L9963E datasheet(13/184 Pages) STMICROELECTRONICS

13 / 184 page

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

IREG_GPIO_DIGOUT

Delta current from VREG pin needed to use 1 GPIO

as digital output.

0.4

0.8

1.2

Average DC current consumption in application can be estimated according to the following equations:

Estimation of the average DC current consumption in application

IAVG= IBATNORMADC+IREGNORMADC+NBAL14IBATBALANCE+IREGGPIODIGOUTNDIGOUT ×WCONV

+IBATNORM+IREGNORM+NBAL14*IBATBALANCE+IREGGPIODIGOUTNDIGOUT ×WBAL_OL+ILP×WLP

WCONV=2TCYCLEADCSLEEP

TPERIOD + TCYCLEADC000

NCYCLEGPIOTPERIOD+TGPIOOPENSET+TCYCLEADC000

NCYCLEGPIOTERMTPERIOD

+2TCxOPENSET+2TCYCLEADC000

NCYCLECELLTERMTPERIOD + 3TCYCLEADC000

NCYCLEHWSCTPERIOD

WBAL_OL= 2TBALOL

NCYCLEBALTERMTCYCLESLEEP

WLP=1−WCONV−WBAL_OL

TPERIOD= TCYCLE_SLEEP if Cyclic Wakeup mode is activated

TCYCLE if operating in Normal mode

IREGNORMADC= IREGNORMADCCSEN0 if CSA is disabled

IREGNORMADCCSEN1 if CSA is enabled

IREGNORM= IREGNORMCSEN0 if CSA is disabled

IREGNORMCSEN1 if CSA is enabled

ISLEEP= IBAT_SLP if NBAL=0

IBAT_SLP_BAL_CONF if NBAL>0

ILP= ISLEEP+NBAL14×IBATBALANCE if Cyclic Wakeup mode is activated

IBAT_NORM+IREGNORM+NBAL14×IBATBALANCE+IREGGPIODIGOUTNDIGOUT if operating in Normal mode

(1)

L9963E

Power management

DS13636 - Rev 12

page 13/184

L9963E Datasheet(PDF) 13 Page - STMicroelectronics