DA6021 datasheet(57/225 Pages) RENESAS

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DA6021

HIGHLY INTEGRATED POWER MANAGEMENT IC FOR

INTEL® ATOM™ Z3000 PROCESSOR

Company Confidential

Data Sheet

Version 3.A - Final

31-Jan-14

57 of 224

www.dialog-semiconductor.com

Cold Off

10.3.9

A Cold Off, either through a SOC request or a system event, requests DA6021 in the ‘Mechanical Off’ (SOC G3,

G3 for battery removal with no external power source) state. The system remains in this state until it receives a

wake-up event, or until platform power sources are removed.

Event

Conditions (all mandatory)

Notes

SOC Initiated Shut

Down

 SUSPWRDNACKCFG = 1

 SUSPWRDNACK = 1

 SLP_S4_B = 0

 RSMRST_B = 1

 DA6021 powers down in sequenced

order controlled by SLP_S*_B and

SUSPWRDNACK = 1 from SOC

Power Button

Held

 Power button pressed for a defined

length in FCOT[3:0] or longer (i.e. PBHT

Timer ≥ FCOT[3:0])

 After debounce time, power button are

held for at least the length defined in

FCOT[3:0] (the default is 4 seconds),

assert SDWN_B immediately. After

90us, DA6021 powers down in

sequenced order, without waiting for

SLP_S*_B from SOC

PMIC Critical

Events

 See events defined in “PMIC

Catastrophic and Critical Events

”

 Assert SDWN_B immediately. After

90us, DA6021 powers down in

sequenced order, without waiting for

SLP_S*_B from SOC

PMIC

Catastrophic

Events Except

VSYSOVP

 See events defined in “PMIC

Catastrophic and Critical Events

”

 Assert SDWN_B immediately. After

90us, DA6021 powers down, without

waiting for SLP_S*_B from SOC

VSYSOVP

 See events defined in “PMIC

Catastrophic and Critical Events

”

 Assert SDWN_B together with powering

down immediately without waiting for

SLP_S*_B from SOC

Table 21: Cold Off Triggers

Cold Off sequencing and timings are detailed in the figures and tables below.

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