ADP1052ACPZ-R7 datasheet(67/113 Pages) AD

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Data Sheet

ADP1052

Rev. B | Page 67 of 113

IOUT_CAL_GAIN

The IOUT_CAL_GAIN command sets the ratio of the voltage

at the current sense element to the sensed current. For devices

using a fixed current sense resistor, it is typically the same value

as the conductance of the resistor. The units are milliohms (mΩ).

Typically, this command is used with the READ_IOUT command.

RSENSE

READ_IOUT

IOUT_CAL_GAIN

IOUT

–

ADC

Figure 64. Conceptual View of the Output Current Related Commands

Table 38. Register 0x38—IOUT_CAL_GAIN

Bits

Bit Name/Function

R/W

Description

[15:11]

Exponent

R/W

5-bit, twos complement, N value for linear format, X = Y × 2N, where N is in the range of

−12 to 0 decimal.

[10:0]

Mantissa

R/W

11-bit, twos complement, Y value for linear format, X = Y × 2N.

VOUT_OV_FAULT_LIMIT

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

Table 39. 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, where 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

Table 40. 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 ADP1052 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],

together 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,

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

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