ACT8770

- 2 -

www.active-semi.com

Copyright © 2008 Active-Semi, Inc.

Product Brief, 19-Feb-08

PRODUCT OPTIONS

FUNCTIONAL BLOCK DIAGRAM

Charge

Control

VP1

VP2

GP12

SW2

SW1

ON1

nMSTR

PUSH

BUTTON

nIRQ

ON3

VSYS

VIN

BAT

CHGLEV

2.9V

PRE-

CONDITION

CURRENT

SENSE

VOLTAGE

SENSE

OUT2

OUT1

110°C

THERMAL

REGULATION

OUT2

FLOAT

OUT2

4.0V

VINUVLO

nSTAT

CHARGE STATUS

4.3V to 6V

To Battery

OUT2

OUT1

VSYS

BODY AND

VSYS

CONTROL

VINUVLO

ACIN

ON5

GP12

LDO

REG3

LDO

REG4

LDO

REG5

OUT3

OUT4

OUT5

INL

AC Adaptor

USB

+

Li+ Battery

System

Control

ACT8770

GA

OUT3

OUT4

OUT5

To Battery

To Battery

Block

Function

Output Voltage

Capability

CHGR

Battery Charger

4.20V (4.10V to 4.30V available)

Selectable up to 1A

REG1

Step-Down DC/DC

0.645V to 3.3V

350mA

REG2

Step-Down DC/DC

550mA

REG3

LDO

1.4V to 3.7V

250mA

REG4

LDO

250mA

REG5

LDO

250mA

: 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.