ACT8712QLEHA-T View Datasheet(PDF) - Active-Semi, Inc

Part Name

Description

MFG CO.

ACT8712QLEHA-T

Four Channel Integrated Power Management IC for Handheld Portable Equipment

Active-Semi, Inc 

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ACT8712

Rev0, 25-Feb-08

STEP-DOWN DC/DC CONVERTERS

REGISTER DESCRIPTIONS

Note: See Table 1 for default register settings.

Table 2:

REG1 Control Register Map

ADDRESS

D7

D6

D5

10h

R

VRANGE

11h

R

R

R

12h

W/E

W/E

R

13h

R

R

R

DATA

D4

D3

D2

VSET

R

R

R

R

R

R

W/E

R

W/E

R: Read-Only bits. Default Values May Vary.

W/E: Write-Exact bits. Read/Write bits which must be written exactly as specified in Table 1.

Table 3:

REG1 Control Register Bit Descriptions

D1

D0

R

MODE

R

R

OK

W/E

ADDRESS

10h

NAME

VSET

10h

VRANGE

10h

11h

MODE

11h

12h

12h

13h

13h

OK

13h

13h

13h

13h

BIT ACCESS

FUNCTION

[5:0]

R/W

REG1 Output Voltage Selection

[6]

R/W

REG1 Reference Voltage

Selection

[7]

R

[0]

R/W

Mode Selection

[7:1]

R

[5:0]

R

[7:6]

W/E

[0]

W/E

[1]

R

REG1 Power-OK

[2]

W/E

[3]

R

[4]

W/E

[7:5]

R

DESCRIPTION

See Table 4

0

Min VOUT = 1.1V

1

Min VOUT = 1.25V

READ ONLY

0

PFM/PWM

1

Forced PWM

READ ONLY

READ ONLY

WRITE-EXACT

WRITE-EXACT

0

Output is not OK

1

Output is OK

WRITE-EXACT

READ ONLY

WRITE-EXACT

READ ONLY

Innovative Products. Active Solutions.

ActivePMUTM is a trademark of Active-Semi.

I2CTM is a trademark of Philips Electronics.

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www.active-semi.com

Copyright © 2008 Active-Semi, Inc.

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