WM8352 datasheet(302/336 Pages) WOLFSON

302 / 336 page

WM8352

Production Data

PD, February 2011, Rev 4.4

302

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

DC5_RMPL

DC-DC5 compensation ramp

{DC5_RMPH, DC5_RMPL}

00 = 20V < VOUT ≤ 30V

01 = 10V < VOUT ≤ 20V

10 = 5V < VOUT ≤ 10V

11 = VOUT ≤ 5V (will be chosen automatically if

DC5_FBSRC=11)

Reset by state machine. Default held in metal

mask.

1:0

DC5_FBSRC[1:0]

DC-DC5 voltage feedback selection

00 = voltage feedback (using external resistor

divider on pin FB5)

01 = current sink ISINKA used as feedback

10 = current sink ISINKB used as feedback

11 = voltage feedback (using internal resistor

divider on pin USB)

Reset by state machine. Default held in metal

mask.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R193 (C1h)

DCDC5

Timeouts

15:14

DC5_ERRACT[1:0]

Action to take on DC-DC5 fault (as well as

generating an interrupt):

00 = ignore

01 = shut down converter

10 = shut down system

11 = reserved (shut down system)

Reset by state machine. Default held in metal

mask.

13:10

DC5_ENSLOT[3:0]

0000

Time slot for DC-DC5 start-up

0000 = Disabled (do not start up)

0001 = Start-up in time slot 1

… (total 14 slots available)

1110 = Start-up in time slot 14

1111 = Start-up on entering ACTIVE

Reset by state machine. Default held in metal

mask.

9:6

DC5_SDSLOT[3:0]

0000

Time slot for DC-DC5 shutdown.

0000 = Shut down on entering OFF

0001 = Shutdown in time slot 1

…. (total 14 slots available)

1110 = Shutdown in time slot 14

1111 = Shut down on entering OFF

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