MAX745EAP+T

更新时间： 2024-11-24 13:02:43

品牌	Logo	应用领域
美信 - MAXIM		电池开关
页数	文件大小	规格书
8页	93K
描述
暂无描述

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

MAX745EAP+T 数据手册

19-1182; Rev 2; 12/98

S w it c h -Mo d e Lit h iu m -Io n

Ba t t e ry-Ch a rg e r

MAX745

Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

The MAX745 p rovid e s a ll func tions ne c e s s a ry for

charging lithium-ion battery packs. It provides a regu-

lated charging current of up to 4A without getting hot,

and a regulated voltage with only ±0.75% total error at

the battery terminals. It uses low-cost, 1% resistors to

set the output voltage, and a low-cost N-channel MOS-

FET as the power switch.

♦ Charges 1 to 4 Lithium-Ion Battery Cells

♦ ±0.75% Voltage-Regulation Accuracy

Using 1% Resistors

♦ Provides up to 4A without Excessive Heating

♦ 90% Efficient

♦ Uses Low-Cost Set Resistors and

N-Channel Switch

The MAX745 regulates the voltage set point and charg-

ing current using two loops that work together to transi-

tion smoothly between voltage and current regulation.

The p e r-c e ll b a tte ry volta g e re g ula tion limit is s e t

between 4.0V and 4.4V using standard 1% resistors,

and then the number of cells is set from 1 to 4 by pin-

strapping. Total output voltage error is less than ±0.75%.

♦ Up to 24V Input

♦ Up to 18V Maximum Battery Voltage

♦ 300kHz PWM Operation: Low-Noise,

Small Components

♦ Stand-Alone Operation; No Microcontroller

Needed

For a similar device with an SMBus™ microcontroller

interface and the ability to charge NiCd and NiMH cells,

refer to the MAX1647 and MAX1648. For a low-cost

lithium-ion c ha rg e r us ing a line a r-re g ula tor c ontrol

scheme, refer to the MAX846A.

________________________Ap p lic a t io n s

Lithium-Ion Battery Packs

Desktop Cradle Chargers

Cellular Phones

Ord e rin g In fo rm a t io n

Notebook Computers

Hand-Held Instruments

PART

MAX745C/D

MAX745EAP

TEMP. RANGE

0°C to +70°C

PIN-PACKAGE

Dice*

-40°C to +85°C

20 SSOP

Pin Configuration appears on last page.

*Dice are tested at T = +25°C.

___________________________________________________Typ ic a l Op e ra t in g Circ u it

(UP TO 24V)

DCIN

BST

DHI

CELL

COUNT

SELECT

CELL0

CELL1

MAX745

OFF

THM/SHDN

REF

DLO

CHARGE

SETI

VADJ

SENSE

SET PER

CELL VOLTAGE

WITH 1% RESISTORS

STATUS

BATT

CCV CCI GND IBAT PGND

VOUT

1–4 Li+ CELLS

(UP TO 18V)

SMBus is a trademark of Intel Corp.

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

12 3 4 5 6 7 8

中文翻译

下载PDF

MAX745EAP+T 替代型号

型号	品牌	替代类型	描述	数据表
MAX745EAP+	MAXIM	类似代替	Power Supply Management Circuit, 1 Channel, PDSO20, SSOP-20
MAX745EAP-T	MAXIM	功能相似	Power Supply Management Circuit, 1 Channel, PDSO20, SSOP-20

与MAX745EAP+T相关器件

型号	品牌	获取价格	描述	数据表
MAX745EAP-T	MAXIM	获取价格	Power Supply Management Circuit, 1 Channel, PDSO20, SSOP-20
MAX745EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX745
MAX746	MAXIM	获取价格	High-Efficiency, PWM, Step-Down, N-Channel DC-DC Controller
MAX7461	MAXIM	获取价格	Loss-of-Sync Alarm
MAX7461EUK	MAXIM	获取价格	Loss-of-Sync Alarm
MAX7461EUK+	MAXIM	获取价格	Consumer Circuit, BICMOS, PDSO5, ROHS COMPLIANT, SOT-23, 5 PIN
MAX7461EUK+T	MAXIM	获取价格	Consumer Circuit, BICMOS, PDSO5,
MAX7461EUK+TC45	MAXIM	获取价格	Consumer Circuit, BICMOS, PDSO5, ROHS COMPLIANT, SOT23-5
MAX7461EUK-T	MAXIM	获取价格	Consumer Circuit, BICMOS, PDSO5, SOT-23, 5 PIN
MAX7462	MAXIM	获取价格	Single-Channel Video Reconstruction Filters and Buffers

与MAX745EAP+T相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

39
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

31
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

59
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

55

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX745EAP+T

MAX745EAP+T 数据手册

MAX745EAP+T 替代型号

与MAX745EAP+T相关器件

与MAX745EAP+T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

MAX745EAP+T

MAX745EAP+T 数据手册

MAX745EAP+T 替代型号

与MAX745EAP+T相关器件

与MAX745EAP+T相关文章

您还可以找

您在本页遇到什么问题？