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LTC4449 Datasheet(PDF) 36 Page - Analog Devices

Part # LTC4449
Description  Quad-Phase, Synchronous Bidirectional Buck or Boost Controller
PDF  48 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC4449 Datasheet(HTML) 36 Page - Analog Devices

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LTC7872
36
Rev. 0
For more information www.analog.com
MFR_OC_FAULT
The MFR_OC_FAULT returns a one-byte summary of overcurrent fault condition. When the voltage difference between
SNSD+ and SNS– pins is larger than the overcurrent fault threshold programmed by the ILIM pin, the corresponding
register bit will become 1.
MFR_OC_FAULT Register Contents:
BIT
NAME
VALUE MEANING
7:6
Reserved
5
OC_FAULT_4
1
Channel 4 overcurrent fault has occurred.
4
OC_FAULT_3
1
Channel 3 overcurrent fault has occurred.
3
Reserved
2
Reserved
1
OC_FAULT_2
1
Channel 2 overcurrent fault has occurred.
0
OC_FAULT_1
1
Channel 1 overcurrent fault has occurred.
MFR_NOC_FAULT
The MFR_NOC_FAULT returns a one-byte summary of negative overcurrent fault condition. When the voltage difference
between SNSD+ and SNS– pins is less than the negative overcurrent fault threshold programmed by the ILIM pin, the
corresponding register bit will become 1.
MFR_NOC_FAULT Register Contents:
BIT
NAME
VALUE MEANING
7:6
Reserved
5
NOC_FAULT_4
1
Channel 4 negative overcurrent fault has occurred.
4
NOC_FAULT_3
1
Channel 3 negative overcurrent fault has occurred.
3
Reserved
2
Reserved
1
NOC_FAULT_2
1
Channel 2 negative overcurrent fault has occurred.
0
NOC_FAULT_1
1
Channel 1 negative overcurrent fault has occurred.
MFR_STATUS
The MFR_STATUS returns a one-byte summary of the operation status. The content of the MFR_STATUS register is
read only.
MFR_STATUS Register Contents:
BIT
NAME
VALUE MEANING
7:3
Reserved
2
SS_DONE
1
The soft-start is finished.
1
MAX_CURRENT
1
The maximum current programmed by the ILIM pin is reached.
0
PGOOD
1
The regulated VLOW/VHIGH is within ±10% regulation windows.
APPLICATIONS INFORMATION



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