ADP1048ARQZ-R7 datasheet(81/84 Pages) AD

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Data Sheet

ADP1047/ADP1048

Rev. 0 | Page 81 of 84

IBAL CONFIGURATION REGISTER (ADP1048 ONLY)

Table 160. Register 0xFE95—IBAL Configuration (ADP1048 Only)

Bits

Bit Name

R/W

Description

IBAL disconnect

R/W

1 = disconnect the output of the current balance block from the PWM outputs.

0 = connect the output of the current balance block to the PWM outputs.

IBAL at load transient

R/W

0 = disable current balancing when the fast loop is triggered.

1 = enable current balancing when the fast loop is triggered.

It is recommended that this bit be set to 0.

[5:4]

RSVD

Reserved.

IBAL at low power

mode

R/W

1 = disable current balancing under low power mode if the output of the current balancing

block reaches the limit.

0 = enable current balancing under low power mode even if the output of the current

balancing block reaches the limit.

It is recommended that this bit be set to 1.

[2:0]

RSVD

Reserved.

DEBUG FLAG REGISTERS

Table 161. Register 0xFE96—Debug Flag 0

Bits

Bit Name

R/W

Description

OT_WARN

1 = measured temperature is above the value of OT_WARN_LIMIT.

OT_FAULT

1 = measured temperature is above the value of OT_FAULT_LIMIT.

TEMPERATURE

1 = temperature fault or warning.

UNKNOWN

1 = fault or warning not listed in Register 0x79, Bits[15:1].

MFR_FAULT

1 = manufacturer-specific fault or warning (Register 0xFE80, Register 0xFE81, Register 0xFE82).

PSON

1 = PSON signal (hardware or software) is inactive.

PGOOD

Power good. This flag is a programmable combination of other internal flags and refers to the

condition of the output voltage. A value of 1 means that the output of the PGOOD pin is low.

AC_OK

This flag is a programmable combination of other internal flags and refers to the condition of

the input voltage. A value of 1 means that the output of the AC_OK pin is low.

Table 162. Register 0xFE97—Debug Flag 1

Bits

Bit Name

R/W

Description

EEPROM_UNLOCKED

1 = EEPROM is unlocked and its contents can be written.

EEPROM_CRC

1 = downloaded EEPROM contents are incorrect.

I2C_ADDRESS

1 = the resistor on the ADD pin has a value that can cause an error in the address assignment

(the address falls too close to the threshold between two addresses).

FAST_LOOP

1 = fast loop compensation filter is in use.

MAX_MODULATION

1 = maximum modulation limit is reached.

MIN_MODULATION

1 = minimum modulation limit is reached.

SOFT_START

1 = system is in soft start sequence; fast loop filter is in use.

SYNC_LOCK

1 = external synchronization frequency is locked.

Table 163. Register 0xFE98—Debug Flag 2

Bits

Bit Name

R/W

Description

VIN_UV

1 = general input undervoltage fault (same as Register 0x7C, Bit 4).

VIN_LOW

1 = VAC is lower than VIN_OFF (Register 0x36). This signal shuts down the power supply.

VIN_UV_FAULT

1 = input voltage on VAC is smaller than the value in VIN_UV_FAULT_LIMIT (Register 0x59).

VIN_UV_WARN

1 = input voltage on VAC is smaller than the value in VIN_UV_WARN_LIMIT (Register 0x58).

LOW_LINE

1 = input voltage is higher than the high line threshold.

BROWN_OUT

1 = VAC is lower than the value stored in VIN_ON (Register 0x35).

CML

1 = communications, memory, or logic fault.

VDD_3.3V_OV

1 = an overvoltage condition is present on the VDD rail.

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