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LT3074AVPBF 数据表(PDF) 44 Page - Analog Devices

部件名 LT3074AVPBF
功能描述  5.5V, 3A Ultralow Noise, High PSRR, 45mV Dropout Linear Regulator with PMBus
PDF  62 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

LT3074AVPBF 数据表(HTML) 44 Page - Analog Devices

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Data Sheet
LT3074
analog.com
Rev 0.
44 of 62
Figure 91. Summary of Faults Reported in the LT3074
Once the LT3074 pulls down the ALERT pin, the device continues to hold the pin low until one of the following occurs:
The LT3074 is disabled and enabled again using the EN/UV pin.
A CLEAR_FAULTS or MFR_RESET command is received (and the fault that caused the LT3074 to assert the
ALERT
pin low is not persistent).
All status bits are cleared by writing a 1 to each bit (and the fault that caused the LT3074 to assert the ALERT
pin low is not persistent).
The LT3074 successfully transmits its address during a PMBus ARA.
The BIAS power is removed from the device.
THE LT3074 does not support the masking of faults and warnings. If fault reporting for certain parameters is not
needed, make sure to set the limits for the respective parameters beyond the normal operating range in the
application. Regardless of the limits set, care must always be exercised to ensure the maximum operating ratings for
STATUS_WORD
15
VOUT
14
IOUT
13
INPUT
12
MFR_SPECIFIC
11
10
9
8
STATUS_BYTE
7
6
5
4
IOUT_OC
3
READS 0
READS 0
READS 0
READS 0
READS 0
OFF
READS 0
READS 0
2
TEMPERATURE
1
CML
0
NONE OF THE ABOVE
STATUS_VOUT
7
6
VOUT OV WARNING
5
VOUT UV WARNING
4
VOUT UV FAULT
3
2
1
0
READS 0
READS 0
READS 0
READS 0
READS 0
STATUS_IOUT
7
IOUT_OC FAULT
6
5
4
3
2
1
0
READS 0
READS 0
READS 0
READS 0
READS 0
READS 0
READS 0
STATUS_INPUT
7
6
VIN OV WARNING
5
VIN UV WARNING
4
3
2
1
0
STATUS_MFR_SPECIFIC
7
6
BIAS OV WARNING
5
BIAS UV WARNING
4
MIN IOUT WARNING
3
FAST START EVENT
2
1
0
READS 0
READS 0
READS 0
READS 0
READS 0
READS 0
READS 0
READS 0
READS 0
READS 0
STATUS_CML
7
INVALID/UNSUPPORTED COMMAND
6
INVALID/UNSUPPORTED DATA
5
PACKET ERROR CHECK FAILED
4
MEMORY FAULT DETECTED
3
2
1
OTHER COMMUNICATION FAULT
0
READS 0
READS 0
READS 0
STATUS_TEMPERATURE
7
OT FAULT
6
OT WARNING
5
4
3
2
1
0
READS 0
READS 0
READS 0
READS 0
READS 0
READS 0
DESCRIPTION
GENERATES ALERT
BIT CLEARABLE
GENERAL FAULT OR WARNING EVENT
YES
YES
STATUS DERIVED FROM OTHER BIT(S)
INDIRECTLY
NO



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