ZHCSIV9F September 2009 – October 2018 TPS386000 , TPS386040
PRODUCTION DATA.
Select the pullup resistors to be 100 kΩ to ensure that VOL ≤ 0.4 V.
Use Equation 8 to set CT = 22 nF for all channels to obtain an approximate start-up delay of 100 ms.
Select RSnL = 10 kΩ for all channels to ensure DC accuracy.
Use Equation 1 through Equation 5 to determine the values of RSnH and RS4M. Using standard 1% resistors, Table 8 shows the results.
| RESISTOR | VALUE (kΩ) |
|---|---|
| RS1H | 32.4 |
| RS2H | 25.5 |
| RS3H | 18.7 |
| RS4H | 14.3 |
| RS4M | 1 |
The FPGA does not have a separate watchdog failure input, so a legacy connection is used by connecting WDO to MR.