Datasheet > ACT8935

ACT8935

更新时间： 2024-11-19 06:36:03

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		/
页数	文件大小	规格书
2页	161K
描述
Nine Channel ActivePath™ Power Management IC

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ACT8935 数据手册

ACT8935

Active- Semi

Product Brief, 24-Sep-09

Advanced Information―All Information Subject to Change

Nine Channel ActivePath^TMPower Management IC

FEATURES

GENERAL DESCRIPTION

• ActivePath^TMLi+ Charger with System Power

The ACT8935 is a complete, cost effective, 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 seven power supply

channels.

Selection

• Seven Integrated Regulators

− 2×900mA High Efficiency Step-Down

DC/DCs

− 700mA High Efficiency Step-Down DC/DC

− 4×150mA Low Noise, High PSRR LDOs

• Flexible Interrupt Control

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 Li+ charger.

• I²C^TMSerial Interface

• Minimal External Components

• Compatible with USB or AC-Adapter Charging

• 5x5mm, Thin-QFN (TQFN55-40) Package

− Only 0.75mm Height,

− RoHS Compliant

REG1, REG2, and REG3 are fixed-frequency,

current-mode step-down DC/DC converters. REG1

and REG3 are capable of supplying up to 900mA of

output current, while REG2 supports up to 700mA.

REG4, REG5, REG6, and REG7 are high

performance, low-noise, low-dropout linear

regulators that output up to 150mA each. Finally, an

I²C serial interface provides programmability for the

DC/DC converters and LDOs.

APPLICATIONS

• Personal Navigation Devices

• Portable Media Players

• Smart Phones

SYSTEM BLOCK DIAGRAM

Li+ Battery

CHGIN

ActivePath^TM

ACIN

VSYS

CHGLEV

nSTAT

ISET

REG1

Step-Down

DC/DC

Single-Cell Li+

Battery Charger

OUT1

0.6V to 3.9V

Up to 900mA

REG2

Step-Down

DC/DC

OUT2

0.6V to 3.9V

Up to 700mA

PBIN

PWRHLD

PWREN

EXTON

nPBSTAT

SCL

REG3

Step-Down

DC/DC

OUT3

0.6V to 3.9V

Up to 900mA

Pb-free

System

Control

REG4

LDO

OUT4

0.6V to 3.9V

Up to 150mA

SDA

nIRQ

REG5

LDO

OUT5

0.6V to 3.9V

Up to 150mA

nRSTO

nLBO

REG6

LDO

OUT6

0.6V to 3.9V

Up to 150mA

LBI

ACT8935

_ActivePMU

REG7

LDO

OUT7

0.6V to 3.9V

Up to 150mA

Innovative Power^TM

- 1 -

www.active-semi.com

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

I²C^TMis a trademark of Philips Electronics.

中文翻译

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与ACT8935相关器件

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ACT8935QJ10D-T	ACTIVE-SEMI	获取价格	Advanced PMU for SiRF PrimaTM and Atlas IVTM
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ACT8937_14	ACTIVE-SEMI	获取价格	Advanced PMU for Samsung S5PC100, S5PC110 and S5PV210 Processors
ACT8937A	ACTIVE-SEMI	获取价格	Advanced PMU for Samsung S5PC100, S5PC110 and S5PV210 Processors
ACT8937AQJ106-T	ACTIVE-SEMI	获取价格	Advanced PMU for Samsung S5PC100, S5PC110 and S5PV210 Processors
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