ADP1055ACPZ-R7 datasheet(69/140 Pages) AD

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Data Sheet

ADP1055

Rev. A | Page 69 of 140

IOUT_OC_LV_FAULT_RESPONSE

The IOUT_OC_LV_FAULT_RESPONSE command instructs the device on actions to take due to an output undervoltage-in-CLM fault

condition. The device notifies the host and sets the IOUT_OC_FAULT bit in the STATUS_BYTE register, the IOUT bit in the STATUS_

WORD register, and the IOUT_OC_LV_FAULT bit in the STATUS_IOUT register.

Table 47. Register 0x49—IOUT_OC_LV_FAULT_RESPONSE

Bits

Bit Name

R/W

Description

[7:6]

Response

R/W

Determines the device response to an undervoltage-in-CLM fault condition.

Bit 7

Bit 6

Response

Do nothing.

Continue operation for the delay time (Bits[2:0]). If the fault persists, retry the

number of times specified by Bits[5:3].

Shut down, disable the output, and respond as programmed in the retry

setting (Bits[5:3]).

Disable the output while the fault is present. Operation resumes and the

output is enabled when the fault condition no longer exists.

[5:3]

Retry setting

R/W

Number of retry attempts following a fault condition. A fault condition can be cleared by a reset,

a power-off/power-on sequence, or a loss of bias power.

Bit 5

Bit 4

Bit 3

Number of Retries

Infinite

[2:0]

Delay times

R/W

Number of delay time units (see Register 0xFE3E).

IOUT_OC_WARN_LIMIT

The IOUT_OC_WARN_LIMIT command sets the current (in amperes) measured at the sense/output pin that causes an overcurrent

warning condition. The device notifies the host and sets the NONE_OF_THE_ABOVE bit in the STATUS_BYTE register, the IOUT bit

in the STATUS_WORD register, and the IOUT_OC_WARNING bit in the STATUS_IOUT register.

Table 48. Register 0x4A—IOUT_OC_WARN_LIMIT

Bits

Bit Name

R/W

Description

[15:11]

Exponent-N

R/W

Twos complement N-exponent used in linear data format (X = Y × 2N).

[10:0]

Mantissa-Y

R/W

Twos complement Y-mantissa used in linear data format (X = Y × 2N).

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