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Data Sheet

ADP1050

VOUT_OV_FAULT_LIMIT

The VOUT_OV_FAULT_LIMIT command sets the threshold value for overvoltage protection of the output voltage.

Table 36. Register 0x40—VOUT_OV_FAULT_LIMIT

Bits

Bit Name/Function

R/W

Description

[15:0]

Mantissa

R/W

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

N is defined by the VOUT_MODE command.

Note that the available OV protection limit value must be in the range of 75% to 150% of the

nominal output voltage.

VOUT_OV_FAULT_RESPONSE

The VOUT_OV_FAULT_RESPONSE command determines the fault response for the VOUT_OV_FAULT flag.

Table 37. Register 0x41—VOUT_OV_FAULT_RESPONSE

Bits

Bit Name/Function

R/W

Description

[7:6]

Response

R/W

00 = continues operation without interruption.

01 = continues operation for the debounce time (Delay Time 1) specified by Register 0xFE26[7:6]. If

the fault persists, retry the number of times specified by the retry setting of this command (Bits[5:3]).

10 = shuts down 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 ADP1050 fails to restart

in the allowed number of retries, the output is disabled 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], along

with the delay time unit specified for that particular fault.

111 = attempts to restart continuously, without limitation, until it is 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 between the start of each attempt to restart.

Bit 2

Bit 1

Bit 0

Delay Time 2 (ms)

252

588

924

1260

1596

1932

2268

2604

VOUT_UV_FAULT_LIMIT

The VOUT_UV_FAULT_LIMIT command sets the threshold value for undervoltage protection of the output voltage.

Table 38. Register 0x44—VOUT_UV_FAULT_LIMIT

Bits

Bit Name/Function

R/W

Bit Name/Function

[15:0]

Mantissa

R/W

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

N is defined by the VOUT_MODE command.

Rev. A | Page 59 of 92

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