WM8352 datasheet(296/336 Pages) WOLFSON

296 / 336 page

WM8352

Production Data

PD, February 2011, Rev 4.4

296

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R183 (B7h)

DCDC2

Control

DC2_MODE

DC-DC2 Converter Mode

0 = Boost mode

1 = Switch mode

Reset by state machine.

DC2_HIB_MODE

DC-DC2 Hibernate behaviour:

0 = Continue as in Active state

1 = Disable converter output

Reset by state machine.

9:8

DC2_HIB_TRIG[1:0]

DC-DC2 Hibernate signal select

00 = HIBERNATE register bit

01 = L_PWR1

10 = L_PWR2

11 = L_PWR3

Note that Hibernate is also selected when a GPIO

Hibernate input is asserted.

Reset by state machine.

DC2_ILIM

DC-DC2 peak current limit select

0 = Higher peak current

1 = Lower peak current

Reset by state machine. Default held in metal

mask.

DC2_RMPH

DC-DC2 compensation ramp

{DC2_RMPH, DC2_RMPL}

00 = 20V < VOUT ≤ 30V

01 = 10V < VOUT ≤ 20V

10 = 5V < VOUT ≤ 10V

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

DC2_FBSRC=11)

Reset by state machine. Default held in metal

mask.

DC2_RMPL

DC-DC2 compensation ramp

{DC2_RMPH, DC2_RMPL}

00 = 20V < VOUT ≤ 30V

01 = 10V < VOUT ≤ 20V

10 = 5V < VOUT ≤ 10V

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

DC2_FBSRC=11)

Reset by state machine. Default held in metal

mask.

1:0

DC2_FBSRC[1:0]

DC-DC2 voltage feedback selection

00 = voltage feedback (using external resistor

divider on pin FB2)

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.

WM8352 Datasheet(PDF) 296 Page - Wolfson Microelectronics plc

WM8352 Datasheet(HTML) 296 Page - Wolfson Microelectronics plc

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