STPMIC1APQR datasheet(53/140 Pages) STMICROELECTRONICS

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Table 11. Turn-on description

Name

Turn-ON

condition

source

Configuration

Active condition

description

Debounce

Interrupt

PONKEY

PONKEYn

N/A

Active low

30 ms

PKEY_RI/PKEY_FA in

INT_PENDING_R1

VBUS

(VBUSOTG)

VBUSOTG

Can be disable by

settingVBUSOTG_DET_DIS bit

in Table 48. BST_SW_CR

VBUSOTG >

VBUSOTG_Rise

30 ms

VBUSOTG_RI/

VBUSOTG_FA in

INT_PENDING_R1

VBUS

(SWOUT)

SWOUT pin

Can be disable by setting

SWOUT_DET_DIS bit in

Table 30. SW_VIN_CR

SWOUT >

SWOUT_Rise

30 ms

SWOUT_RI/

SWOUT_FA in

INT_PENDING_R1

WAKEUP

WAKEUP pin

N/A

Active high

debounce

WKP_RI/WKP_FA

INT_PENDING_R1

The STPMIC1 manages 2 different scenarios depending if the turn-ON condition is active before or after VIN rises

above VIN_POR_Rise.

Active Turn-ON condition after VIN rises above VIN_POR_Rise sequence is presented in Figure 57. Turn-on

condition after VIN_POR_RISE.

Figure 57. Turn-on condition after VIN_POR_RISE

t1: VIN rises above VIN_POR_Rise while no turn-ON condition is detected active. The STPMIC1 performs the

PRELOAD_NVM and swiches to OFF-state.

t2: the STPMIC1 starts detecting the activity on turn-ON condition but the detection threshold above is not stable.

t3: turn-ON signal has been detected stable longer than debounce time. Turn-ON event triggered. Switch to

CHECK&LOAD then POWER_UP as VIN > VINOK_Rise.

t3 to t4: turn-ON conditions are ignored from CHECK&LOAD to POWER_ON.

t4: turn-ON condition is ignored and does not affect the usual STPMIC1 behavior in POWER_ON. (Except

PONKEY long key press. See Section 5.4.3 Turn-OFF conditions and restart_request). Active turn-ON signal

does not prevent from POWER_DOWN.

t5: active turn-OFF condition event occurs from a valid source. Switch to POWER_DOWN.

t5 to t6: active turn-ON during POWER_DOWN is ignored.

t7: New turn-ON signal rising edge has been detected after debounce time. A valid turn-ON condition is detected.

The STPMIC1 switches to POWER_UP.

STPMIC1

Feature description

DS12792 - Rev 7

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