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LTM4677 Datasheet(PDF) 30 Page - Analog Devices

Part # LTM4677
Description  Dual Loop 8-Phase Step-Down DC/DC Controller with Digital Power System Management
PDF  110 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTM4677 Datasheet(HTML) 30 Page - Analog Devices

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LTC3888-1
30
Rev. 0
For more information www.analog.com
OPERATION
Figure 2. LTC3888-1 Status Register Summary
(PAGED)
MFR_PADS_LTC3888-1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Channel 1 DrMOS Ready
Channel 0 DrMOS Ready
(reads 0)
(reads 0)
Invalid READ_TEMPERATURE_1
SYNC Output Disabled Externally
Channel 1 is POWER_GOOD
Channel 0 is POWER_GOOD
LTC3888-1 Forcing RUN1 Low
LTC3888-1 Forcing RUN0 Low
RUN1 Pin State
RUN0 Pin State
LTC3888-1 Forcing FAULT1 Low
LTC3888-1 Forcing FAULT0 Low
FAULT1 Pin State
FAULT0 Pin State
STATUS_MFR_SPECIFIC
7
6
5
4
3
2
1
0
(PAGED)
388812 F02
STATUS_INPUT
7
6
5
4
3
2
1
0
STATUS_WORD
STATUS_BYTE
7
6
5
4
3
2
1
0
(PAGED)
MFR_COMMON
7
6
5
4
3
2
1
0
Chip Not Driving ALERT Low
Chip Not Busy
Internal Calculations Not Pending
Output Not In Transition
EEPROM Initialized
(reads 0)
SHARE_CLK_LOW
(reads 0)
STATUS_TEMPERATURE
7
6
5
4
3
2
1
0
STATUS_CML
7
6
5
4
3
2
1
0
STATUS_VOUT
7
6
5
4
3
2
1
0
(PAGED)
STATUS_IOUT
7
6
5
4
3
2
1
0
(PAGED)
1Set by VOUT_OV, DrMOS (power stage) fault or DrMOS UVLO during RUN
2Set only by detected power stage fault
MASKABLE
DESCRIPTION
General Fault or Warning Event
General Non-Maskable Event
Dynamic
Status Derived from Other Bits
Yes
No
No
No
GENERATES ALERT
Yes
Yes
No
Not Directly
BIT CLEARABLE
Yes
Yes
No
No
VOUT_OV Fault1
VOUT_OV Warning
VOUT_UV Warning
VOUT_UV Fault
VOUT_MAX Warning
TON_MAX Fault
TOFF_MAX Warning
(reads 0)
IOUT_OC Fault
(reads 0)
IOUT_OC Warning
(reads 0)
Current Share Fault2
(reads 0)
(reads 0)
OT Fault
OT Warning
(reads 0)
(reads 0)
(reads 0)
(reads 0)
(reads 0)
(reads 0)
Invalid/Unsupported Command
Invalid/Unsupported Data
Packet Error Check Failed
Memory Fault Detected
Processor Fault Detected
(reads 0)
Other Communication Fault
Other Memory or Logic Fault
Internal Temperature Fault
Internal Temperature Warning
EEPROM CRC Error
Internal PLL Unlocked
Fault Log Present
(reads 0)
VOUT Short Cycled
FAULT Low
VIN_OV Fault
(reads 0)
VIN_UV Warning
(reads 0)
Unit Off for Insuffcient VIN
(reads 0)
(reads 0)
(reads 0)
15
14
13
12
11
10
9
8
VOUT
IOUT
INPUT
MFR_SPECIFIC
POWER_GOOD#
(reads 0)
(reads 0)
(reads 0)
BUSY
OFF
VOUT_OV
IOUT_OC
(reads 0)
TEMPERATURE
CML
NONE OF THE ABOVE
MFR_INFO
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
EEPROM ECC Status
Reserved
Reserved
Reserved
Reserved
Reserved



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