PIFE32251B-R68MS datasheet(70/157 Pages) TI1

70 / 157 page

OFF:

VIN < UVLO

Startup:

LDO3V, LDO5V and

VREF1V25 ramp up,

OTP loads from

default

(backup battery

saves RTC register

values)

Ready:

Reference LDOs are on,

I2C is active,

Waiting for EN signals

LDO1 ON:

LDO1 (VTT)

turns on

Emergency

Shutdown:

DPWROK transitions LOW,

All rails turn off with

discharge resister ramp

down

VIN > UVLO

LDO3V and LDO5V

power goods = HIGH

ENVR3 = HIGH

DDR_VTT_CTRL = HIGH

STANDBY# = LOW

(SLP_S0#)

STANDBY# = HIGH

(SLP_S0#)

Emergency

Shutdown Initiated

Emergency

Shutdown Initiated

(VIN < UVLO) &&

(no backup

battery)

Exit Emergency Shutdown:

ACOK transitions from LOW to HIGH

or PWRBTNIN falling edge detected

Backup Battery

or G3:

All rails off, RTC =

backup battery,

RTC registers saved

VIN > UVLO

(VIN < UVLO) &&

(backup battery

present)

DSx:

VR3 (V3.3A_DSW) and

VR2 (V1.8A) turn on.

DPWROK asserted

HIGH

ENVR3 = LOW

Emergency Shutdown Initiated By:

1) VR fault, VRFAULT bit = 1

2) SW SDWN, SDWN bit = 0

3) HW SDWN, SHUTDOWN# = LOW

4) Die temp > Tc, (130°C t 160°C)

5) VIN < UVLO, (4.95V t 5.25V)

6) PWRBTNIN held, HT > FLT

S5/S4:

VR5 (V5A_DS3), LS-PGE

(V3.3A_PCH), VR1 (V0.85A &

V1.00A) turn on.

DS3_VREN, RSMRST#_PWRGD

and EC_RST# asserted HIGH

SLP_SUS# = HIGH,

At ENE and ENVR5

S3:

VR4 (VDDQ) and

LS-PGB (V1.8U)

turn on.

SLP_S4# = HIGH,

At ENB and ENVR4

S0:

LS-PGD (VCCIO) turns on.

ALL_SYS_PWRGD,

VCCST_PWRGD,

PCH_PWROK_SYS_PWROK

asserted HIGH

(SLP_S3# = HIGH, at ENF and ENG)

&& (valid 3.3V, 1.8V, and 1.0V

detected on VSE, VSF, and VSG)

STANDBY# = LOW

(SLP_S0#)

STANDBY# = HIGH

(SLP_S0#)

DDR_VTT_CTRL = LOW

SLP_SUS# = LOW or

EC_SLP_DS4 or EC_DS4 = 1

SLP_S4# = LOW

SLP_S3# = LOW

STANDBY:

DVS and Decay on

programmed rails

TPS650830

SLVSCF4A – DECEMBER 2014 – REVISED JULY 2016

www.ti.com

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Product Folder Links: TPS650830

Detailed Description

6.4

Device Functional Modes

Figure 6-16. Sequence of Function Modes - Assuming the TPS650830 Application Configuration

Connections

PIFE32251B-R68MS 데이터시트(PDF) 70 Page - Texas Instruments

PIFE32251B-R68MS 데이터시트(HTML) 70 Page - Texas Instruments

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