AFE3010: Schematic Review Required

Basit Ali Khan

Intellectual 370 points

Part Number: AFE3010

Tool/software:

Hi,

Schematic review required. Input voltage will be 240VAC. Solenoid not needed. Only ground fault detection is needed.

5 months ago

0 Guang Zhou 5 months ago

TI__Mastermind 34130 points

Hi,

Just out of curiosity - is the plan to monitor fault through ALARM pin?

The schematic looks good to me. We do recommend a snubber on the output pin as shown below. It may not be matter for this application, but just in case. The values are 500Ohm + 10nF.

Regards

Guang

0 Basit Ali Khan 5 months ago in reply to Guang Zhou

Intellectual 370 points

Hi,

Yes only fault monitoring is required and I think it can be only done through ALARM pin, correct?

0 Basit Ali Khan 5 months ago in reply to Basit Ali Khan

Intellectual 370 points

Added SCR pin monitoring to MCU. Also added zener at ALARM pin as the internal logic I believe works on 5V. Anything else that can be done to monitor fault?

0 Louis L 5 months ago in reply to Basit Ali Khan

TI__Expert 5560 points

Basit,

Guang is out of the office today but will reply when he returns on Monday, 3/31.

Louis

0 Guang Zhou 5 months ago in reply to Louis L

TI__Mastermind 34130 points

Hi Basit,

Yes the internal logic is 5V. The ground fault can be monitored on ALARM according to section 7.4.2 of the datasheet.

Regards

Guang

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AFE3010: Schematic Review Required