MP2662 Interrupt Pin

Battery Management
1

Hello, can you confirm that the INT pin on the MP2662 is open-drain? And that it is okay to pull it up to 3.3V (host Vdd) rather than MP2662 Vdd?

2

Hello Jake,

Apologies for the delayed response here.

I can confirm that the SDA and SCL serial interface pins are open drain after reading through the datasheet, but not necessarily explicit for the INT pin (so I can see why you would ask).

Usually the INT (interrupt signals) are often configured as open-drain outputs to allow multiple peripheral devices may connect to a single interrupt line. Let me verify that this is the case here and I’ll get back to you.

3

As for question of the INT pin being pulled up to the host VDD as opposed to the MP2662 VDD, I believe this is recommended by the typical application schematic (so that should be absolutely fine):

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Best,

Krishan