ISL68229IRAZ datasheet(57/107 Pages) RENESAS

57 / 107 page

ISL68229, ISL68239

10. PMBus Command Detail

R16DS0006EU0101 Rev.1.01

Page 57 of 106

Jul 21, 2022

10.28 VOUT_UV_FAULT_RESPONSE (45h)

Definition: Configures the output undervoltage fault response. This fault is masked during ramp or when

disabled.

Access: Paged

Data Length in Bytes: 1

Data Format: Bit Field

Type: R/W

Default Value: 84h (latch off)

Command

VOUT_UV_FAULT_RESPONSE (45h)

Format

Bit Field

Bit Position

Access

R/W

Function

See Following Table

Default Value

100

Bit

Field Name

Value

Description

7:6

Response Behavior

During a fault, the

device:

• Pulls PMALRT low

• Sets the related fault

bit in the status

registers.

Continue without interruption.

Not supported

Disable and retry according to the setting in Bits [5:3].

Not supported

5:3

Retry Setting

000

No retry. The output remains disabled until the rail is restarted.

001-110

Not supported

111

Attempts to restart continuously, without limitation, until it is

commanded OFF (by the CONTROL pin or OPERATION

command), bias power is removed, or another fault condition

causes the unit to shut down. The time between retries is set

by Bits [2:0].

2:0

Delay Time before

Retry

000

Delay 0ms (not recommended)

001-110

Delay 25ms per LSB

111

Delay 175ms

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