Datasheet

DS_1x66B_001 73M1866B/73M1966B Data Sheet

Rev. 1.6 77

Function

Mnemonic

Location

Type Description

Over-Voltage Detection Control and Status

ENOVD 0x15[1] WO Enable Over-Voltage Detector On Line-Side Device

0 = Over Voltage Detector not enabled.

1 = Over Voltage Detector enabled (not latched). Over voltage detector

is enabled if ENOVD, ENFEL and ENNOM all equal 1.

OVDET 0x1E[5] R Over-Voltage Detector On Line-Side Device

0 = Over Voltage condition is not detected at RGP/RGN inputs.

1 = Over Voltage Condition is detected at RGP/RGN inputs.

OVDTH 0x13[2] WO Over-Voltage Threshold Setting

0 = Over Voltage Threshold is 0.6 Vpk at the chip or 60 Vp on the line.

1 = Over Voltage Threshold is 0.7 Vpk at the chip or 70 Vp on the line.

Over-Load Detection Control and Status

ENOLD 0x15[7] WO Enable Over-Load Detector

0 = Over Load Detector is not enabled.

1 = Over Load Detector is enabled (not latched).

OLDET 0x1E[3] R Over-Load Detector

0 = Over-Load condition is not detected.

1 = Over-Load condition detected. Asserted when the line voltage

exceeds 3.5 Vpk typically. OLDET is performed partially in analog

domain and partially in digital domain. OLDET is asserted when the

delta from aux A/D between two consecutive DCI samples is greater

than 76.

Over-Current Detection Control and Status

ENOID 0x15[0] WO Enable Over-Current Detector On Line-Side Device

0 = Over-Current Detector is not enabled. (Default)

1 = Over-Current Detector is enabled.

OIDET 0x1E[4] R Over-Current (I) Detector On Line-Side Device

0 = Over-Current (I) condition is not detected.

1 = Over-Current (I) condition is detected at the DCS pin when Loop

Current is > 125 mA if ILM=0, or > 55 mA if ILM=1.