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MAX1643C/D

更新时间: 2024-11-05 22:13:55
品牌 Logo 应用领域
美信 - MAXIM 转换器
页数 文件大小 规格书
12页 131K
描述
High-Efficiency, Step-Up DC-DC Converters for 1V Inputs

MAX1643C/D 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:DIE包装说明:DIE,
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.83其他特性:IT ALSO HAS CONTROL TECHNIQUE OF PFM, ALSO OPERATES IN ADJUSTABLE MODE FROM 2 TO 5.2V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
控制技术:PULSE FREQUENCY MODULATION最大输入电压:1.65 V
最小输入电压:0.7 V标称输入电压:1.3 V
JESD-30 代码:R-XUUC-N8JESD-609代码:e0
功能数量:1端子数量:8
最高工作温度:70 °C最低工作温度:
最大输出电流:1 A标称输出电压:3.3 V
封装主体材料:UNSPECIFIED封装代码:DIE
封装形状:RECTANGULAR封装形式:UNCASED CHIP
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
表面贴装:YES切换器配置:BOOST
温度等级:COMMERCIAL端子面层:TIN LEAD
端子形式:NO LEAD端子位置:UPPER
处于峰值回流温度下的最长时间:NOT SPECIFIEDBase Number Matches:1

MAX1643C/D 数据手册

 浏览型号MAX1643C/D的Datasheet PDF文件第2页浏览型号MAX1643C/D的Datasheet PDF文件第3页浏览型号MAX1643C/D的Datasheet PDF文件第4页浏览型号MAX1643C/D的Datasheet PDF文件第5页浏览型号MAX1643C/D的Datasheet PDF文件第6页浏览型号MAX1643C/D的Datasheet PDF文件第7页 
19-1183; Rev 0; 6/97  
Hig h -Effic ie n c y, S t e p -Up  
DC-DC Co n ve rt e rs fo r 1 V In p u t s  
2/MAX1643  
_______________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
Built-In Synchronous Rectifier  
The MAX1642/MAX1643 are high-efficiency, low-voltage,  
step-up DC-DC converters intended for devices pow-  
ered by a single alkaline cell. They feature low quies-  
cent supply currents and are supplied in the ultra-small  
µMAX package, which is only 1.1mm high. The guaran-  
teed start-up voltage is 0.88V.  
0.88V Guaranteed Start-Up  
Ultra-Small µMAX Package: 1.1mm High  
83% Efficiency  
Ea c h d e vic e c ons is ts of a n inte rna l 1, N-c ha nne l  
MOSFET power switch; a built-in synchronous rectifier  
that acts as the catch diode; an oscillator; a reference;  
and pulse-frequency-modulation (PFM) control circuitry.  
Both devices feature an independent undervoltage  
comparator (PFI/PFO). The MAX1642 also includes a  
2µA logic-controlled shutdown mode. The MAX1643  
offers a dedicated low-battery detector (BATTLO) in  
lieu of shutdown.  
4µA Quiescent Supply Current into BATT Pin  
2µA Logic-Controlled Shutdown (MAX1642)  
Two Undervoltage Detectors (MAX1643)  
2V to 5.2V Output Range  
20mA Output Current at 1.2V Input  
Reverse Battery Protection  
The output voltage for each device is preset to 3.3V  
±4%, or can be adjusted from +2V to +5.2V using only  
two resistors.  
______________Ord e rin g In fo rm a t io n  
PART  
TEMP. RANGE  
0°C to +70°C  
-40°C to +85°C  
0°C to +70°C  
-40°C to +85°C  
PIN-PACKAGE  
Dice*  
MAX1642C/D  
MAX1642EUA  
MAX1643C/D  
MAX1643EUA  
8 µMAX  
Dice*  
________________________Ap p lic a t io n s  
8 µMAX  
Pagers  
*Dice are tested at T = +25°C.  
A
Remote Controls  
Note: To order these devices shipped in tape and reel, add a -T  
to the part number.  
Pointing Devices  
Personal Medical Monitors  
Single-Cell Battery-Powered Devices  
_________________P in Co n fig u ra t io n s  
TOP VIEW  
1
2
3
4
8
7
6
5
OUT  
LX  
BATT  
PFI  
__________Typ ic a l Op e ra t in g Circ u it  
MAX1642  
µMAX  
GND  
FB  
PFO  
SHDN  
INPUT  
0.88V TO 1.65V  
OUTPUT  
3.3V  
100µH  
OUT  
LX  
22µF  
22µF  
MAX1642  
BATT  
1
2
3
4
8
7
6
5
OUT  
LX  
BATT  
PFI  
ON  
SHDN  
OFF  
MAX1643  
µMAX  
PFI  
GND  
PFO  
FB  
LOW-BATTERY  
DETECTOR INPUT  
LOW-BATTERY  
DETECTOR OUTPUT  
GND  
FB  
BATTLO  
PFO  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 408-737-7600 ext. 3468.  

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