ACT8810QJ62C-T(2009) データシートの表示（PDF） - Active-Semi, Inc

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ACT8810QJ62C-T
(Rev.:2009)

Eight Channel ActivePath™ Power Management IC

Active-Semi, Inc 

Active-Semi

ACT8810

Rev 4, 01-Oct-09

Eight Channel ActivePathTM Power Management IC

FEATURES

• ActivePathTM Li+ Charger with System Power

Selection

• Six Integrated Regulators

− 1.3A High Efficiency Step-Down DC/DC

− 1.0A High Efficiency Step-Down DC/DC

− 0.55A High Efficiency Step-Down DC/DC

− 2×360mA Low Noise, High PSRR LDOs

− 30mA RTC LDO / Backup Battery Charger

• I2CTM Serial Interface

• Minimal External Components

• Compatible with USB or AC-Adapter

Charging

• 5mm × 5mm, Thin-QFN (TQFN55-40) Package

− Only 0.75mm Height

− RoHS Compliant

APPLICATIONS

• Personal Navigation Devices

• Portable Media Players

• Smart Phones

GENERAL DESCRIPTION

The patent-pending ACT8810 is a complete, cost effect

tive, highly-efficient ActivePMUTM power management

solution that is ideal for a wide range of high

performance portable handheld applications such as

personal navigation devices (PNDs). This device

integrates the ActivePathTM complete battery charging

and management system with six power supply

channels.

The ActivePath architecture automatically selects the

best available input supply for the system. If the

external input source is not present or the system load

current is more than the input source can provide, the

ActivePath supplies additional current from the battery

to the system. The charger is a complete, thermally-

regulated, stand-alone single-cell linear Li+ charger

that incorporates an internal power MOSFET.

REG1, REG2, and REG3 are three independent,

fixed-frequency, current-mode step-down DC/DC

converters that output 1.3A, 1.0A, and 0.55A,

respectively. REG4 and REG5 are high performance,

low-noise, low-dropout linear regulators that output

up to 360mA each. REG6 is a RTC LDO that

outputs up to 30mA for a real time clock. Finally, an

I2C serial interface provides programmability for the

DC/DC converters and LDOs.

The ACT8810 is available in a tiny 5mm x 5mm 40-

pin Thin-QFN package that is just 0.75mm thin.

SYSTEM BLOCK DIAGRAM

CHG_IN

CHGLEV

DCCC

ISET

ACIN

nSTAT

TH

BTR

nPBIN

nIRQ

nRSTO

SCL

SDA

ON1

ON2

ON3

VSEL

ActivePathTM

&

Single-Cell Li+

Battery Charger

System

Control

ACT8810

PMU TM

Active

REG1

Step-Down

DC/DC

REG2

Step-Down

DC/DC

REG3

Step-Down

DC/DC

REG4

LDO

REG5

LDO

REG6

RTC_LDO

Innovative PowerTM

-1-

ActivePMUTM and ActivePathTM are trademarks of Active-Semi.

I2CTM is a trademark of Philips Electronics.

Battery

Programmable

Up to 1A

VSYS

OUT1

Adjustable, or

0.8V to 4.4V

Up to 1.3A

OUT2

Adjustable, or

0.8V to 4.4V

Up to 1.0A

OUT3

Adjustable, or

0.8V to 4.4V

Up to 0.55A

OUT4

0.9V to 3.3V

Up to 360mA

OUT5

0.9V to 3.3V

Up to 360mA

OUT6

0.9V to 3.3V

Up to 30mA

www.active-semi.com

Copyright © 2009 Active-Semi, Inc.

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