Part Number: TLV7031 Other Parts Discussed in Thread: TLV3491 , TLV3201 , TLV7011 , LM393-N , TLV9031 , TLV9032 Hi,
i built a 60 Hz zero crossing prototype circuit for 220 VAC mains power, but the output of TLV7031 comparator are not at 50% duty cycle.
I tested…
Might work,
1. The TLV7211 only goes to 15V supply, not enough here
2. The relatively recent 40V TLV1805 should work, but is $0.26/1k vs. $0.17/1k for the TLV9031
3. The really old TL331B, not sure about that open collector output for both swing polarities…