BQ40Z80: Current Consumption During SLEEP mode

KIM

Part Number: BQ40Z80

Hi,

The BQ40Z80 current consumption during SLEEP mode is 96uA based on the data sheet.

The BQ40Z80 in SLEEP mode will wake up periodically for voltage, temperature, and current measurements to reduce power consumption.

Is the periodic voltage, temperature, and current measurements included in the 96uA current consumption?

Or the current consumption in SLEEP mode will be higher than 96uA when there is voltage/temperature/current measurement? Is the current equal to 663uA when there is voltage/temperature/current measurement?

If yes, the average current during SLEEP mode = [(Isleep x Tsleep) + (Inormal x Tnormal)] / (Tsleep + Tnormal), correct?

Thanks,

Kim

over 2 years ago

0 KIM over 2 years ago

Intellectual 550 points

Hi,

Additional query.

How long is the ADC ON, ADC Filter ON for periodic measurement?

Thanks,

Kim

0 Wyatt Keller over 2 years ago

TI__Guru** 105760 points

Hello Kim,

Yes that's correct, the values reported in all of our datasheets is the average, so most of the time the current will probably be a little lower, but there will be short pulses during the actual ADC measurements which will be much higher than datasheet reported value.

Sincerely,

Wyatt Keller

Power management

Power management forum

BQ40Z80: Current Consumption During SLEEP mode