ADP1055ACPZ-R7 datasheet(66/140 Pages) AD

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ADP1055

Data Sheet

Rev. A | Page 66 of 140

IOUT_CAL_OFFSET

The IOUT_CAL_OFFSET command is used to null any offsets in the output current sensing circuit (in amperes).

Table 37. Register 0x39—IOUT_CAL_OFFSET

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).

VOUT_OV_FAULT_LIMIT

The VOUT_OV_FAULT_LIMIT command sets the upper voltage threshold (in volts) measured at the sense/output pin that causes an

overvoltage fault condition. The exponent N is set using VOUT_MODE[4:0].

Table 38. Register 0x40—VOUT_OV_FAULT_LIMIT

Bits

Bit Name

R/W

Description

[15:0]

Mantissa-Y

R/W

Unsigned Y-mantissa used in output voltage related commands in linear data format (V = Y × 2N).

VOUT_OV_FAULT_RESPONSE

The VOUT_OV_FAULT_RESPONSE command instructs the device on the actions to take due to an output overvoltage fault. The device

notifies the host and sets the VOUT_OV_FAULT bit in the STATUS_BYTE register, the VOUT bit in the STATUS_WORD register, and

the VOUT_OV_FAULT bit in the STATUS_VOUT register.

Table 39. Register 0x41—VOUT_OV_FAULT_RESPONSE

Bits

Bit Name

R/W

Description

[7:6]

Response

R/W

Determines the device response to an overvoltage 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 time

R/W

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

VOUT_OV_WARN_LIMIT

The VOUT_OV_WARN_LIMIT command sets the upper voltage threshold (in volts) measured at the sense/output pin that causes an

overvoltage warning condition. The exponent N is set using VOUT_MODE[4:0]. The device notifies the host and sets the NONE_OF_THE_

ABOVE bit in the STATUS_BYTE register, the VOUT bit in the STATUS_WORD register, and the VOUT_OV_WARNING bit in the

STATUS_VOUT register.

Table 40. Register 0x42—VOUT_OV_WARN_LIMIT

Bits

Bit Name

R/W

Description

[15:0]

Mantissa-Y

R/W

Unsigned Y-mantissa used in output voltage related commands in linear data format (V = Y × 2N).

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