Other Parts Discussed in Thread: TMP63-Q1 Is there a solution for over temperature protection using a comparator with external hysteresis? My automotive design requires the comparator output to toggle high when a temperature of 100C is reached. I would…
Part Number: ADS1120 I have the following circuit to measure four 10K thermistors. My plan was to measure them using the external reference so the source voltage wouldn't be a factor in the temperature calculation. However I feel like I should be using…
Hi Vasyl,
Apologies I am not a thermistor expert and therefore I do not have a specific SMD type thermistor to recommend for your design.
Best Regards,
Garrett
Hello,
I would recommend placing a resistor in series and parallel to modify the threshold of your 10k thermistor going to 4k at 45C such that the TS voltage is below VTS-60°C at that time. This will require some theoretical iteration to meet your desired…
Hi Saeed,
Could you provide the design requirements or schematic you had with the RTD module.?
RTD is PTC, and thermistor is NTC. Are you referring to thermistor sensing element for the application? Please specify and I need to know the NTC type, accuracy…
Mohammed,
In order to use TMP61 you need to bias it with either a voltage divider or a current source as seen below:
In this configuration, you can calculate temperature by referring to the "4th order polynomial TMP vs Vdc" page found in the thermistor…
Part Number: BQ79600-Q1 Other Parts Discussed in Thread: BQ79616-Q1 , BQ79606A-Q1 On page 235 and 236 of the datasheet for this device several equations that can be used to design a circuit which attempts to help linearize NTC thermistor output. I'm struggling…
Hello,
Can you please tell me how you have this register configured?
Also, can you please tell me where these thermistors are located on the layout design?
Regards,
Anthony Baldino
Hi Dennis,
Please see my comments below.
What is the reasoning for connecting PMID to the output of the buck boost converter? From what I can understand it does not seem necessary. The input 'VBUS_FILT' net label is already shared between the buck boost…
Hi Patrick,
1. Noted on the small charging current for charging secondary battery through VOUT. Also understand that VIN1 and VIN2 cannot be connected to VOUT at the same time. These give us a few issues: a. Our charging pin for the main battery would…