Datasheet LTM4700 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Dual 50A or Single 100A µModule Regulator with Digital Power System Management |
| Pages / Page | 126 / 3 — TABLE OF CONTENTS. Applications Information-Derating Curves ..69. Package … |
| File Format / Size | PDF / 2.9 Mb |
| Document Language | English |
TABLE OF CONTENTS. Applications Information-Derating Curves ..69. Package Description ... 122. Typical Applications .. 124
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TABLE OF CONTENTS
Checking Transient Response ...59 Scratchpad ... 104 PolyPhase Configuration ..60 Identification ... 105 Connecting The USB to I2C/SMBus/PMBus Control er Fault Warning and Status .. 106 to the LTM4700 In System..60 Telemetry .. 112 LTpowerPlay: An Interactive GUI for Digital Power .61 NVM Memory Commands .. 116 PMBus Communication and Command Processing .. 61 Store/Restore ... 116 Thermal Considerations and Output Current Derating ...63 Fault Logging .. 117
Applications Information-Derating Curves ..69
Block Memory Write/Read.. 121 EMI Performance ..70
Package Description ... 122
Safety Considerations ...70
Typical Applications .. 124
Layout Checklist/Example ..70
Package Photograph ... 126 Typical Applications ..72 Related Parts .. 126 PMBus Command Details ...77
Addressing and Write Protect ...77 General Configuration Commands ..79 On/Off/Margin ..80 PWM Configuration ..82 Voltage ..85 Input Voltage and Limits ...85 Output Voltage and Limits ..86 Output Current and Limits ..89 Input Current and Limits ...91 Temperature ..92 External Temperature Calibration..92 Timing ..93 Timing—On Sequence/Ramp ...93 Timing—Off Sequence/Ramp ..94 Precondition for Restart ...95 Fault Response ...95 Fault Responses Al Faults ..95 Fault Responses Input Voltage ...96 Fault Responses Output Voltage ...96 Fault Responses Output Current ...99 Fault Responses IC Temperature .. 100 Fault Responses External Temperature ... 101 Fault Sharing ... 102 Fault Sharing Propagation .. 102 Fault Sharing Response .. 104 Rev 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Functional Diagram Test Circuits Operation PMBus Command Summary Applications Information Applications Information-Derating Curves Typical Applications PMBus Command Details Package Description Typical Applications Package Photograph Related Parts Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Functional Diagram Test Circuits Operation Power Module Introduction Power Module Overview, Major Features EEPROM with ECC Power-Up and Initialization Soft-Start Time-Based Sequencing Voltage-Based Sequencing Shutdown Light-Load Current Operation Switching Frequency and Phase PWM Loop Compensation Output Voltage Sensing INTVCC and Build-in 5V Bias Converter Output Current Sensing and Sub Milliohm DCR Current Sensing Input Current Sensing PolyPhase Load Sharing External/Internal Temperature Sense RCONFIG (Resistor Configuration) Pins Fault Detection and Handling Status Registers and ALERT Masking Mapping Faults to FAULT Pins Power Good Pins CRC Protection Serial Interface Communication Protection Device Addressing Responses to VOUT and IIN/IOUT Faults Output Overvoltage Fault Response Output Undervoltage Response Peak Output Overcurrent Fault Response Responses to Timing Faults Responses to VIN OV Faults Responses to OT/UT Faults Internal Overtemperature Fault Response External Overtemperature and Undertemperature Fault Response Responses to Input Overcurrent and Output Undercurrent Faults Responses to External Faults Fault Logging Bus Timeout Protection Similarity Between PMBus, SMBus and I2C 2-Wire Interface PMBus Serial Digital Interface Figures 7 to 24 PMBus Protocols PMBus Command Summary PMBus Commands Applications Information VIN to VOUT Step-Down Ratios Input Capacitors Output Capacitors Light Load Current Operation Switching Frequency and Phase Output Current Limit Programming Minimum On-Time Considerations Variable Delay Time, Soft-Start and Output Voltage Ramping Digital Servo Mode Soft Off (Sequenced Off) Undervoltage Lockout Fault Detection and Handling Open-Drain Pins Phase-Locked Loop and Frequency Synchronization Input Current Sense Amplifier Programmable Loop Compensation Checking Transient Response PolyPhase Configuration Connecting The USB to I2C/SMBus/PMBus Controller to the LTM4700 In System LTpowerPlay: An Interactive GUI for Digital Power PMBus Communication and Command Processing Thermal Considerations and Output Current Derating Applications Information-Derating Curves EMI Performance Safety Considerations Layout Checklist/Example Typical Applications PMBus Command Details Addressing and Write Protect General Configuration Commands On/Off/Margin PWM Configuration Voltage Input Voltage and Limits Output Voltage and Limits Output Current and Limits Input Current and Limits Temperature External Temperature Calibration Timing Timing—On Sequence/Ramp Timing—Off Sequence/Ramp Precondition for Restart Fault Response Fault Responses All Faults Fault Responses Input Voltage Fault Responses Output Voltage Fault Responses Output Current Fault Responses IC Temperature Fault Responses External Temperature Fault Sharing Fault Sharing Propagation Fault Sharing Response Scratchpad Identification Fault Warning and Status Telemetry NVM Memory Commands Store/Restore Fault Logging Block Memory Write/Read Package Description Typical Applications Package Photograph Related Parts
TABLE OF CONTENTS
Checking Transient Response ...59 Scratchpad ... 104 PolyPhase Configuration ..60 Identification ... 105 Connecting The USB to I2C/SMBus/PMBus Control er Fault Warning and Status .. 106 to the LTM4700 In System..60 Telemetry .. 112 LTpowerPlay: An Interactive GUI for Digital Power .61 NVM Memory Commands .. 116 PMBus Communication and Command Processing .. 61 Store/Restore ... 116 Thermal Considerations and Output Current Derating ...63 Fault Logging .. 117
Applications Information-Derating Curves ..69
Block Memory Write/Read.. 121 EMI Performance ..70
Package Description ... 122
Safety Considerations ...70
Typical Applications .. 124
Layout Checklist/Example ..70
Package Photograph ... 126 Typical Applications ..72 Related Parts .. 126 PMBus Command Details ...77
Addressing and Write Protect ...77 General Configuration Commands ..79 On/Off/Margin ..80 PWM Configuration ..82 Voltage ..85 Input Voltage and Limits ...85 Output Voltage and Limits ..86 Output Current and Limits ..89 Input Current and Limits ...91 Temperature ..92 External Temperature Calibration..92 Timing ..93 Timing—On Sequence/Ramp ...93 Timing—Off Sequence/Ramp ..94 Precondition for Restart ...95 Fault Response ...95 Fault Responses Al Faults ..95 Fault Responses Input Voltage ...96 Fault Responses Output Voltage ...96 Fault Responses Output Current ...99 Fault Responses IC Temperature .. 100 Fault Responses External Temperature ... 101 Fault Sharing ... 102 Fault Sharing Propagation .. 102 Fault Sharing Response .. 104 Rev 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Functional Diagram Test Circuits Operation PMBus Command Summary Applications Information Applications Information-Derating Curves Typical Applications PMBus Command Details Package Description Typical Applications Package Photograph Related Parts Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Functional Diagram Test Circuits Operation Power Module Introduction Power Module Overview, Major Features EEPROM with ECC Power-Up and Initialization Soft-Start Time-Based Sequencing Voltage-Based Sequencing Shutdown Light-Load Current Operation Switching Frequency and Phase PWM Loop Compensation Output Voltage Sensing INTVCC and Build-in 5V Bias Converter Output Current Sensing and Sub Milliohm DCR Current Sensing Input Current Sensing PolyPhase Load Sharing External/Internal Temperature Sense RCONFIG (Resistor Configuration) Pins Fault Detection and Handling Status Registers and ALERT Masking Mapping Faults to FAULT Pins Power Good Pins CRC Protection Serial Interface Communication Protection Device Addressing Responses to VOUT and IIN/IOUT Faults Output Overvoltage Fault Response Output Undervoltage Response Peak Output Overcurrent Fault Response Responses to Timing Faults Responses to VIN OV Faults Responses to OT/UT Faults Internal Overtemperature Fault Response External Overtemperature and Undertemperature Fault Response Responses to Input Overcurrent and Output Undercurrent Faults Responses to External Faults Fault Logging Bus Timeout Protection Similarity Between PMBus, SMBus and I2C 2-Wire Interface PMBus Serial Digital Interface Figures 7 to 24 PMBus Protocols PMBus Command Summary PMBus Commands Applications Information VIN to VOUT Step-Down Ratios Input Capacitors Output Capacitors Light Load Current Operation Switching Frequency and Phase Output Current Limit Programming Minimum On-Time Considerations Variable Delay Time, Soft-Start and Output Voltage Ramping Digital Servo Mode Soft Off (Sequenced Off) Undervoltage Lockout Fault Detection and Handling Open-Drain Pins Phase-Locked Loop and Frequency Synchronization Input Current Sense Amplifier Programmable Loop Compensation Checking Transient Response PolyPhase Configuration Connecting The USB to I2C/SMBus/PMBus Controller to the LTM4700 In System LTpowerPlay: An Interactive GUI for Digital Power PMBus Communication and Command Processing Thermal Considerations and Output Current Derating Applications Information-Derating Curves EMI Performance Safety Considerations Layout Checklist/Example Typical Applications PMBus Command Details Addressing and Write Protect General Configuration Commands On/Off/Margin PWM Configuration Voltage Input Voltage and Limits Output Voltage and Limits Output Current and Limits Input Current and Limits Temperature External Temperature Calibration Timing Timing—On Sequence/Ramp Timing—Off Sequence/Ramp Precondition for Restart Fault Response Fault Responses All Faults Fault Responses Input Voltage Fault Responses Output Voltage Fault Responses Output Current Fault Responses IC Temperature Fault Responses External Temperature Fault Sharing Fault Sharing Propagation Fault Sharing Response Scratchpad Identification Fault Warning and Status Telemetry NVM Memory Commands Store/Restore Fault Logging Block Memory Write/Read Package Description Typical Applications Package Photograph Related Parts
