快速浏览 - MAX8671X 集成充电器和智能电源选择器的PMIC，用于手持设备

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MAX8671X集成型电源管理IC (PMIC)理想用于便携式媒体播放器和其他手持设备中。除了五路稳定输出电压外，MAX8671X还集成单节锂离子(Li+)或锂离子聚合物(Li聚合物)充电器和Smart Power Selector™，具有双电源(AC-DC适配器和USB)输入*。双输入智能电源选择器支持具有两路或一路电源连接器的终端产品，芯片集成了所有用于充电和切换电池与外部电源之间系统负载的开关。无需外部MOSFET。

Maxim的智能电源选择器充分利用有限的USB或AC至DC适配器电源。电池充电电流和输入电流门限可独立设置。没有用到的那部分输入电源被系统用于向电池充电。充电电流和DC电流门限最高可编程至1A，而USB输入电流可设置为100mA至500mA。自动输入选择将系统负载由电池切换至外部电源。其他特性包括过压保护、电流状态和故障输出、电源就绪监视器、充电定时器和电池热敏电阻监视器。此外，片上温度限制电路还可降低电池充电速率，防止电池过热。

MAX8671X的所有输出均可提供可调电压。同时还可提供工厂预设输出电压的类似器件(供货信息请与厂商联系)。

Key Specifications: Battery Chargers

Part Number

Cell Chemistry

Number of Lithium-Ion cells

Protected V_IN (max) (V)

Charging V_IN (max) (V)

Charge Rate Set by

Max. Charge Current (A)

Charge Termination

Charge Regulation

Features

EV-Kit

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX8671X

Li-Ion
Li-Polymer

6.6

Logic Input
Resistor

Min. Charge Current

Linear

•	Dual USB/Adapter Input

•	Input Current Limit

•	Internal FET/Transistor

•	Smart Power Selector

•	Stand Alone

•	Thermal Die Regulation

•	Thermistor Input

•

Timer

•

USB Input

Yes

TQFN/40

-40 to +85

$4.50 @ 1k

See All Battery Chargers (62)

Key Specifications: Multifunction PMICs

Part Number

Primary Topology

Monitor/Control Features

DC-DC/Power Features

Battery Charger Features

V_IN (min) (V)

V_IN (max) (V)

Min. V_OUT (V)

Max. V_OUT (V)

I_OUT (A)

Operating Freq. (kHz)

Package

Smallest Available Package (max w/pins) (mm²)

Price^**

MAX8671X

Step-Down

Low Batt./POK Output

Current Limit
Fixed Freq./PWM
Internal Pwr. FETs
Soft Start
Sync. Rectifier

Battery Charger
Charge Timer
Dual USB/ Adapter Input
Input Current Limit
Smart Pwr. Selector
Thermal Die Regulation
Thermistor Input
USB Input

2.6

6.6

0.6

0.5

2000

TQFN/40

$4.50 @ 1k

See All Multifunction PMICs (79)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.