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TLV3603: Dual power supply questions

Kailyn Chen

Genius 9560 points

Part Number: TLV3603

Hello，

If I use the single power supply of TLV3603 with 30mV hysteresis, it could work normally, but if I used +-2.5V power supply, input is +-2V sine, and reference is GND, the output is always high.

TLV3603 is rail to rail input and output, so the input meet the input voltage range, I wonder why its output is abnormal when using dual power supply.

Best regards

kailyn

+1 Clemens Ladisch 6 months ago

Guru 259820 points

This might be an error in the model (using 0 V instead of the VEE pin). Try with 0V/2.5V/5V instead.

0 Kailyn Chen 6 months ago in reply to Clemens Ladisch

TI__Genius 9560 points

Dear Clemens,

Thank you very much for your reply, I have tried single power supply with 1/2Vcc reference, the output is normally.

Best regards

kailyn

0 Chi Nguyen1 6 months ago in reply to Kailyn Chen

TI__Genius 11701 points

Thanks Clemens, going to look into this issue for the split supply case and update the model on the web as soon as we can