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Data Sheet

ADP1050

OT_FAULT_RESPONSE

The OT_FAULT_RESPONSE command determines the fault response for the OT_FAULT flag.

Table 41. Register 0x50—OT_FAULT_RESPONSE

Bits

Bit Name/Function

R/W

Description

[7:6]

Response

R/W

00 = continues operation without interruption.

01 = continues operation for the Delay Time 1 specified by Bits[2:0] and the delay time unit

specified for that particular fault. If the fault condition is still present at the end of the delay time, the

unit responds as programmed in the retry setting (Bits[5:3]).

10 = shuts down (disables the output) and responds according to the retry setting in Bits[5:3].

11 = the output is disabled 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

000 = restart not attempted. The output remains disabled until the fault is cleared.

001 to 110 = attempts to restart the number of times set by these bits. If the device fails to restart

in the allowed number of retries, it disables the output and remains off until the fault is cleared.

The time between the start of each attempt to restart is set by the Delay Time 2 value in Bits[2:0],

together with the delay time unit specified for that particular fault.

111 = attempts to restart continuously, without limitation, until commanded off (by the CTRL pin or

the OPERATION command, or both), VDD is removed, or another fault condition causes the unit to

shut down.

[2:0]

Delay time

R/W

These bits set the delay time.

Bit 2

Bit 1

Bit 0

Delay Time 1 (sec)

Delay Time 2 (ms)

252

588

924

1260

1596

1932

2268

2604

POWER_GOOD_ON

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

status bit (POWER_GOOD) in the STATUS_WORD command is always reflective of VOUT with regard to the POWER_GOOD_ON and

POWER_GOOD_OFF limits.

Table 42. Register 0x5E—POWER_GOOD_ON

Bits

Bit Name/Function

R/W

Description

[15:0]

Mantissa

R/W

Sets the output voltage for the POWER_GOOD_ON command.

16-bit unsigned integer Y value for linear format X = Y × 2N.

N is defined by the VOUT_MODE command.

POWER_GOOD_OFF

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

status bit (POWER_GOOD) in the STATUS_WORD command is always reflective of VOUT with regard to the POWER_GOOD_ON and

POWER_GOOD_OFF limits.

Table 43. Register 0x5F—POWER_GOOD_OFF

Bits

Bit Name/Function

R/W

Description

[15:0]

Mantissa

R/W

Sets the output voltage for the POWER_GOOD_OFF command.

16-bit unsigned integer Y value for linear format X = Y × 2N.

N is defined by the VOUT_MODE command.

Rev. A | Page 61 of 92

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