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2065490_en-US
2065490_en-US
Hi,
In the datasheet of TJA1029 at pg no: 11, we could find Vhys hysteresis voltage max mentioned as 400mV
How to use this data for logic level compatibility check with other ICs? What is the use of this hysteresis voltage being mentioned?
Should we do like below?
VIH = 2V + 0.4V = 2.4V
VIL = 0.8V - 0.4V = 0.4V
Please guide
Thanks,
Sri Viswa
Hi,
The hysteresis voltage is used to ensure noise immunity and stable operation. It ensures that the input signal has a clear margin to avoid false triggering due to noise. You do not need to adjust VIH and VIL using the hysteresis voltage. Instead, ensure that the driving IC's output levels meet the VIH and VIL requirements of the TJA1029TK.
BRs, Tomas
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