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LTM4677 Datasheet(PDF) 34 Page - Analog Devices

Part # LTM4677
Description  Single Phase Step-Down DC/DC Controller with Digital Power System Management
PDF  116 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTM4677 Datasheet(HTML) 34 Page - Analog Devices

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LTC3883/LTC3883-1
34
Rev. F
For more information www.analog.com
PMBus COMMAND SUMMARY
COMMAND NAME
CMD
CODE DESCRIPTION
TYPE
DATA
FORMAT
UNITS
NVM
DEFAULT
VALUE
PAGE
VIN_ON
0x35 Input voltage at which the unit should start
power conversion.
R/W Word
L11
V
Y
6.5
0xCB40
71
VIN_OFF
0x36 Input voltage at which the unit should stop
power conversion.
R/W Word
L11
V
Y
6.0
0xCB00
71
IOUT_CAL_GAIN
0x38 The ratio of the voltage at the current sense pins
to the sensed current. For devices using a fixed
current sense resistor, it is the resistance value
in mΩ.
R/W Word
L11
mΩ
Y
1.8
0xBB9A
74
VOUT_OV_FAULT_LIMIT
0x40 Output overvoltage fault limit.
R/W Word
L16
V
Y
1.1
0x119A
72
VOUT_OV_FAULT_
RESPONSE
0x41 Action to be taken by the device when an output
overvoltage fault is detected.
R/W Byte
Reg
Y
0xB8
83
VOUT_OV_WARN_LIMIT
0x42 Output overvoltage warning limit.
R/W Word
L16
V
Y
1.075
0x1133
72
VOUT_UV_WARN_LIMIT
0x43 Output undervoltage warning limit.
R/W Word
L16
V
Y
0.925
0x0ECD
73
VOUT_UV_FAULT_LIMIT
0x44 Output undervoltage fault limit.
R/W Word
L16
V
Y
0.9
0x0E66
73
VOUT_UV_FAULT_
RESPONSE
0x45 Action to be taken by the device when an output
undervoltage fault is detected.
R/W Byte
Reg
Y
0xB8
84
IOUT_OC_FAULT_LIMIT
0x46 Output overcurrent fault limit.
R/W Word
L11
A
Y
29.75
0xDBB8
77
IOUT_OC_FAULT_
RESPONSE
0x47 Action to be taken by the device when an output
overcurrent fault is detected.
R/W Byte
Reg
Y
0x00
86
IOUT_OC_WARN_LIMIT
0x4A Output overcurrent warning limit.
R/W Word
L11
A
Y
20.0
0xDA80
77
OT_FAULT_LIMIT
0x4F External overtemperature fault limit.
R/W Word
L11
C
Y
100.0
0xEB20
79
OT_FAULT_RESPONSE
0x50 Action to be taken by the device when an external
overtemperature fault is detected,
R/W Byte
Reg
Y
0xB8
87
OT_WARN_LIMIT
0x51 External overtemperature warning limit.
R/W Word
L11
C
Y
85.0
0xEAA8
79
UT_FAULT_LIMIT
0x53 External undertemperature fault limit.
R/W Word
L11
C
Y
–40.0
0xE580
79
UT_FAULT_RESPONSE
0x54 Action to be taken by the device when an external
undertemperature fault is detected.
R/W Byte
Reg
Y
0xB8
88
VIN_OV_FAULT_LIMIT
0x55 Input supply overvoltage fault limit.
R/W Word
L11
V
Y
15.5
0xD3E0
70
VIN_OV_FAULT_
RESPONSE
0x56 Action to be taken by the device when an input
overvoltage fault is detected.
R/W Byte
Reg
Y
0x80
82
VIN_UV_WARN_LIMIT
0x58 Input supply undervoltage warning limit.
R/W Word
L11
V
Y
6.3
0xCB26
70
IIN_OC_WARN_LIMIT
0x5D Input supply overcurrent warning limit.
R/W Word
L11
A
Y
10.0
0xD280
78
POWER_GOOD_ON
0x5E Output voltage at or above which a power good
should be asserted.
R/W Word
L16
V
Y
0.93
0x0EE1
73
POWER_GOOD_OFF
0x5F Output voltage at or below which a power good
should be de-asserted.
R/W Word
L16
V
Y
0.92
0x0EB8
74
TON_DELAY
0x60 Time from RUN and/or Operation on to output
rail turn-on.
R/W Word
L11
ms
Y
0.0
0x8000
80



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