ADP1055ACPZ-R7 datasheet(74/140 Pages) AD

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ADP1055

Data Sheet

Rev. A | Page 74 of 140

POWER_GOOD_ON

The POWER_GOOD_ON command sets the output voltage (in volts) at which the POWER_GOOD signal is asserted.

Table 60. Register 0x5E—POWER_GOOD_ON

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).

POWER_GOOD_OFF

The POWER_GOOD_OFF command sets the output voltage (in volts) at which the POWER_GOOD signal is deasserted.

Table 61. Register 0x5F—POWER_GOOD_OFF

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).

TON_DELAY

The TON_DELAY command sets the turn-on delay time in milliseconds (ms) from start (ON_OFF_CONFIG) until VOUT starts to rise.

The range is 0 ms to 1023 ms, in steps of 1 ms. The calculated value is rounded down.

Table 62. Register 0x60—TON_DELAY

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).

TON_RISE

The TON_RISE command sets the rise time (in ms) from when VOUT starts to rise until the voltage enters the regulation band.

Table 63. Register 0x61—TON_RISE

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).

TON_MAX_FAULT_LIMIT

The TON_MAX_FAULT_LIMIT command sets the upper time threshold (in ms) from power-up to the VOUT_UV_FAULT limit.

Table 64. Register 0x62—TON_MAX_FAULT_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).

TON_MAX_FAULT_RESPONSE

The TON_MAX_FAULT_RESPONSE command instructs the device on the actions to take due to a TON_MAX fault condition. 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

Table 65. Register 0x63—TON_MAX_FAULT_RESPONSE

Bits

Bit Name

R/W

Description

[7:6]

Response

R/W

Determines the device response to a TON_MAX 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.

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