ACT8848 datasheet(1/2 Pages) ACTIVE-SEMI

tên linh kiện	ACT8848

Giải thích chi tiết về linh kiện	Advanced PMU for Multi-core Application Processors

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nhà sản xuất	ACTIVE-SEMI [Active-Semi, Inc]

Trang chủ	http://www.active-semi.com

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Innovative Power

TM

- 1 -

www.active-semi.com

ActivePMU

TM is a trademark of Active-Semi.

I

2CTM is a trademark of NXP.

ACT8848

Advanced PMU for Multi-core Application Processors

FEATURES

INTEGRATED POWER SUPPLIES

• Four DC/DC Step-Down (Buck) Regulators

− 2 x 2.8A, 2 x 1.5A

• Five Low-Noise LDOs (350mA)

• Three Low-Input Voltage LDOs (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

• Thermal Management Subsystem

APPLICATIONS

• Tablet PC

• Mobile Internet Devices (MID)

• Ebooks

• Personal Navigation Devices

GENERAL DESCRIPTION

The ACT8848 is a complete, cost effective, and

highly-efficient ActivePMU

TM

power management

solution

optimized

for

the

power,

voltage

sequencing and control requirements of Telechips

TCC88xx

and

Samsung

S5PC210

application

processors.

(Please

see

the

ORDERING

INFORMATION section to get the

Full Part

Numbers.)

The

ACT8848

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

2.8A of output current and can fully satisfy the

power and control requirements of the multi-core

application processors. Dynamic Voltage Scaling

(DVS) is supported either by dedicated control pins,

or through I2C interface to optimize the energy-per-

task performance for the processors. This device

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

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

backup battery charger to provide the complete

power system for the processors.

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.

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.

The ACT8848 is available in a compact, Pb-Free

and RoHS-compliant TQFN66-48 package.

Product Brief, 05-Dec-12

Số phần tương tự - ACT8848

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Active-Semi, Inc	ACT8848	599Kb / 37P	Advanced PMU for Multi-core Application Processors Rev 2, 15-Nov-12
	ACT8848QM135-T	599Kb / 37P	Advanced PMU for Multi-core Application Processors Rev 2, 15-Nov-12
	ACT8848QM144-T	599Kb / 37P	Advanced PMU for Multi-core Application Processors Rev 2, 15-Nov-12
	ACT8848QM201-T	599Kb / 37P	Advanced PMU for Multi-core Application Processors Rev 2, 15-Nov-12
	ACT8848	599Kb / 37P	Advanced PMU for Multi-core Application Processors Rev 2, 15-Nov-12

More results

Mô tả tương tự - ACT8848

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Active-Semi, Inc	ACT8846	81Kb / 2P	Advanced PMU for Multi-core Application Processors 22-Oct-12
	ACT8847	83Kb / 2P	Advanced PMU for Multi-core Application Processors 05-Dec-12
	ACT8846	674Kb / 40P	Advanced PMU for Multi-core Application Processors Rev 1, 15-May-13
	ACT8847	763Kb / 38P	Advanced PMU for Multi-core Application Processors Rev 5, 15-Nov-12
	ACT8848	599Kb / 37P	Advanced PMU for Multi-core Application Processors Rev 2, 15-Nov-12
	ACT8846	977Kb / 40P	Advanced PMU for Multi-core Application Processors Rev 4, 25-May-16
	ACT8847	2Mb / 39P	Advanced PMU for Multi-core Application Processors REV 8, 17-JAN-2017
	ACT8846	1Mb / 44P	Advanced PMU for Multi-core Application Processors Rev 7.0, 06-Dec-2017
	ACT8847_17	1Mb / 42P	Advanced PMU for Multi-core Application Processors REV 9, 27-June-17
	ACT8849	708Kb / 35P	Advanced PMU for Multi-core Application Processors Rev PrB, 12-Jun-14

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