ACT88321 datasheet(10/55 Pages) QORVO

10 / 55 page

ACT88321

Advanced PMIC with 3 Bucks, 2 LDOs, and Load Bypass Switches

Datasheet Rev. D , June 17, 2022 | Subject to change without notice

10 of 55

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Thermal Shutdown Temperature

TSD_SHUTDWN

Temperature rising

155

°C

Thermal Shutdown Hysteresis

°C

Startup Delay after initial AVIN

Time from AVIN > UVLO threshold to

start of first regulator turning On. (zero

turn on delay setting)

nSaveIQQ=1

620

750

µs

Time from AVIN > UVLO threshold to

start of first regulator turning On. (zero

turn on delay setting)

nSaveIQQ=0

920

1150

µs

Thermal Interrupt Threshold, TSD_ALERT

Temperature rising - Referenced to

TSD_SHUTDWN

- 30

°C

Thermal Interrupt Hysteresis

°C

Transition time from Deep Sleep (DPSLP)

State to Active State

Time from PWREN pin low to high tran-

sition to time when the first regulator

turns ON with minimum turn on delay

configuration.

224

500

µs

Using I2C

µs

Transition time from Active State to Deep

Sleep (DPSLP) State

Time from PWREN pin high to low tran-

sition to time when the first regulator

turns OFF with minimum turn on delay

configuration.

224

500

µs

Using I2C

µs

Transition time from Sleep State (SLEEP)

to Active State

Time from I2C command to clear sleep

mode to time when the first regulator

turns ON with minimum turn on delay

configuration.

µs

Time to first power rail turn off

Time from turn Off command to when

the first power rail turns off with mini-

mum turn off delay configuration

180

µs

Startup Delay Programmable Range

ONDLY=000

ONDLY=001

ONDLY=010

ONDLY=011

ONDLY=100

ONDLY=101

ONDLY=110

ONDLY=111

0.5

Turn Off Delay Programmable Range

OFFDLY=000

OFFDLY=001

OFFDLY=010

OFFDLY=011

OFFDLY=100

OFFDLY=101

OFFDLY=110

OFFDLY=111

0.5

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