Maxim-integrated MAX15301 PMBus Command Set Manuel d'utilisateur télécharger pdf (Page 11)

MAX15301 PMBus Command Set User’s Guide

Rev 1 Page 11 of 53

VOUT_TRIM

VOUT_CAL_OFFSET, and the result is sent to the control loop as the output voltage setpoint.

The value of VOUT_TRIM is not subtracted from READ_VOUT, so nonzero VOUT_TRIM values will

result in a difference between VOUT_COMMAND and READ_VOUT.

This command is intended to allow an end user of a PMBus device to tailor a specific supply to the

performance requirements of a specific load device, while retaining use of a “nominal” voltage

setpoint for all similar load devices.

VOUT_CAL_OFFSET

Reference:

Standard Command

Lockable:

Yes

Command Code:

0x23

Format:

Linear

Data Bytes:

Units:

Transfer:

Read/Write Word

Factory Value:

0x0000 (0V)

Description/Notes:

See Section 13.4 of the PMBus Specification Part II.

In the MAX15301, the value of VOUT_CAL_OFFSET is summed with the value of VOUT_COMMAND

and VOUT_TRIM, and the result is sent to the control loop as the output voltage setpoint.

The value of VOUT_CAL_OFFSET is subtracted from READ_VOUT, so VOUT_CAL_OFFSET values never

result in a difference between VOUT_COMMAND and READ_VOUT.

This command is intended to allow a PMBus device manufacturer or an end user to calibrate the

output voltage of a module (or other power-supply assembly) to match an external reference

instrument during their final-test process.

VOUT_MAX

Reference:

Standard Command

Lockable:

Yes

Command Code:

0x24

Format:

Unsigned integer mantissa

Data Bytes:

Units:

Transfer:

Read/Write Word

Factory Value:

0x0001 (see Description)

Description/Notes:

See Section 13.5 of the PMBus Specification Part II.

VOUT_MAX mantissa data sent to and from the MAX15301 must be divided by 4096 to determine the

actual voltage value, according to the fixed value of VOUT_MODE

The factory value of 0x0001 (0.244mV) will be ov

erridden during initialization to

VOUT_COMMAND x 1.10, unless a specific value has been written to the User Store.

VOUT_MARGIN_HIGH

Reference:

Standard Command

Lockable:

Yes

Command Code:

0x25

Format:

Unsigned integer mantissa

Data Bytes:

Units:

Transfer:

Read/Write Word

Factory Value:

0x0001 (see Description)

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 52 53

Commentaires sur ces manuels

Pas de commentaire

Maxim-integrated MAX15301 PMBus Command Set Manuel d'utilisateur Page 11

Commentaires sur ces manuels

Produits connexes et manuels pour Matériel Maxim-integrated MAX15301 PMBus Command Set