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Part Number: TPS3808
I'm looking for a solution which has better reset delay time accuracy than TPS3808.As described on the datasheet, TPS3808 has 40% accuracy, but I need to find <30% accuracy due to the specific application requirement.The typical reset delay time is 800msec.Is there any good idea to solve it?Thanks in advance.Shinya SawamotoTI Japan East area FAE
Do you know the temperature range and VDD supply voltage for your application? This will help me find a good fit for you.
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In reply to Michael DeSando1:
In reply to Shinya Sawamoto:
Please take a look at the TPS3890, which has a tighter accuracy on the CT pin charge current and CT pin comparator threshold voltage
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In reply to Antony Pierre Carvajales:
Do you have any other good proposal?If not, I'll give up this socket and will close this discussion.
The TPS3890 is the closest solution. I did the calculation using 800ms as the nominal value and obtained +-34% which is closer to the 30% target.
If the reset accuracy has to be less than >30% they should consider using a 5% tolerance capacitor
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