MAX8814

更新时间： 2024-10-01 04:41:35

品牌	Logo	应用领域
美信 - MAXIM		电池
页数	文件大小	规格书
12页	215K
描述
28V Linear Li+ Battery Charger with Smart Autoboot Assistant

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MAX8814 数据手册

19-0994; Rev 0; 10/07

28V Linear Li+ Battery Charger with

Smart Autoboot Assistant

MAX814

General Description

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. The MAX8814 integrates the current-

sense circuit, MOSFET pass element, thermal-

regulation circuitry, and eliminates the reverse-blocking

Schottky diode to create the simplest and smallest

charging solution for handheld equipment.

o CCCV, Thermally Regulated Linear 1-Cell Li+

Battery Charger

o No External MOSFET, Reverse Blocking Diode, or

Current-Sense Resistor

o Programmable Fast-Charge Current (1A

max)

RMS

o Proprietary Die Temperature Regulation Control

(+115°C)

The IC controls the charging sequence from the pre-

qualification state through constant-current fast-charge

and the final constant voltage charge. Proprietary ther-

mal-regulation circuitry limits the die temperature dur-

ing fast-charging or when the IC is exposed to high

ambient temperatures, allowing maximum charging

current without damaging the IC.

o 4.25V to 28V Input Voltage Range with Input OVP

Above +7V

o Charge-Current Monitor for Fuel Gauging (ISET)

o Low Dropout Voltage (300mV at 500mA)

o Input Power-Source Detection Output (POK),

Charge-Enable Input (EN)

The MAX8814 achieves high flexibility by providing an

adjustable fast-charge current through an external

resistor. Other features include an active-low control

input (EN) and an active-low input power-source detec-

tion output (POK). The IC also features a booting assis-

tant circuit that distinguishes input sources and battery

connection and provides an output signal (ABO) for

system booting.

o Soft-Start Limits Inrush Current

o Output for Autobooting (ABO)

o Tiny 2mm x 2mm, 8-Pin TDFN Package, 0.8mm

Height (max)

The MAX8814 accepts an input supply range from

4.25V to 28V, but disables charging if the input voltage

exceeds +7V to protect against unqualified or faulty AC

adapters. The IC operates over the extended tempera-

ture range (-40°C to +85°C) and is available in a com-

pact 8-pin thermally enhanced TDFN 2mm x 2mm

package (0.8mm max height).

Ordering Information

TEMP

PIN-

PKG

TOP

PART

RANGE PACKAGE

CODE

MARK

-40°C to 8 TDFN

MAX8814ETA+

T822+2

ABI

+85°C

2mm x 2mm

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

Applications

Cellular and Cordless Phones

Smartphones and PDAs

MP3 Players

Typical Operating Circuit

BATT

4.25V TO 28V

2.2μF

Li+

Digital Still Cameras

USB Appliances

MAX8814

SYSTEM

SUPPLY

Charging Cradles and Docks

Bluetooth^®Equipment

OFF

ABI

ISET

POK

ABO

GND

Bluetooth is a registered trademark of Bluetooth SIG.

Pin Configuration appears at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim's website at www.maxim-ic.com.

12 3 4 5 6 7...12

中文翻译

下载PDF

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

与MAX8814相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

31
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

27
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

26
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

37

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX8814

MAX8814 数据手册

与MAX8814相关器件

与MAX8814相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX8814

MAX8814 数据手册

与MAX8814相关器件

与MAX8814相关文章

您还可以找

您在本页遇到什么问题？