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ADM1075-2ACPZ Scheda tecnica(PDF) 2 Page - Analog Devices

Il numero della parte ADM1075-2ACPZ
Spiegazioni elettronici  ??8 V Hot Swap Controller and Digital
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
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ADM1075-2ACPZ Scheda tecnica(HTML) 2 Page - Analog Devices

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ADM1075
Data Sheet
Rev. A | Page 2 of 52
TABLE OF CONTENTS
Features .............................................................................................. 1
 
Applications....................................................................................... 1
 
Product Highlights ........................................................................... 1
 
Functional Block Diagram .............................................................. 1
 
Revision History ............................................................................... 3
 
General Description ......................................................................... 4
 
Specifications..................................................................................... 5
 
Serial Bus Timing ......................................................................... 9
 
Absolute Maximum Ratings.......................................................... 10
 
Thermal Resistance .................................................................... 10
 
ESD Caution................................................................................ 10
 
Pin Configuration and Function Description ............................ 11
 
Typical Performance Characteristic............................................. 13
 
Theory of Operation ...................................................................... 20
 
Powering the ADM1075............................................................ 20
 
Current Sense Inputs.................................................................. 21
 
Current Limit Reference............................................................ 21
 
Setting the Current Limit (ISET) ............................................. 22
 
Soft Start ...................................................................................... 22
 
Constant Power Foldback (PLIM) ........................................... 22
 
TIMER ......................................................................................... 23
 
Hot Swap Fault Retry ................................................................. 24
 
Fast Response to Severe Overcurrent ...................................... 24
 
UV and OV ................................................................................. 24
 
PWRGD....................................................................................... 25
 
DRAIN ......................................................................................... 25
 
SPLYGD ....................................................................................... 25
 
LATCH......................................................................................... 25
 
SHDN........................................................................................... 25
 
RESTART..................................................................................... 25
 
FET Health .................................................................................. 26
 
Power Monitor ............................................................................ 26
 
Isolation ....................................................................................... 26
 
PMBus Interface ............................................................................. 28
 
Device Addressing...................................................................... 28
 
SMBus Protocol Usage............................................................... 28
 
Packet Error Checking............................................................... 28
 
SMBus Message Formats ........................................................... 29
 
Group Commands...................................................................... 30
 
Hot Swap Control Commands ................................................. 31
 
ADM1075 Information Commands........................................ 31
 
Status Commands ...................................................................... 31
 
GPO and Alert Pin Setup Commands .................................... 32
 
Power Monitor Commands ...................................................... 32
 
Warning Limit Setup Commands ............................................ 33
 
PMBus Direct Format Conversion .......................................... 34
 
Voltage and Current Conversion Using LSB Values.............. 35
 
ADM1075 Alert Pin Behavior ...................................................... 36
 
Faults and Warnings .................................................................. 36
 
Generating an Alert ................................................................... 36
 
Handling/Clearing an Alert ...................................................... 36
 
SMBus Alert Response Address ............................................... 37
 
Example Use of SMBus Alert Response Address ................... 37
 
Digital Comparator Mode......................................................... 37
 
PMBus Command Reference........................................................ 38
 
Register Details ............................................................................... 39
 
Operation Command Register ................................................. 39
 
Clear Faults Register .................................................................. 39
 
PMBus Capability Register ....................................................... 39
 
IOUT OC Warn Limit Register................................................ 39
 
VIN OV Warn Limit Register................................................... 39
 
VIN UV Warn Limit Register................................................... 39
 
PIN OP Warn Limit Register .................................................... 40
 
Status Byte Register .................................................................... 40
 
Status Word Register.................................................................. 40
 
IOUT Status Register ................................................................. 41
 
Input Status Register .................................................................. 41
 
Manufacturing Specific Status Register................................... 42
 
Read EIN Register ...................................................................... 43
 
Read VIN Register...................................................................... 43
 
Read IOUT Register................................................................... 43
 
Read PIN Register ...................................................................... 43
 
PMBus Revision Register .......................................................... 43
 
Manufacturing ID Register ....................................................... 44
 
Manufacturing Model Register ................................................ 44
 
Manufacturing Revision Register............................................. 44
 
Peak IOUT Register ................................................................... 44
 
Peak VIN Register ...................................................................... 45
 
Peak VAUX Register .................................................................. 45
 
Power Monitor Control Register.............................................. 45
 


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