ADP1050ACPZ-R7 datasheet(90/93 Pages) AD

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Data Sheet

ADP1050

MANUFACTURER SPECIFIC FAULT FLAG REGISTERS

Table 162. Register 0xFEA0—Flag Register 1 and Register 0xFEA3—Latched Flag Register 1 (1 = Fault, 0 = Normal Operation)

Bits

Bit Name/Function

R/W

Description

Register1

Action1

CHIP_PASSWORD_UNLOCKED

Chip password is unlocked.

None

PGOOD

At least one of the following flags has been set:

VOUT_OV_FAULT, VOUT_UV_FAULT, OT_FAULT,

OT_WARNING, VIN_UV_FAULT, IIN_OC_FAST_FAULT,

POWER_OFF, CRC_FAULT, SOFT_START_FILTER,

or POWER_GOOD. Some of the flags are maskable according

to Register 0xFE0D.

0xFE0D

and

0xFE0E

PG/ALT pin

set low

IIN_OC_FAST_FAULT

An input overcurrent fast fault is triggered.

0xFE1F

Programmable

Reserved

Reserved.

N/A

CS3_OC_FAULT

A CS3 overcurrent fault is triggered.

0xFE6A

Programmable

[2:1]

Reserved

Reserved.

N/A

VDD_OV

VDD is above the OVLO limit. The I2C/PMBus interface

remains functional, but power conversion stops.

0xFE05

Programmable

N/A means not applicable.

Table 163. Register 0xFEA1—Flag Register 2 and Register 0xFEA4—Latched Flag Register 2 (1 = Fault, 0 = Normal Operation)

Bits

Bit Name/Function

R/W

Description

Register1

Action1

[7:3]

Reserved

Reserved.

N/A

VIN_UV_FAULT

VIN reading is below the VIN_OFF limit.

0xFE29

Programmable

SYNC_LOCKED

Cycle-by-cycle synchronization starts.

N/A

Programmable

FLAGIN

FLAGIN flag (SYNI/FLGI pin) is set.

0xFE12

Programmable

N/A means not applicable.

Table 164. Register 0xFEA2—Flag Register 3 and Register 0xFEA5—Latched Flag Register 3 (1 = Fault, 0 = Normal Operation)

Bits

Bit Name/Function

R/W

Description

Register1

Action1

CHIP_ID

In the ADP1050, this bit is 0.

N/A

PULSE_SKIPPIING

Pulse skipping mode is in use.

0xFE69

Programmable

[5:4]

Reserved

Reserved.

N/A

EEPROM_UNLOCKED

The EEPROM is unlocked.

N/A

None

CRC_FAULT

The EEPROM contents that were downloaded are incorrect.

N/A

Immediate

shutdown

Modulation

Digital compensator output is at its minimum or maximum

limit.

N/A

None

SOFT_START_FILTER

The soft start filter is in use.

N/A

None

N/A means not applicable.

Rev. A | Page 89 of 92

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