DA9021 datasheet(60/142 Pages) DIALOG

60 / 142 page

DA9021/22

System PMIC with high efficiency USB power manager

Datasheet

Revision 2.5

17-Feb-2017

CFR0011-120-00 Rev 5

60 of 142

Table 36: Wakeup events

Signal / Condition

Wakeup

User

event

System

event

IRQ

Charger attach: E_VBUS_DET

Charger removal: E_VBUS_REM

VDDOUT low prewarning: E_VDD_LOW

RTC alarm: E_ALARM

Sequencing finished: E_SEQ_RDY

Voltage comparator: E_COMP_1V2

Pressed On key: E_nONKEY

End of battery charging: E_CHG_END

Battery temperature: E_TBAT

Manual ADC result ready: E_ADC_EOM

GPIOs: E_GPIx

ADC 4, 5, threshold: via GPI01

SYS_EN, PWR_EN, PWR1_EN (passive to active transition):

via GPIO8, 9, 10

HS-2-wire interface: via GPIO14

13.6.3

Power supply sequencer

The start-up of DA9021/22 supplies is performed with a sequencer that contains a programmable

step timer, a variable ID array of time slot pointers and four predefined pointers (SYSTEM_END,

POWER_END, MAX_COUNT and PART_DOWN). The sequencer is able to control up to 14 IDs (3

buck converters, 5 LDOs, 4 feedback pin level controls, a Wait ID (GPI10) and a POWERDOWN

and their borders are described by the location pointers SYSTEM_END, POWER_END and

MAX_COUNT.

The lowest level power domain SYSTEM starts at step one and ends at the step that is described by

the location pointer SYSTEM_END. The second level domain POWER starts at the successive step

and ends at POWER_END. The third level domain POWER1 starts at the consecutive step and ends

at MAX_COUNT. The values of pointers SYSTEM_END, POWER_END and MAX_COUNT are

predefined in OTP registers and should be configured to be SYSTEM_END < POWER_END <

MAX_COUNT.

The domain SYSTEM by can be understood as a basic set of supplies that are mandatory to

maintain the application in (at least) a standby/hibernate mode. If enabled via control OTPREAD_EN

all supplies of DA9021/22 and the sequencer timer (registers R14 and R43 to R61) are configured

with the default value from OTP before powering up the domain SYSTEM. This will cause a

reconfiguration of all supplies that have been powered down with a preset voltage level.

The second level domain POWER includes additional supplies required to power the main

application and to set DA9021/22 in to ACTIVE mode.

POWER1 can be understood as a subdomain of POWER that can be used for additional

hardware/software initiated control of supply blocks during ACTIVE mode (for example for a sub-

application like WLAN or GSM baseband). Supplies in domain POWER and POWER1 can be

voltage pre-configured and by that sequentially changed during powering down, but will not be reset

to their default values from OTP unless there is a power-up from domain SYSTEM.

NOTE

Running applications should be configured to ACTIVE mode (domain POWER is up) and pointer POWER_END

has to be at least one time slot higher than SYSTEM_END.

DA9021 датащи(PDF) 60 Page - Dialog Semiconductor

DA9021 датащи(HTML) 60 Page - Dialog Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL