ADM1178 Analog Devices, ADM1178 Datasheet - Page 21

• Manufacturer Part Number: ADM1178
• Description: Hot Swap Controller and Digital Power Monitor with ALERTB Output
• Manufacturer: Analog Devices

Specifications of ADM1178

• Operating Range(v): 3.15 to 16.5
• Uv & Ov Detection: ON pin (UV)
• Digital V & I Readback: I2C Interface,w/ 4 Addreses
• I Monitor Accuracy (+/-%): 2%
• Other Outputs: ALERTB
• Package: 10-Lead MSOP

Table 15. Status Byte Operations
Bit
0
1
2
3
4
5
Name
ADC_OC
ADC_ALERT
HS_OC
HS_ALERT
OFF_STATUS
OFF_ALERT
Function
An ADC-based overcurrent comparison is detected on the last three conversions.
An ADC-based overcurrent trip has occurred, causing the alert. Cleared by writing to Bit 4 of the ALERT_EN register.
The hot swap operation is off due to an analog overcurrent event. On parts that latch off, this is the same as the
HS_ALERT status bit (if EN_HS_ALERT = 1). On the retry parts, this indicates the current state: a 0 can indicate that the
data was read during a period when the device was retrying or that it has successfully hot swapped by retrying after at
least one overcurrent timeout.
The hot swap operation has failed since the last time this was reset. Cleared by writing to Bit 4 of the ALERT_EN register.
The state of the ON pin. Set to 1 if the input pin is deasserted. Can also be set to 1 by writing to the SWOFF bit of the
CONTROL register.
An alert has been caused by either the ON pin or the SWOFF bit. Cleared by writing to Bit 4 of the ALERT_EN register.
Rev. C | Page 21 of 24
ADM1178