MPS平板电脑低耗电量的电池设计方案

发布时间：2013-09-12 阅读量：1197 来源: 发布人:

【导读】平板电脑的硬件配备有几项较为具体的目标：重量轻、功耗低、高分辩率显示屏，手写输入和具备无线网络功能。MPS低功耗平板电脑电池设计方案具有高性能，低功耗和高成本效益特点，特别适合应用于网络系统和平板电脑电源系统。

【方案特色】

1、高性能
2、低耗掉量
2、高成本效益
3、电源管理集成电路

【系统方块图】

Basic Power Architecture of TPC Power delivery for single cell parallel

Basic Power Architecture of TPC Power delivery for Two cells Battery in series

【规格说明】

MP28257/8/9: Smallest 2A ~ 4A POL solutions规格简介

    Wide 3V to 20V Operating InputRange
    2~4 A Output Current
    Low RDS(ON) Internal Power MOSFETs
    No bonding wires package
    Proprietary Switching Loss Reduction Technique
    Power saving operation support better light load efficiency
    Power Good Indicator in QFN Package
    Soft Shutdown
    Programmable Switching Frequency
    OCP, SCP, OVP, UVP Protection and
    Thermal Shutdown
    Output Adjustable from 0.8V to 13V
    Available in 8-pin SOIC or 12-pin QFN2x3 Packages

MP2249: Low voltage, Low Cost, high performance POL

    2.5V to 6V Operating InputRange
    3A Output Current
    Internal Power MOSFETs
    100% Duty Cycle in Dropout
    Output Discharge function
    1MHz constant switching frequency
    Power save mode at light load
    SCP, OCP, OVP, UVP Protection
    Available in 3x3 TQFN10 or SOIC8E Package