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LTM2987 Datasheet(PDF) 28 Page - Analog Devices

Part # LTM2987
Description  2-Channel 짹60V Power System Manager
PDF  114 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTM2987 Datasheet(HTML) 28 Page - Analog Devices

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LTC2971
28
Rev. 0
For more information www.analog.com
PMBus COMMAND SUMMARY
Summary Table
COMMAND NAME
CMD
CODE DESCRIPTION
TYPE
PAGED
DATA
FORMAT
(Note 1) UNITS EEPROM
DEFAULT
VALUE:
FLOAT HEX
(Note 2)
REF
PAGE
VOUT_UV_FAULT_LIMIT 0x44 Output undervoltage fault limit. Used for
Ton_max_fault and PWRGD pin de-
assertion.
R/W Word
Y
L16
V
Y
10.8 0x2B33
0.9 0x1CCD
55
VOUT_UV_FAULT_
RESPONSE
0x45 Action to be taken by the device when an
output undervoltage fault is detected.
R/W Byte
Y
Reg
Y
0x7F
66
IOUT_OC_WARN_LIMIT
0x4A Output overcurrent warning limit.
R/W Word
Y
L11
A
5.0
0xCA80
57
OT_FAULT_LIMIT
0x4F Overtemperature fault limit for the external
temperature sensor.
R/W Word
Y
L11
°C
Y
65.0
0xEA08
58
OT_FAULT_RESPONSE
0x50 Action to be taken by the device when an
overtemperature fault is detected on the
external temperature sensor.
R/W Byte
Y
Reg
Y
0xB8
67
OT_WARN_LIMIT
0x51 Overtemperature warning limit for the
external temperature sensor.
R/W Word
Y
L11
°C
Y
60.0
0xE3C0
58
UT_WARN_LIMIT
0x52 Undertemperature warning limit for the
external temperature sensor.
R/W Word
Y
L11
°C
Y
0
0x8000
58
UT_FAULT_LIMIT
0x53 Undertemperature fault limit for the external
temperature sensor.
R/W Word
Y
L11
°C
Y
–5.0
0xCD80
58
UT_FAULT_RESPONSE
0x54 Action to be taken by the device when an
undertemperature fault is detected on the
external temperature sensor.
R/W Byte
Y
Reg
Y
0xB8
67
VIN_OV_FAULT_LIMIT
0x55 Input overvoltage fault limit measured at
VIN_SNS pin.
R/W Word
N
L11
V
Y
15.0
0xD3C0
51
VIN_OV_FAULT_
RESPONSE
0x56 Action to be taken by the device when an
input overvoltage fault is detected.
R/W Byte
N
Reg
Y
0x80
67
VIN_OV_WARN_LIMIT
0x57 Input overvoltage warning limit measured at
VIN_SNS pin.
R/W Word
N
L11
V
Y
14.0
0xD380
51
VIN_UV_WARN_LIMIT
0x58 Input undervoltage warning limit measured
at VIN_SNS pin.
R/W Word
N
L11
V
Y
0
0x8000
51
VIN_UV_FAULT_LIMIT
0x59 Input undervoltage fault limit measured at
VIN_SNS pin.
R/W Word
N
L11
V
Y
0
0x8000
51
VIN_UV_FAULT_
RESPONSE
0x5A Action to be taken by the device when an
input undervoltage fault is detected.
R/W Byte
N
Reg
Y
0x00
67
POWER_GOOD_ON
0x5E Output voltage at or above which the
PWRGD pin should be asserted.
R/W Word
Y
L16
V
Y
11.52 0x2E14
0.96 0x1EB8
55
POWER_GOOD_OFF
0x5F Output voltage at or below which the
PWRGD pin should be de-asserted when
Mfr_config_all_pwrgd_off_uses_uv is clear.
R/W Word
Y
L16
V
Y
11.28 0x2D1F
0.94 0x1E14
55
TON_DELAY
0x60 Time from CONTROL pin and/or OPERATION
command = ON to VOUT_ENn pin = ON.
R/W Word
Y
L11
ms
Y
1.0
0xBA00
60
TON_RISE
0x61 Time from when the VOUT_ENn pin goes high
until the LTC2971 optionally soft-connects
its DAC and begins to servo the output
voltage to the desired value.
R/W Word
Y
L11
ms
Y
10.0
0xD280
60
TON_MAX_FAULT_LIMIT 0x62 Maximum time from VOUT_ENn = ON
assertion that an UV condition will be
tolerated before a TON_MAX_FAULT
condition results.
R/W Word
Y
L11
ms
Y
15.0
0xD3C0
60



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