ADP1048WARQZ-R7 datasheet(81/82 Pages) AD

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Data Sheet

ADP1048W

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.

Table 164. Register 0xFE99—Debug Flag 3

Bits

Bit Name

R/W

Description

VIN_OV_FAULT

1 = input voltage on VAC is larger than the value in VIN_OV_FAULT_LIMIT (Register 0x55).

VCORE_OV

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

PIN_OP_WARN

1 = input overpower warning.

AC_PERIOD

1 = controller is not able to detect the ac line period; the maximum value of the period is used

and this flag is set.

IIN_OC_WARN

1 = input current measured on the CS ADC is larger than the value in IIN_OC_WARN_LIMIT

(Register 0x5D).

IIN_OC_FAULT

1 = input current measured on the CS ADC is larger than the value in IIN_OC_FAULT_LIMIT

(Register 0x5B).

FAST_OCP

1 = the threshold set for the comparator on the ILIM pin has been crossed.

INPUT

1 = input voltage, input current, or input power fault or warning.

Table 165. Register 0xFE9A—Debug Flag 4

Bits

Bit Name

R/W

Description

OLP

1 = one of the two voltage dividers is probably disconnected or malfunctioning.

FAST_OVP

1 = the threshold set for the comparator on the OVP pin has been crossed.

VOUT_UV_FAULT

1 = output voltage is below the VOUT_UV_FAULT_LIMIT (Register 0x44).

VOUT_UV_WARN

1 = output voltage is below the VOUT_UV_WARN_LIMIT (Register 0x43).

VOUT_OV_WARN

1 = output voltage is above the VOUT_OV_WARN_LIMIT (Register 0x42).

VOUT_OV_FAULT

1 = output voltage is above the VOUT_OV_FAULT_LIMIT (Register 0x40).

VOUT_OV

General output overvoltage fault: this flag is a combination (OR) of any output overvoltage flag

(Register 0x7A, Bit 7 and Register 0xFE80, Bit 4 (FAST_OVP)).

VOUT

1 = any fault on output voltage (overvoltage, undervoltage, fast OVP, or accurate OVP).

Table 166. Register 0xFE9B—Debug Flag 5

Bits

Bit Name

R/W

Description

[7:3]

RSVD

Reserved.

LOW_POWER

1 = input power has dropped below the threshold for low power mode operation.

VDD_3.3V_UV

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

INRUSH

1 = INRUSH control relay is off.

Rev. 0 | Page 81 of 82

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