BQ20Z70-V160: device sleep mode

Suresh Daravath

Part Number: BQ20Z70-V160

Hello,

what is sleep mode command to reduce the power dissipation by the device. can we send a command from SMBus? if so what is the command.

Thanks,

Suresh

over 5 years ago

0 Wyatt Keller over 5 years ago

TI__Guru** 105760 points

Hello Suresh,

There is a sleep mode command at the bottom of page 47 in the TRM: www.ti.com/.../sluu250a.pdf

Sincerely,

Wyatt Keller

0 Suresh Daravath over 5 years ago in reply to Wyatt Keller

Prodigy 101 points

Hi wyatt,

Thanks for information.

I find this Sleep(0x0011) mode command however can you please guide me how to enter this command SMBus?

Thanks,

Suresh

0 Kang Kang over 5 years ago in reply to Suresh Daravath

TI__Mastermind 24870 points

Hello Suresh,

It is on the technical reference manual.

However, here's the sequence. Send 0x00 to 0x00 and 0x11 to 0x01.

Please refer to the standard i2c protocol on i2c write word.

0 Suresh Daravath over 4 years ago in reply to Kang Kang

Prodigy 101 points

Hello Kang,

I tried sending these sequence in Manufacturer Accesses but still doesn't work.

do you think these commands has to follow Pro (Advanced)?

0 Wyatt Keller over 4 years ago in reply to Suresh Daravath

TI__Guru** 105760 points

Hello Suresh,

Yes, use the advanced pro tab to send the commands. Also make sure the gauge is in full access mode and after sending the command don't communicate with the gauge for 1 minute otherwise it will not enter sleep mode.

There are also conditions that will exit the gauge from sleep mode in section 2.5.3 Sleep Mode.

Sincerely,

Wyatt Keller

0 Suresh Daravath over 4 years ago in reply to Wyatt Keller

Prodigy 101 points

Hi Wyatt,

The Gauge is in full access mode

Can you send send the sequences in advanced pro. I'm not sure which sequences I have to use Read SMB Word, Write SMB Word, and Send SMB Command to force the device in sleep mode.

Regards,

Suresh

0 Wyatt Keller over 4 years ago in reply to Suresh Daravath

TI__Guru** 105760 points

Hello Suresh,

I would follow the steps Kang outlined. Can you send a screenshot of your communication tab interface? We currently don't have quick access to test on boards.

Sincerely,

Wyatt Keller