Martin,
The datasheet mentions the current source to charge the timing capacitor can vary +/- 15% so that is one source of error. Also, the reference voltage varies approx. +/- 5%. And once the capacitor charges, it discharges to about 0.6V not completely…
Other Parts Discussed in Thread: TPS3808 Hello.
It's a question about TPS3808G25.
Power ON Sequence
3.3V RESET OPEN Drein pin ⇒ 2.5v VDD、SENCE pin
Isn't there damage in IC by this sequence?
Thank you.
TPS3808.pdf
Part Number: AM5728 Other Parts Discussed in Thread: TPS3808
Tool/software: Linux
As shown, all power supply is normal, the problem is that the RSTOUTn has been in the cycle reset
The following figure, POWERGOOD output is normal, TPS3808 normal…
Scott,
I would recommend the TPS3831 since this is nano-powered and has the same functionality. The reset delay is fixed to 200ms. For 15ms delay, I recommend TPS3836 for nano-power or TPS3808 which has multiple voltage options including adjustable…
Rajneesh,
It appears that you are mostly implementing the same solution as in the AM571x Industrial Development Kit (IDK) at .
Please review all of the discussion about the PORz workarounds in the TMDXIDK5718 User Guide and the other issues mentioned…
Oliver,
I do not see any problem using a larger capacitor for a 10s delay. We do not test at this large delay so you must test the device over operating conditions to validate the long delay use case. We have TPS3808 and TPS3890 which are both tested…
Tateo,
TPS3895 has sense threshold of 0.5V typical (0.495V MIN, 0.505V MAX).
TPS3808G01 (the G01 is the adjustable version) has sense voltage of 0.405V typical so maybe this is better? What threshold do you want to sense exactly? If 0.5V, I would…
Part Number: TPS3803 Dear Sir, good morning
I use TPS3803-01
I have battery power supply 2.5 - 4 V. I need to set a trip point 2.7 V and I'd like to add a hysteresis in TPS3803-01
QUESTION: Can I use this application (please see attach) for TPS3803…
Kazuya,
The device reset should not be chattering like that. Has this been observed on multiple devices?
Also, since Customer is evaluating devices for new product, I would recommend them look at TPS3808 or TPS3890. These devices are voltage supervisors…
Bogey,
I recommend TLV803 which is also open-drain and low cost. You can also use TPS3890 which is open-drain has the manual reset feature (/MR) and programmable delay. TPS3808 will also work.
TPS3838-Q1 link is here:
www.ti.com/.../TPS3838-Q1…
