MAX8922L

更新时间： 2024-11-23 11:14:27

品牌	Logo	应用领域
美信 - MAXIM		电池测试 GSM
页数	文件大小	规格书
15页	655K
描述
30V Li+ Linear Battery Charger with GSM Test Mode in 3mm x 2mm TDFN

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MAX8922L 数据手册

19-4929; Rev 1; 4/10

30V Li+ Linear Battery Charger

with GSM Test Mode in 3mm x 2mm TDFN

MAX892L

General Description

Features

Rated Input (IN)

The MAX8922L linear battery charger safely charges a

single-cell lithium-ion (Li+) battery. Charging rate is

optimized to accommodate the thermal characteristics

of a given application. There is no need to reduce the

maximum charge current at the worst-case charger

power dissipation. Charging is optimized for a single

Li+ cell using a control algorithm that includes low-bat-

tery precharging, voltage and current-limited fast

charging, and top-off charging, while continuously

monitoring for input overvoltage and device die-temper-

ature conditions. The fast-charge current and top-off

current thresholds are programmable by a simple

single-pin serial interface. The charger status and valid

input power are indicated by two open-drain outputs

(CHG and POK).

o Overvoltage-Protected 30V

o Input Overvoltage-Protected Safe 4.94V LDO

Output

o 2.3A GSM RF Test Mode

o No External FET, Blocking Diode, or Sense

Resistor Required

o Single-Pin Easy Programmable Fast-Charge and

GSM Test Mode (EN/SET)

o Resistor-Programmable Fast-Charge Current

(SETI)

o Resistor-Programmable Top-Off Current

Threshold (MIN)

o Prequalification Charge

The fast-charge current is defaulted to 400mA and pro-

grammable through the single-pin interface (EN/SET).

The MAX8922L also can be programmable to GSM test

mode through the single-pin interface.

o Power-OK Monitor Output (POK)

o Charging-Status Output (CHG)

o Die Temperature Regulation for Optimized

The MAX8922L is available in a tiny (3mm x 2mm x

0.8mm) 10-pin TDFN package.

Charge Rate

o Tiny (3mm x 2mm x 0.8mm) 10-Pin TDFN Package

Applications

Ordering Information

GSM/EDGE/UMTS/CDMA Cell Phones

Digital Cameras

PART

PIN-PACKAGE

TOP MARK

PDAs

MAX8922LETB+T

10 TDFN-EP*

AWN

Portable Media Players and MP3 Players

Wireless Appliances

+Denotes a lead(Pb)-free and RoHS-compliant package.

*EP = Exposed pad.

Note: This device operates in the -40°C to +85°C extended

operating temperature range.

Typical Operating Circuit

Pin Configuration

TOP VIEW

USB/AC ADAPTER

4.45V TO 30V

BAT

LDO

SETI

SYSTEM SUPPLY

MAX8922L

MIN

*EP

CHG

POK

EN\SET

TEST

GND

TDFN

(3mm x 2mm x 0.8mm)

*EP = EXPOSED PAD.

________________________________________________________________ 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...15

中文翻译

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与MAX8922L相关器件

型号	品牌	获取价格	描述	数据表
MAX8922LETB+T	MAXIM	获取价格	30V Li+ Linear Battery Charger with GSM Test Mode in 3mm x 2mm TDFN
MAX892L	MAXIM	获取价格	2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown
MAX892L	ADI	获取价格	限流型、高边P沟道开关，带有热关断
MAX892LC/D	MAXIM	获取价格	Current-Limited, High-Side P-Channel Switches with Thermal Shutdown
MAX892LC/D-T	MAXIM	获取价格	Switching Regulator, Current-mode
MAX892LEUA	MAXIM	获取价格	Single Peripheral Driver
MAX892LEUA+	MAXIM	获取价格	暂无描述
MAX892LEUA+T	MAXIM	获取价格	Switching Regulator, Current-mode, PDSO8, 1.11 MM HEIGHT, ULTRA SMALL, UMAX-8
MAX892LEUA-T	MAXIM	获取价格	Single Peripheral Driver
MAX893	MAXIM	获取价格	1.2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown

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