by the ACUV/ACOV voltage divider. You can check the BQ25756 design calculator for information on the correct setting: https://www.ti.com/tool/download/BQ25756-DESIGN-CALC/
Question: Do you mean…
Part Number: LMR51450-CALC Other Parts Discussed in Thread: LMR51450 , LMR51440 , LMR51410 Tool/software: Hi, I'm adjusting the response of a LMR51450, but the calculation tool provided for this part keeps crashing on Excel with runtime error '1004', on…