Maxim-integrated MAX15303 PMBus Command Set Bedienungsanleitung Seite 16
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MAX15303 PMBus Command Set User’s Guide
Page 16 of 52
Output Voltage Sequencing Commands
POWER_GOOD_ON
Reference:
Standard Command
Lockable:
Yes
Command Code:
0x5E
Format:
Unsigned integer mantissa
Data Bytes:
2
Units:
V
Transfer:
Read/Write Word
Factory Value:
0x1135 (1.080V)
Description/Notes:
See Section 15.32.1 of the PMBus Specification Part II.
POWER_GOOD_ON mantissa data sent to and from the MAX15303 must be divided by 4096 to
determine the actual voltage value, according to the fixed value of VOUT_MODE
.
In the MAX15303, there are seven possible output voltage ranges based on seven corresponding
internal feedback divider taps. The MAX15303 hardware has 8-bit resolution for the power-good
threshold within each of these seven ranges.
The desired value of POWER_GOOD_ON is retained in memory, regardless of limitations imposed by
the feedback divider range and the 8-bit fault limit resolution, but the read-back value is based on
actual hardware register settings.
The factory value of 0x1135 (1.080V) will be overridden during initialization to
VOUT_COMMAND x 0.95, unless a specific value has been written to the User Store.
POWER_GOOD_OFF
Reference:
Standard Command
Lockable:
Yes
Command Code:
0x5F
Format:
Unsigned integer mantissa
Data Bytes:
2
Units:
V
Transfer:
Read/Write Word
Factory Value:
0x0F99 (0.980V)
Description/Notes:
See Section 15.32.2 of the PMBus Specification Part II.
POWER_GOOD_OFF mantissa data sent to and from the MAX15303 must be divided by 4096 to
determine the actual voltage value, according to the fixed value of VOUT_MODE
.
In the MAX15303, there are seven possible output voltage ranges based on seven corresponding
internal feedback divider taps. The MAX15303 hardware has 8-bit resolution for the power-good
threshold within each of these seven ranges.
The desired value of POWER_GOOD_OFF is retained in memory, regardless of limitations imposed by
the feedback divider range and the 8-bit fault limit resolution, but the read-back value is based on
actual hardware register settings.
The factory value of 0x0F99 (0.980V) will be overridden during initialization to
VOUT_COMMAND x 0.93, unless a specific value has been written to the User Store.
- 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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