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MCP73871-2CAI/ML

更新时间： 2024-11-21 12:19:39

品牌	Logo	应用领域
美国微芯 - MICROCHIP		电源电路电池电源管理电路控制器 PC
页数	文件大小	规格书
38页	670K
描述
Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controller

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MCP73871-2CAI/ML 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	HVQCCN, LCC20,.16SQ,20	针数：	20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	18 weeks
风险等级：	1.34	Samacsys Confidence：	3
Samacsys Status：	Released	Samacsys PartID：	159553
Samacsys Pin Count：	21	Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Quad Flat No-Lead	Samacsys Footprint Name：	(ML)20-Lead(QFN)
Samacsys Released Date：	2015-04-16 09:48:08	Is Samacsys：	N
可调阈值：	YES	模拟集成电路 - 其他类型：	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：	S-PQCC-N20	JESD-609代码：	e3
长度：	4 mm	湿度敏感等级：	3
信道数量：	1	功能数量：	1
端子数量：	20	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVQCCN	封装等效代码：	LCC20,.16SQ,20
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）：	260	电源：	5 V
认证状态：	Not Qualified	座面最大高度：	1 mm
子类别：	Power Management Circuits	最大供电电流 (Isup)：	3.75 mA
最大供电电压 (Vsup)：	6 V	最小供电电压 (Vsup)：	4.65 V
标称供电电压 (Vsup)：	5.35 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn) - annealed
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	40
宽度：	4 mm	Base Number Matches：	1

MCP73871-2CAI/ML 数据手册

MCP73871

Stand-Alone System Load Sharing and Li-Ion / Li-Polymer

Battery Charge Management Controller

Features

Applications

• Integrated System Load Sharing and Battery

Charge Management

• GPSs / Navigators

• PDAs and Smart Phones

• Portable Media Players and MP3 Players

• Digital Cameras

- Simultaneously Power the System and

Charge the Li-Ion Battery

- Voltage Proportional Current Control (VPCC)

ensures system load has priority over Li-Ion

battery charge current

• Bluetooth Headsets

• Portable Medical Devices

• Charge Cradles / Docking Stations

• Toys

- Low-Loss Power-Path Management with

Ideal Diode Operation

• Complete Linear Charge Management Controller

- Integrated Pass Transistors

Description

- Integrated Current Sense

The MCP73871 device is a fully integrated linear

solution for system load sharing and Li-Ion / Li-Polymer

battery charge management with ac-dc wall adapter

and USB port power sources selection. It’s also

capable of autonomous power source selection

between input or battery. Along with its small physical

size, the low number of required external components

makes the device ideally suited for portable

applications.

- Integrated Reverse Discharge Protection

- Selectable Input Power Sources: USB Port or

AC-DC Wall Adapter

• Preset High Accuracy Charge Voltage Options:

- 4.10V, 4.20V, 4.35V or 4.40V

- ±0.5% Regulation Tolerance

• Constant Current / Constant Voltage (CC/CV)

Operation with Thermal Regulation

The MCP73871 device automatically obtains power for

the system load from a single-cell Li-Ion battery or an

input power source (ac-dc wall adapter or USB port).

The MCP73871 device specifically adheres to the

current drawn limits governed by the USB specification.

With an ac-dc wall adapter providing power to the

system, an external resistor sets the magnitude of 1A

maximum charge current while supports up to 1.8A

total current for system load and battery charge

current.

• Maximum 1.8A Total Input Current Control

• Resistor Programmable Fast Charge Current

Control: 50 mA to 1A

• Resistor Programmable Termination Set Point

• Selectable USB Input Current Control

- Absolute Maximum: 100 mA (L) / 500 mA (H)

• Automatic Recharge

• Automatic End-of-Charge Control

• Safety Timer With Timer Enable/Disable Control

• 0.1C Preconditioning for Deeply Depleted Cells

• Battery Cell Temperature Monitor

The MCP73871 device employs a constant current /

constant voltage (CC/CV) charge algorithm with

selectable charge termination point. The constant

voltage regulation is fixed with four available options:

4.10V, 4.20V, 4.35V, or 4.40V to accommodate new,

emerging battery charging requirements. The

MCP73871 device also limits the charge current based

on die temperature during high power or high ambient

conditions. This thermal regulation optimizes the

charge cycle time while maintaining device reliability.

• Undervoltage Lockout (UVLO)

• Low Battery Status Indicator (LBO)

• Power-Good Status Indicator (PG)

• Charge Status and Fault Condition Indicators

• Numerous Selectable Options Available for a

Variety of Applications:

- Refer to Section 1.0 “Electrical

The MCP73871 device includes a low battery indicator,

Characteristics” for Selectable Options”

power-good indicator and two charge status

indicators that allows for outputs with LEDs or

communication with host microcontrollers. The

MCP73871 device is fully specified over the ambient

temperature range of -40°C to +85°C.

- Refer to the “Product Identification

System” for Standard Options

• Temperature Range: -40°C to +85°C

• Packaging: 20-Lead QFN (4 mm x 4 mm)

DS22090B-page 1

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中文翻译

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MCP73871-2CAI/ML 替代型号

型号	品牌	替代类型	描述	数据表
MCP73871T-2CCI/ML	MICROCHIP	完全替代	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871-2CCI/ML	MICROCHIP	完全替代	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871-2AAI/ML	MICROCHIP	完全替代	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll

与MCP73871-2CAI/ML相关器件

型号	品牌	获取价格	描述	数据表
MCP73871-2CCI/ML	MICROCHIP	获取价格	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871-3CAI/ML	MICROCHIP	获取价格	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871-3CCI/ML	MICROCHIP	获取价格	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871-4CAI/ML	MICROCHIP	获取价格	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871-4CCI/ML	MICROCHIP	获取价格	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871T	MICROCHIP	获取价格	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871T-1AAI/ML	MICROCHIP	获取价格	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871T-1CAI/ML	MICROCHIP	获取价格	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871T-1CCI/ML	MICROCHIP	获取价格	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll
MCP73871T-2AAI/ML	MICROCHIP	获取价格	Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controll

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