LTM2987 datasheet(72/114 Pages) AD

72 / 114 page

LTC2971

Rev. 0

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STATUS_VOUT

The STATUS_VOUT command returns the summary of the output voltage faults or warnings which have occurred, as

shown in the following table:

STATUS_VOUT Data Contents

BIT(S) SYMBOL

OPERATION

b[7] Status_vout_ov_fault

Overvoltage fault.

b[6] Status_vout_ov_warn

Overvoltage warning.

b[5] Status_vout_uv_warn

Undervoltage warning.

b[4] Status_vout_uv_fault

Undervoltage fault.

b[3] Status_vout_max_warn

VOUT_MAX warning. An attempt has been made to set the output voltage to a value higher than allowed by the

VOUT_MAX command.

b[2] Status_vout_ton_max_fault TON_MAX_FAULT sequencing fault.

b[1] Status_vout_toff_max_warn Not supported. Always returns 0.

b[0] Status_vout_tracking_error Not supported. Always returns 0.

STATUS_IOUT

The STATUS_IOUT command returns the summary of the output current faults or warnings which have occurred, as

shown in the following table:

STATUS_IOUT Data Contents

BIT(S) SYMBOL

OPERATION

b[7] Status_iout_oc_fault

Not supported. Always returns 0.

b[6] Status_iout_oc_uv_fault

Not supported. Always returns 0.

b[5] Status_iout_oc_warn

Overcurrent warning.

b[4] Status_iout_uc_fault

Not supported. Always returns 0.

b[3] Status_curr_share_fault

Not supported. Always returns 0.

b[2] Status_pout_power_limiting

Not supported. Always returns 0.

b[1] Status_pout_overpower_fault

Not supported. Always returns 0.

b[0] Status_pout_overpower_warn Not supported. Always returns 0.

STATUS_INPUT

The STATUS_INPUT command returns the summary of the VIN faults or warnings which have occurred, as shown in

the following table:

STATUS_INPUT Data Contents

BIT(S) SYMBOL

OPERATION

b[7] Status_input_ov_fault VIN overvoltage fault.

b[6] Status_input_ov_warn VIN overvoltage warning.

b[5] Status_input_uv_warn VIN undervoltage warning.

b[4] Status_input_uv_fault VIN undervoltage fault.

b[3] Status_input_off

Unit is off for insufficient input voltage.

b[2] IIN overcurrent fault

Not supported. Always returns 0.

b[1] IIN overcurrent warn

Not supported. Always returns 0.

b[0] PIN overpower warn

Not supported. Always returns 0.

PMBus COMMAND DESCRIPTION

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