ISL78229 Datasheet, PDF (43/71 Pages) Intersil Corporation – 2-Phase Boost Controller with Drivers

ISL78229
PMBus™ Command Summary
Table 6 lists all the command sets available in ISL78229. Refer
to “PMBus™ Command Detail” starting on page 46 for details on
each specific PMBus™ command.
TABLE 6. PMBus™ COMMAND SUMMARY
COMMAND
CODE
COMMAND NAME
ACCESS
NUMBER
OF DATA DATA
BYTES FORMAT
DEFAULT
SETTING
DESCRIPTIONS
REFER
TO PAGE
01h OPERATION
Read/Write 1
BIT
Byte
80h
Enable/disable
page 46
03h CLEAR_FAULTS
10h WRITE_PROTECT
Send Byte
0
N/A
Read/Write 1
BIT
Byte
N/A
Clears any fault bits in the Fault_Status register that page 46
have been set
00h
Protections against accidental changes
page 47
19h CAPABILITY
Read Byte
1
BIT
B0h
Provides the way for a host system to determine page 47
some key capabilities of ISL78229 as PMBus™
device
21h VOUT_COMMAND
Read/Write 2
Word
16Lu
00C8h
Sets nominal reference voltage for V_OUT set-point, page 48
VREF_DAC = 1.6V as default
27h VOUT_TRANSITION_RATE Read/Write 2
Word
4Fh OT_NTC_FAULT_LIMIT Read/Write 2
Word
BIT
16Lu
0004h
0096h
Sets V_OUT transition rate during VOUT_COMMAND
commands to change V_OUT.
Sets the over-temperature fault limit,
NTC_PIN <300mV as default
page 49
page 50
51h OT_NTC_WARN_LIMIT Read/Write 2
Word
88h READ_VIN
Read Word
2
16Lu
16Lu
00E1h
N/A
Sets the over-temperature warning limit,
NTC_PIN <450mV as default
page 51
Reports input voltage measurement (VIN_PIN/48) page 52
89h READ_VOUT
Read Word
2
16Lu
N/A
Reports the FB pin voltage measurement which is page 53
proportional to output voltage
8Ch READ_IIN
Read Word
2
16Lu
N/A
Intersil defined register. Reports the IMON pin
page 54
voltage measurement which represents the total
two phases’ inductor average current which is the
boost input current.
8Dh READ_TEMPERATURE Read Word
2
16Lu
N/A
Reports the NTC pin voltage measurement which page 55
represents the temperature
98h PMBUS_REVISION
Read Byte
1
BIT
22h
Reports the PMBus™ revision to which the
page 56
ISL78229 is compliant. (PMBus™ Part I revision
1.2, Part II revision 1.2)
ADh IC_DEVICE_ID
Read Word
2
CUS
8229h Reports device identification information
page 56
AEh IC_DEVICE_REV
Read Word
2
CUS
0C01h Reports device revision information
page 57
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FN8656.3
February 12, 2016