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Original question:

TPS659037: Vcc slew rate and LDORTC OFF period

TPS659037: POR generation condition

Yuto Sakai
Mastermind 6100 points
Part Number: TPS659037

Hi,

From the application note (SWCA302A), I understand that there are three conditions for POR generation.
• The VCC1 supply has a falling slew rate less than 90 mV/ms between 1.9 V and 1.8 V.
• The VCC1 supply has a rising slew rate less than 90 mV/ms between 1.8 V and 1.9 V.
• The LDOVRTC_OUT pin voltage is discharged to less than 100 mV, with an off time of at least 300ms.

I believe that POR can be generated if any of these three conditions are met.
Is it correct?

Best regards,
Yuto Sakai