ACT8828

Product Brief, 12-Mar-09

Active-Semi

Innovative Power

TM

- 2 -

www.active-semi.com

Copyright © 2009 Active-Semi, Inc.

PRODUCT OPTIONS

FUNCTIONAL BLOCK DIAGRAM

: Output voltage options detailed in this table represent standard voltage options, and are available for samples or production orders.

Contact Active-Semi for more information regarding semi-custom output voltage combinations.

: Contact factory for additional available products or custom requirements.

Block

Function

Output Voltage



Capability



ActivePath

System Power Selection

4.6V

Up to 2.4A

CHGR

Battery Charger

4.20V (4.10V to 4.30V available)

Programmable up to 1A

REG1

Step-Down DC/DC

Adjustable, or 0.8V to 4.4V

1.3A

REG2

Step-Down DC/DC

1.0A

REG3

Step-Down DC/DC

0.55A

REG4

Step-Up DC/DC

Up to 30V

Up to 7s × 3p WLEDs

ON2

nPBIN

PUSH BUTTON

nIRQ

ON3

VSYS

ON4

Reference

ACT8828

ON1

REFBP

Charge

Control

CHG_IN

BAT

CURRENT SENSE

VOLTAGE SENSE

nSTAT

CHARGE STATUS

Up to 12V

ACIN

AC Adaptor

USB

Li+ Battery

BODY

SWITCH

SDA

SCL

nRSTO

DCCC

ActivePath

Control

VSEL

ISET

System Supply

VSYS

BODY

SWITCH

2.9V

PRE-

CONDITION

110°C

THERMAL

REGULATION

GA

VP3

GP3

SW3

OUT3

OUT3

To VSYS

VP2

GP2

SW2

OUT2

OUT2

To VSYS

(Optional)

VSYS

7s × 3p

WLEDs

GP4

SW4

To VSYS

OUT4

FB4

OVP4

VP1

GP1

SW1

OUT1

OUT1

To VSYS

+

TH

BTR

System

Control

CHGLEV

VSYS

EP

OUT1

OUT1