Datasheet > ACT8840_15

ACT8840_15

更新时间： 2024-02-15 15:12:28

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		/
页数	文件大小	规格书
38页	724K
描述
Advanced PMU for Single-core Application Processors

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

ACT8840_15 数据手册

ACT8840

Rev 2, 29-Jan-15

Advanced PMU for Single-core Application Processors

FEATURES

GENERAL DESCRIPTION

The ACT8840 is a complete, cost effective, and

highly-efficient ActivePMU^TMpower management

solution optimized for the power, voltage

sequencing and control requirements of general

Single-core application processor.

INTEGRATED POWER SUPPLIES

 Four DC/DC Step-Down (Buck) Regulators

 2 x 1.8A, 2 x 1.3A

 Five Low-Noise LDOs

 2 x 150mA, 3 x 350mA

The ACT8840 features four fixed-frequency,

current-mode, synchronous PWM step-down

converters that achieve peak efficiencies of up to

97%. These regulators operate with a fixed

frequency of 2.25MHz, minimizing noise in sensitive

applications and allowing the use of small external

components. These buck regulators supply up to

1.8A of output current and can fully satisfy the

power and control requirements of the single-core

application processor. Dynamic Voltage Scaling

(DVS) is supported either by dedicated control pins,

or through I²C interface to optimize the energy-per-

task performance for the processor. This device

also include eight low-noise LDOs (up to 350mA

per LDO), one always-ON LDO and an integrated

backup battery charger to provide a complete

power system for the processor.

 Three Low-Input Voltage LDOs

 1 x 150mA, 2 x 350mA

 One Low IQ Keep-Alive LDO

 Backup Battery Charger

SYSTEM CONTROL AND INTERFACE

 Six General Purpose I/O with PWM Drivers

 I²C Serial Interface

 Interrupt Controller

SYSTEM MANAGEMENT

 Reset Interface and Sequencing Controller

Power on Reset

Soft / Hard Reset

Watchdog Supervision

Multiple Sleep Modes

The power sequence and reset controller provides

power-on reset, SW-initiated reset, and power cycle

reset for the processor. It also features the

watchdog supervisory function. Multiple sleep

modes with autonomous sleep and wake-up

sequence control are supported.

 Thermal Management Subsystem

The thermal management and protection

subsystem allows the host processor to manage the

power dissipation of the PMU and the overall

system dynamically. The PMU provides a thermal

warning to the host processor when the

temperature reaches a certain threshold such that

the system can turn off some of the non-essential

functions, reduce the clock frequency and etc to

manage the system temperature.

APPLICATIONS

 Tablet PC

 Mobile Internet Devices (MID)

 Ebooks

 Personal Navigation Devices

The ACT8840 is available in a compact, Pb-Free

and RoHS-compliant TQFN66-48 package.

Innovative Power^TM

- 1 -

www.active-semi.com

Active-Semi Proprietary―For Authorized Recipients and Customers

ActivePMU^TMis a trademark of Active-Semi.

I²C^TMis a trademark of NXP.

12 3 4 5 6 7...38

中文翻译

下载PDF

与ACT8840_15相关器件

型号	品牌	获取价格	描述	数据表
ACT8840QM175-T	ACTIVE-SEMI	获取价格	Advanced PMU for Single-core Application Processors
ACT8840QM17A-T	ACTIVE-SEMI	获取价格	Advanced PMU for Single-core Application Processors
ACT8840QM188-T	ACTIVE-SEMI	获取价格	Advanced PMU for Single-core Application Processors
ACT8840QM244-T	ACTIVE-SEMI	获取价格	Advanced PMU for Single-core Application Processors
ACT88430QJ101-T	ACTIVE-SEMI	获取价格	Advanced PMU for Microcontrollers and Solid State Drive Applications
ACT88430QJ-T	ACTIVE-SEMI	获取价格	Advanced PMU for Microcontrollers and Solid State Drive Applications
ACT8846	ACTIVE-SEMI	获取价格	Advanced PMU for Multi-core Application Processors
ACT8846_14	ACTIVE-SEMI	获取价格	Advanced PMU for Multi-core Application Processors
ACT8846_16	ACTIVE-SEMI	获取价格	Advanced PMU for Multi-core Application Processors
ACT8846QM460-T	ACTIVE-SEMI	获取价格	Advanced PMU for Multi-core Application Processors

与ACT8840_15相关文章

LM317T数据手册解读：产品特性、应用、封装与引脚详解
2024-06-14

14
一文带你了解?DB3二极管好坏判断、参数信息、替代推荐
2024-06-14

16
LM358DR数据手册：引脚说明、电气参数及替换型号推荐
2024-06-14

10
OP07CP数据手册解读：引脚信息、电子参数
2024-06-14

16

产品中心

服务支持

精选活动

关于我们

帮助中心

ACT8840_15

ACT8840_15 数据手册

与ACT8840_15相关器件

与ACT8840_15相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

ACT8840_15

ACT8840_15 数据手册

与ACT8840_15相关器件

与ACT8840_15相关文章

您还可以找

您在本页遇到什么问题？