Datasheet > MAX8814

MAX8814

更新时间： 2024-09-25 14:58:27

品牌	Logo	应用领域
亚德诺 - ADI		电池
页数	文件大小	规格书
11页	212K
描述
28V线性Li+电池充电器，提供智能化管理

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中文翻译

获取价格

数据手册

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MAX8814 数据手册

EVALUATION KIT AVAILABLE

28V Linear Li+ Battery Charger

with Smart Autoboot Assistant

MAX8814

General Description

Benefits and Features

The MAX8814 intelligent, stand-alone constant-current,

constant-voltage (CCCV), thermally regulated linear

charger is designed for charging a single-cell lithium-ion

(Li+) battery.

• Reduces External Components and Total Cost

• Integrated Current-Sensing Circuit, MOSFET Pass

Element, and Thermally Regulation Circuitry

• No Reverse Blocking Diode Required

The MAX8814 controls the charging sequence from the

prequalification state through constant-current fast-

charge and the final constant voltage charge. The IC

achieves high flexibility by providing an adjustable fast-

charge current through an external resistor. It also fea-

tures a booting assistant circuit that distinguishes input

sources and battery connection, and provides an out-

put signal (ABO) for system booting.

• Guarantees Safe and Accurate Battery Charging

• Proprietary Die Temperature Regulation Control

(+115°C) Allows Maximum Charging Current

Without Damaging the IC

• 4.25V to 28V Input Voltage Range with Over-

Voltage Protection Above +7V to Protect Against

Unqualified or Faulty AC Adapters

• Soft-Start Limits Inrush Current

The device operates over the extended temperature

range (-40°C to +85°C), and is available in an 8-pin

thermally enhanced 2mm x 2mm TDFN package

(0.8mm max height).

• Integrated System Features for Compact Designs

• Programmable Fast-Charge Current: 1A

Max

RMS

• Charge-Current Monitor for Fuel Gauging (ISET)

• Input Power-Source Detection Output (POK) and

Charge-Enable Input (EN)

Applications

Smartphones

• Output for Autobooting (ABO)

• Reduce Power Dissipation

Portable Music Players

Digital Still Cameras

USB Appliances

• Low Dropout Voltage (300mV at 500mA)

Ordering Information

Charging Cradles and Docks

Bluetooth^®Equipment

TOP

MARK

PART

TEMP RANGE PIN-PACKAGE

8 TDFN

(2mm x 2mm)

MAX8814ETA+ -40°C to +85°C

ABI

+Denotes a lead-free and RoHS-compliant package.

Typical Operating Circuit

BATT

4.25V TO 28V

2.2µF

Li+

MAX8814

SYSTEM

SUPPLY

OFF

ABI

ISET

POK

ABO

GND

Bluetooth is a registered trademark of Bluetooth SIG.

Pin Configuration appears at end of data sheet.

19-0994; Rev 3; 5/15

12 3 4 5 6 7...11

中文翻译

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与MAX8814相关器件

型号	品牌	获取价格	描述	数据表
MAX8814ETA+	MAXIM	获取价格	28V Linear Li+ Battery Charger with Smart Autoboot Assistant
MAX8814ETA+T	MAXIM	获取价格	Switching Regulator/Controller, PDSO8,
MAX8814EVKIT	MAXIM	获取价格	Fully Assembled and Tested
MAX8814EVKIT+	MAXIM	获取价格	Fully Assembled and Tested
MAX8815A	MAXIM	获取价格	1A, 97% Efficiency, 30レA Quiescent Current St
MAX8815A	ADI	获取价格	1A、97%效率、30μA静态电流、升压转换器，具有真关断
MAX8815AETB+	MAXIM	获取价格	1A, 97% Efficiency, 30レA Quiescent Current St
MAX8815AEVKIT	MAXIM	获取价格	Guaranteed 1A Output Current at 5V from 2.5V Input
MAX8815AEVKIT+	MAXIM	获取价格	Guaranteed 1A Output Current at 5V from 2.5V Input
MAX8819	MAXIM	获取价格	PMIC with Integrated Chargers and Smart Power Selector in a 4mm x 4mm TQFN

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