User Manuals: Analog Devices Linear LTM 4700 Regulator

Manuals and User Guides for Analog Devices Linear LTM 4700 Regulator. We have 1 Analog Devices Linear LTM 4700 Regulator manual available for free PDF download: User Manual

Analog Devices Linear LTM 4700 User Manual (126 pages)

Dual 50A or Single 100A µModule Regulator with Digital Power System Management

Brand: Analog Devices | Category: Computer Hardware | Size: 4 MB

Features
1
Applications
1
Typical Application
1
Description
1
Table of Contents
2
Absolute Maximum Ratings
4
Order Information
4
Pin Configuration
4
Electrical Characteristics
5
Typical Performance Characteristics
12
Pin Functions
15
Simplified Block Diagram
19
Decoupling Requirements
19
Functional Diagram
20
Test Circuits
21
Operation
22
Power Module Introduction
22
Power Module Overview, Major Features
22
EEPROM with ECC
23
Power-Up and Initialization
24
Soft-Start
25
Time-Based Sequencing
25
Voltage-Based Sequencing
25
Shutdown
26
Light-Load Current Operation
26
Switching Frequency and Phase
27
PWM Loop Compensation
27
Output Voltage Sensing
27
INTV CC and Build-In 5V Bias Converter
27
Output Current Sensing and Sub Milliohm DCR Current Sensing
28
Input Current Sensing
28
Polyphase Load Sharing
28
External/Internal Temperature Sense
29
RCONFIG (Resistor Configuration) Pins
29
Fault Detection and Handling
32
Status Registers and ALERT Masking
33
Mapping Faults to FAULT Pins
35
Power Good Pins
35
CRC Protection
35
Serial Interface
35
Communication Protection
35
Device Addressing
35
Responses to V
36
Output Overvoltage Fault Response
36
OUT and IIN /IOUT Faults
36
Output Undervoltage Response
37
Peak Output Overcurrent Fault Response
37
Responses to Timing Faults
37
Responses to VIN OV Faults
37
Responses to OT/UT Faults
37
Internal Overtemperature Fault Response
37
External Overtemperature and Undertemperature Fault Response
38
Responses to Input Overcurrent and Output Undercurrent Faults
38
Responses to External Faults
38
Fault Logging
38
Bus Timeout Protection
38
Similarity between Pmbus, Smbus and I 2 C 2-Wire Interface
39
Pmbus Serial Digital Interface
39
Figures 7 to 24 Pmbus Protocols
41
Pmbus Command Summary
44
Pmbus Commands
44
Applications Information
50
VIN to VOUT Step-Down Ratios
50
Input Capacitors
50
Output Capacitors
50
Light Load Current Operation
50
Switching Frequency and Phase
51
Output Current Limit Programming
52
Minimum On-Time Considerations
53
Variable Delay Time, Soft-Start and Output Voltage Ramping
53
Digital Servo Mode
53
Soft off (Sequenced Off)
54
Undervoltage Lockout
55
Fault Detection and Handling
55
Open-Drain Pins
55
Phase-Locked Loop and Frequency Synchronization
56
Input Current Sense Amplifier
57
Programmable Loop Compensation
57
Checking Transient Response
58
Polyphase Configuration
59
Connecting the USB to I 2 C/Smbus/Pmbus Controller to the LTM4700 in System
59
Ltpowerplay: an Interactive GUI for Digital Power
60
Pmbus Communication and Command Processing
60
Thermal Considerations and Output Current Derating
62
Applications Information-Derating Curves
68
EMI Performance
69
Safety Considerations
69
Layout Checklist/Example
69
Typical Applications
71
Pmbus Command Details
76
Addressing and Write Protect
76
General Configuration Commands
78
On/Off/Margin
79
PWM Configuration
81
Voltage
84
Input Voltage and Limits
84
Output Voltage and Limits
85
Output Current and Limits
88
Input Current and Limits
90
Temperature
91
External Temperature Calibration
91
Timing
92
Timing-On Sequence/Ramp
92
Timing-Off Sequence/Ramp
93
Precondition for Restart
94
Fault Response
94
Fault Responses All Faults
94
Fault Responses Input Voltage
95
Fault Responses Output Voltage
95
Fault Responses Output Current
98
Fault Responses IC Temperature
99
Fault Responses External Temperature
100
Fault Sharing
101
Fault Sharing Propagation
101
Fault Sharing Response
103
Scratchpad
103
Identification
104
Fault Warning and Status
105
Telemetry
111
NVM Memory Commands
115
Store/Restore
115
Fault Logging
116
Block Memory Write/Read
120
Typical Applications
121
Package Description
122
Revision History
125
Package Photograph
126
Related Parts
126

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User Manuals: Analog Devices Linear LTM 4700 Regulator

Analog Devices Linear LTM 4700 User Manual (126 pages)

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