ISL68147IRAZ datasheet(22/47 Pages) RENESAS

22 / 47 page

ISL68147

FN8880 Rev.2.00

Page 22 of 47

Jul 14, 2017

PMBus Command Summary

CODE

COMMAND NAME

DESCRIPTION

TYPE

DATA

FORMAT

DEFAULT

VALUE

DEFAULT SETTING

00h PAGE

Selects Output 0, 1, or both

R/W

Bit Field 00h

Page 0

01h OPERATION

Enable/disable, margin settings

R/W

Bit Field 08h

Off

02h ON_OFF_CONFIG

On/off configuration settings

R/W

Bit Field 16h

ENABLE pin control

03h CLEAR_FAULTS

Clears all fault bits in all registers and releases the

SALRT pin

Write

N/A

10h WRITE_PROTECT

Write protection to sets of commands

R/W

Bit Field 00h

No write protection

20h VOUT_MODE

Defines format for output voltage related commands

Read

Bit Field 40h

Direct format

21h VOUT_COMMAND

Sets the nominal VOUT target

R/W

Direct

0384h

900mV

22h VOUT_TRIM

Applies trim voltage to VOUT set-point

R/W

Direct

0000h

0mV

24h VOUT_MAX

Absolute maximum voltage setting

R/W

Direct

08FCh

2300mV

25h VOUT_MARGIN_HIGH

Sets VOUT target during margin high

R/W

Direct

0640h

1600mV

26h VOUT_MARGIN_LOW

Sets VOUT target during margin low

R/W

Direct

00FAh

250mV

27h VOUT_TRANSITION_RATE

Slew rate setting for VOUT changes

R/W

Direct

0064h

10mV/µs

28h VOUT_DROOP

Sets the load line (V/I slope) resistance for the output R/W

Direct

0000h

0µV/A

2Bh VOUT_MIN

Absolute minimum target voltage setting

R/W

Direct

0000h

0mV

40h VOUT_OV_FAULT_LIMIT

Sets the VOUT overvoltage fault threshold

R/W

Direct

076Ch

1900mV

44h VOUT_UV_FAULT_LIMIT

Sets the VOUT undervoltage fault threshold

R/W

Direct

0000h

0mV

4Fh OT_FAULT_LIMIT

Sets the over-temperature fault threshold

R/W

Direct

007Dh

+125°C

51h OT_WARN_LIMIT

Sets the over-temperature warn threshold

R/W

Direct

07D0h

+2000°C

55h VIN_OV_FAULT_LIMIT

Sets the VIN overvoltage fault threshold

R/W

Direct

36B0h

14,000mV

59h VIN_UV_FAULT_LIMIT

Sets the VIN undervoltage fault threshold

R/W

Direct

1F40h

8,000mV

5Bh IIN_OC_FAULT_LIMIT

Sets the IIN overcurrent fault threshold

R/W

Direct

0032h

50A

60h TON_DELAY

Sets the delay time from enable to VOUT rise

R/W

Direct

0014h

200µs

61h TON_RISE

Turn-on rise time

R/W

Direct

01F4h

500µs

64h TOFF_DELAY

Turn-off delay time

R/W

Direct

0000h

0µs

65h TOFF_FALL

Turn-off fall time

R/W

Direct

01F4h

500µs

78h STATUS_BYTE

First byte of STATUS_WORD

Read

Bit Field N/A

N/A

79h STATUS_WORD

Summary of critical faults

Read

Bit Field N/A

N/A

7Ah STATUS_VOUT

Reports VOUT faults

Read

Bit Field N/A

N/A

7Bh STATUS_IOUT

Reports IOUT faults

Read

Bit Field N/A

N/A

7Ch STATUS_INPUT

Reports input faults

Read

Bit Field N/A

N/A

7Dh STATUS_TEMPERATURE

Reports temperature warnings/faults

Read

Bit Field N/A

N/A

7Eh STATUS_CML

Reports communication, memory, logic errors

Read

Bit Field N/A

N/A

80h STATUS_MFR_SPECIFIC

Reports specific events

Read

Bit Field N/A

N/A

88h READ_VIN

Reports input voltage measurement

Read

Direct

N/A

89h READ_IIN

Reports input current measurement

Read

Direct

N/A

8Bh READ_VOUT

Reports output voltage measurement

Read

Direct

N/A

8Ch READ_IOUT

Reports output current measurement

Read

Direct

N/A

8Dh READ_TEMPERATURE_1

Reports power stage temperature measurement

Read

Direct

N/A

ISL68147IRAZ Datasheet(PDF) 22 Page - Renesas Technology Corp

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