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MAX15303 PMBus Command Set User’s Guide
Page 2 of 52
Introduction
Maxim Integrated InTune™ digital power products utilize the PMBus™ command standard for configuration, control, and
telemetry.
This document lists and describes the PMBus commands implemented in the MAX15303 digital DC-DC converter. Standard
commands from the PMBus specification are not described in detail unless there are deviations from the PMBus
specification functionality. Maxim manufacturer-specific commands are fully described in this document.
References for this document are found on the PMBus and SMBus organization websites.
http://pmbus.org/specs.html
http://smbus.org/specs/
The commands in this document are presented in the following format:
<COMMAND_NAME>
Reference:
<”Standard” or “Maxim Specific”>
Lockable:
<yes/no>
Command Code:
<hex value>
Format:
<data format>
Data Bytes:
<byte count>
Units:
<unit of measure>
Transfer:
<SMBus transaction>
Factory Value:
<Maxim setting>
Description/Notes:
<Command definition if Maxim-specific, or notes on command functionality where it differs from the
PMBus specification.>
Table of Contents
Introduction ................................................................................................................................................................................. 2
On, Off, and Margin Testing-Related Commands ........................................................................................................................ 6
OPERATION .............................................................................................................................................................................. 6
ON_OFF_CONFIG ..................................................................................................................................................................... 6
VIN_ON .................................................................................................................................................................................... 7
VIN_OFF ................................................................................................................................................................................... 7
Output Voltage-Related Commands ............................................................................................................................................ 9
VOUT_MODE ........................................................................................................................................................................... 9
VOUT_COMMAND ................................................................................................................................................................... 9
VOUT_TRIM ............................................................................................................................................................................. 9
VOUT_CAL_OFFSET ................................................................................................................................................................ 10
VOUT_MAX ............................................................................................................................................................................ 10
VOUT_MARGIN_HIGH ........................................................................................................................................................... 11
VOUT_MARGIN_LOW ............................................................................................................................................................ 11
VOUT_TRANSITION_RATE ...................................................................................................................................................... 12
- MAX15303 PMBus Command Set 1
- User’s Guide 1
- Introduction 2
- Table of Contents 2
- OPERATION 6
- ON_OFF_CONFIG 6
- VIN_OFF 7
- VOUT_MODE 9
- VOUT_COMMAND 9
- VOUT_TRIM 10
- VOUT_CAL_OFFSET 10
- VOUT_MAX 10
- VOUT_MARGIN_HIGH 11
- VOUT_MARGIN_LOW 11
- VOUT_TRANSITION_RATE 12
- VOUT_DROOP 12
- FREQUENCY_SWITCH 14
- INTERLEAVE 14
- POWER_GOOD_ON 16
- POWER_GOOD_OFF 16
- TON_DELAY 17
- TON_RISE 17
- TOFF_DELAY 17
- TOFF_FALL 18
- Fault-Related Commands 19
- VOUT_OV_FAULT_RESPONSE 20
- VOUT_UV_FAULT_LIMIT 20
- VOUT_UV_FAULT_RESPONSE 20
- IOUT_OC_FAULT_LIMIT 21
- IOUT_OC_FAULT_RESPONSE 21
- OT_FAULT_LIMIT 22
- OT_FAULT_RESPONSE 23
- OT_WARN_LIMIT 23
- VIN_OV_FAULT_LIMIT 24
- VIN_OV_FAULT_RESPONSE 24
- VIN_UV_FAULT_LIMIT 25
- VIN_UV_FAULT_RESPONSE 25
- Unit Status Commands 27
- STATUS_INPUT 28
- STATUS_TEMPERATURE 28
- STATUS_CML 28
- Telemetry Commands 29
- READ_TEMPERATURE_1 30
- READ_TEMPERATURE_2 30
- READ_DUTY_CYCLE 30
- READ_FREQUENCY 30
- PMB_VALUES 31
- Calibration Commands 33
- EXT_TEMP_CAL 34
- CAPABILITY 35
- PMBUS_REVISION 35
- MFR_MODEL 36
- MFR_REVISION 36
- MFR_LOCATION 36
- MFR_DATE 36
- MFR_SERIAL 37
- IC_DEVICE_ID 37
- IC_DEVICE_REV 37
- Security Commands 38
- MANUF_LOCK 39
- MANUF_PASSWD 39
- USER_CONF 39
- USER_LOCK 40
- USER_PASSWD 40
- SECURITY_LEVEL 41
- Memory and Storage Commands 42
- RESTORE_DEFAULT_ALL 43
- STORE_USER_ALL 43
- RESTORE_USER_ALL 44
- RESTORE_MAXIM_ALL 45
- STRAP_DISABLE 45
- Control Loop Commands 47
- FEEDBACK_EFFORT 48
- LOOP_CONFIG 48
- COMP_MODEL 49
- DEADTIME_GCTRL 49
- Trademarks 51
- Revision History 52
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