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ACT8846QM460-T

更新时间： 2024-02-26 16:44:52
品牌 Logo 应用领域
技领 - ACTIVE-SEMI /
页数 文件大小 规格书
40页 977K
描述
Advanced PMU for Multi-core Application Processors

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ACT8846QM460-T 技术参数

是否Rohs认证： 符合生命周期：Active
包装说明：HVQCCN, LCC48,.24SQ,16Reach Compliance Code：compliant
风险等级：5.8可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：S-XQCC-N48
长度：6 mm信道数量：19
功能数量：1端子数量：48
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：UNSPECIFIED封装代码：HVQCCN
封装等效代码：LCC48,.24SQ,16封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
座面最大高度：0.8 mm最大供电电流 (Isup)：12 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：3 V
标称供电电压 (Vsup)：3.6 V表面贴装：YES
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.4 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：6 mm

ACT8846QM460-T 数据手册

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ACT8846  
Rev 4, 25-May-16  
Advanced PMU for Multi-core Application Processors  
FEATURES  
GENERAL DESCRIPTION  
The ACT8846 is a complete, cost effective, and  
highly-efficient ActivePMUTM power management  
solution optimized for the power, voltage  
sequencing and control requirements of Rockchip  
RK31x8 application processor family.  
INTEGRATED POWER SUPPLIES  
 Four DC/DC Step-Down (Buck) Regulators  
 2 x 2.8A, 2 x 1.5A  
 Five Low-Noise LDOs  
 2 x 150mA, 3 x 350mA  
The ACT8846 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 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  
 Four 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)  
 E-books  
 Personal Navigation Devices  
 Smart Phones  
The ACT8846 is available in a compact, Pb-Free  
and RoHS-compliant TQFN66-48 package.  
Innovative PowerTM  
- 1 -  
www.active-semi.com  
ActivePMUTM is a trademark of Active-Semi.  
I2CTM is a trademark of NXP.  
Copyright © 2016 Active-Semi, Inc.  
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