Datasheet > ACT8810QJ1C1-T

ACT8810QJ1C1-T

更新时间： 2022-12-14 14:53:52

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		/
页数	文件大小	规格书
52页	884K
描述
Eight Channel ActivePathTM Power Management IC

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ACT8810QJ1C1-T 数据手册

Active- Semi

ACT8810

Rev 4, 01-Oct-09

Eight Channel ActivePath^TMPower Management IC

FEATURES

GENERAL DESCRIPTION

• ActivePath^TMLi+ Charger with System Power

The patent-pending ACT8810 is a complete, cost effect

tive, highly-efficient ActivePMU^TMpower 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 ActivePath^TMcomplete battery charging

and management system with six power supply

channels.

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

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.

• I²C^TMSerial Interface

• Minimal External Components

• Compatible with USB or AC-Adapter

Charging

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

− Only 0.75mm Height

− RoHS Compliant

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.

APPLICATIONS

• Personal Navigation Devices

• Portable Media Players

• Smart Phones

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

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

SYSTEM BLOCK DIAGRAM

Battery

CHG_IN

Programmable

Up to 1A

VSYS

CHGLEV

ActivePath^TM

DCCC

ISET

ACIN

nSTAT

REG1

Step-Down

DC/DC

Single-Cell Li+

Battery Charger

OUT1

Adjustable, or

0.8V to 4.4V

Up to 1.3A

REG2

Step-Down

DC/DC

BTR

OUT2

Adjustable, or

0.8V to 4.4V

Up to 1.0A

nPBIN

nIRQ

nRSTO

SCL

SDA

ON1

ON2

ON3

VSEL

REG3

Step-Down

DC/DC

OUT3

Adjustable, or

0.8V to 4.4V

Up to 0.55A

System

Control

REG4

LDO

OUT4

0.9V to 3.3V

Up to 360mA

REG5

LDO

OUT5

0.9V to 3.3V

Up to 360mA

REG6

RTC_LDO

ACT8810

OUT6

0.9V to 3.3V

Up to 30mA

PMU

Active

Innovative Power^TM

- 1 -

www.active-semi.com

ActivePMU^TMand ActivePath^TMare trademarks of Active-Semi.

I²C^TMis a trademark of Philips Electronics.

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