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MAX1773EUP+T

更新时间： 2024-02-18 19:45:14
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理光电二极管
页数 文件大小 规格书
20页 397K
描述
Power Supply Support Circuit, Fixed, 3 Channel, BICMOS, PDSO20, 4.40 MM, TSSOP-20

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MAX1773EUP+T 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：TSSOP,针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.31
其他特性：IT CAN ALSO OPERATE FROM 4.75V 19V BATTERY SUPPLY可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G20
JESD-609代码：e3长度：6.5 mm
湿度敏感等级：1信道数量：3
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：TSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.1 mm最大供电电压 (Vsup)：28 V
最小供电电压 (Vsup)：4.75 V标称供电电压 (Vsup)：28 V
表面贴装：YES技术：BICMOS
温度等级：INDUSTRIAL端子面层：MATTE TIN
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4.4 mmBase Number Matches：1

MAX1773EUP+T 数据手册

 浏览型号MAX1773EUP+T的Datasheet PDF文件第2页浏览型号MAX1773EUP+T的Datasheet PDF文件第3页浏览型号MAX1773EUP+T的Datasheet PDF文件第4页浏览型号MAX1773EUP+T的Datasheet PDF文件第5页浏览型号MAX1773EUP+T的Datasheet PDF文件第6页浏览型号MAX1773EUP+T的Datasheet PDF文件第7页 
19-1796; Rev 1; 1/03  
Power Source Selector for  
Dual-Battery Systems  
General Description  
Features  
o Patented† 7-MOSFET Topology Offers Low-Cost  
The MAX1773/MAX1773A highly integrated ICs serve  
as the control logic for a system with multiple power  
sources. They directly drive external P-channel  
MOSFETs to select from an AC adapter and dual bat-  
tery sources for charge and discharge. The selection is  
made based on the presence of the power sources and  
the state of the batteries. The MAX1773/MAX1773A  
detect low battery conditions using integrated analog  
comparators and check for the presence of a battery  
by using battery thermistor outputs.  
Solution  
o Automatically Detects and Responds to:  
Low Battery Voltage Condition  
Battery Insertion and Removal  
AC Adapter Presence  
o Direct Drive of P-Channel MOSFETs  
o Simplifies Power Management µP Firmware  
The MAX1773/MAX1773A are designed for use with a  
buck topology charger. They provide a simple and easily  
controlled solution to a difficult analog power control prob-  
lem. The MAX1773/MAX1773A provide most of the power  
source monitoring and selection, freeing the system power  
management microprocessor (µP) for other tasks. This not  
only simplifies development of the power management  
firmware for the µP but also allows the µP to enter standby,  
thereby reducing system power consumption.  
o Extends Battery Life by Allowing Power  
Management µP to Enter Standby  
o 4.75V to 28V AC Adapter Input Voltage Range  
o Integrated LDO with 1mA Drive Capability  
o Small Footprint 20-Pin TSSOP Package  
Ordering Information  
The MAX1773A is recommended for new designs.  
PART  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
20 TSSOP  
MAX1773EUP  
MAX1773AEUP  
________________________Applications  
20 TSSOP  
Notebook and Subnotebook Computers  
PDAs and Handy-Terminals  
Internet Tablets  
Pin Configuration appears at end of data sheet.  
†Covered by U.S. Patent number 5,764,032.  
Dual-Battery Portable Equipment  
Typical Operating Circuit  
SYSTEM LOGIC SUPPLY  
FROM HOST µP  
BATSEL  
V
DD  
TO HOST µP  
ACPRES  
BATSTAT  
3.3V  
MINV  
AC ADAPTER  
INPUT  
ACDET  
PDS  
MAX1773  
MAX1773A  
3.3V  
TCOMP  
EXTLD  
THMA  
BATA  
BATTERY  
A
BATTERY  
B
THMB  
BATB  
COMA  
DISA  
COMB  
DISB  
CHGA  
CHGB  
STEP-DOWN  
CHARGER  
OUTPUT  
OUTPUT  
3.3V DC-DC  
CONVERTER  
INPUT  
INPUT  
SYSTEM LOAD  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...20

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