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ADM1075 датащи(PDF) 2 Page - Analog Devices |
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ADM1075 датащи(HTML) 2 Page - Analog Devices |
2 / 52 page 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 |
Аналогичный номер детали - ADM1075 |
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Аналогичное описание - ADM1075 |
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