LP8733 datasheet(52/86 Pages) TI2

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PGOOD_POL

PGOOD_OD

PGOOD_

WINDOW_LDO

PGOOD_

WINDOW_BUC

EN_PGOOD_L

DO1

EN_PGOOD_L

DO0

EN_PGOOD_B

UCK1

EN_PGOOD_B

UCK0

Table 7-51. PGOOD_CTRL_1 Register Field Descriptions

Bits

Field

Type

Default

Description

PGOOD_POL

R/W

PGOOD signal polarity:

0 - PGOOD signal high when the monitored outputs are valid.

1 - PGOOD signal low when the monitored outputs are valid.

PGOOD_OD

R/W

PGOOD signal type:

0 - Push-pull output (VANA level)

1 - Open-drain output

PGOOD_

WINDOW_LDO

R/W

LDO Output voltage monitoring method for the PGOOD signal:

0 - Only undervoltage monitoring

1 - Overvoltage and undervoltage monitoring

PGOOD_

WINDOW_BUCK

R/W

Buck Output voltage monitoring method for the PGOOD signal:

0 - Only undervoltage monitoring

1 - Overvoltage and undervoltage monitoring

EN_PGOOD_LDO1

R/W

PGOOD signal source control from LDO1:

0 - LDO1 is not monitored.

1 - LDO1 Power-Good threshold voltage is monitored.

EN_PGOOD_LDO0

R/W

PGOOD signal source control from theLDO0:

0 - LDO0 is not monitored.

1 - LDO0 Power-Good threshold voltage is monitored.

EN_PGOOD_BUCK

R/W

PGOOD signal source control from the Buck1:

0 - Buck1 is not monitored.

1 - Buck1 Power-Good threshold voltage is monitored.

EN_PGOOD_BUCK

R/W

PGOOD signal source control from the Buck0:

0 - Buck0 is not monitored.

1 - Buck0 Power-Good threshold voltage is monitored.

7.6.1.23 PGOOD_CTRL_2

PGOOD_CTRL_2 is shown in Table 7-53, Address: 0x16

Table 7-52. PGOOD_CTRL_2 Register

Reserved - do not use

EN_PGOOD_T

WARN

PG_FAULT_GA

TES_PGOOD

PGOOD_MOD

Table 7-53. PGOOD_CTRL_2 Register Field Descriptions

Bits

Field

Type

Default

Description

7:3

Reserved - do not

use

R/W

0 0000

EN_PGOOD_TWA

R/W

Thermal warning control for the PGOOD signal:

0 - Thermal warning is not monitored.

1 - PGOOD inactive if the thermal warning flag is active.

PG_FAULT_GATES

_PGOOD

R/W

Type of operation for the PGOOD signal:

0 - Indicates live status of monitored voltage outputs.

1 - Indicates status of the PG_FAULT register, inactive when at least one

PG_FAULT_x bit is inactive.

PGOOD_MODE

R/W

Operating mode for the PGOOD signal:

0 - Gated mode

1 - Continuous mode

7.6.1.24 PG_FAULT

PG_FAULT is shown in Table 7-55, Address: 0x17

LP8733-Q1

SNVSB64A – JUNE 2019 – REVISED JUNE 2021

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