i.MX ProcessorsのトピックRe: About charged using LICELL

About charged using LICELL

okamotosatoshi — Mon, 20 Jun 2016 08:39:25 GMT

It is charging of the coin battery in MMPF0200.

VIN is supplied always 4.2V.

Coin Cell (LICELL) is connected to the coin battery "ML-621S / DN".

(Coin Cell is about 2.1V)

Document Number: MMPF0200　Rev. 6.0, 3/2015

　P77 VSNVS LDO/Switch

In this case, we want information about the following two points.

①During OFF mode, Can continue to charge the coin battery?

　After the transition to the OFF mode, the voltage of the coin battery will decrease.

②During the OFF mode, even if VIN is always input will be discharged from the coin battery.

　Selection of the VIN and Coin Cell will switching to physical? (using "Input Sense/Selector")

The following state has been confirmed.

When cutting the Coin the Cell, voltage of the coin battery is not reduced.

When cutting the VSNVS, voltage of the coin battery is not reduced.

If the Coin Cell and VSNVS is connected, the voltage drop of the coin battery is made early.

Regards,

-satoshi

igorpadykov — Tue, 21 Jun 2016 00:24:14 GMT

Hi Satoshi

in the OFF state, coin cell charging is not available

Best regards

igor

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okamotosatoshi — Tue, 21 Jun 2016 02:31:24 GMT

Hi, igor

Thank you for answering.

When the OFF mode, it was understood that the charge is stopped.

2 might cause for coin battery not fully charged.

Try a little more experimental.

Regards,

-satoshi