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MAX1758

更新时间： 2024-11-16 14:58:23
品牌 Logo 应用领域
亚德诺 - ADI 电池开关
页数 文件大小 规格书
17页 267K
描述
独立的开关模式Li+电池充电器，内置28V开关

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中文翻译

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MAX1758 数据手册

 浏览型号MAX1758的Datasheet PDF文件第2页浏览型号MAX1758的Datasheet PDF文件第3页浏览型号MAX1758的Datasheet PDF文件第4页浏览型号MAX1758的Datasheet PDF文件第5页浏览型号MAX1758的Datasheet PDF文件第6页浏览型号MAX1758的Datasheet PDF文件第7页 
EVALUATION KIT AVAILABLE  
MAX1758  
Stand-Alone, Switch-Mode  
Li+ Battery Charger with Internal 28V Switch  
General Description  
Features  
The MAX1758 is a switch-mode lithium-ion (Li+) battery  
charger that charges one-to-four cells. It provides a reg-  
ulated charging current accurate to 10ꢀ and a regu-  
lated voltage with only a 0.8ꢀ total voltage error at the  
battery terminals. The internal high-side switch delivers  
a programmable current of up to 1.5A to charge the bat-  
tery. The built-in safety timer automatically terminates  
charging once the adjustable time limit has been  
reached.  
o Stand-Alone Charger for Up to 4 Li+ Batteries  
o ±±.8ꢀ Battery ꢁegꢂlation ꢃoltage Accꢂracy  
o Low-Dropoꢂt 98ꢀ Dꢂty Cycle  
o Safely Precharges Near-Dead Cells  
o Continꢂoꢂs ꢃoltage and Temperatꢂre Monitoring  
o ±.1µA Shꢂtdown Battery Cꢂrrent  
o Inpꢂt ꢃoltage Up to 28ꢃ  
The MAX1758 regulates the voltage set point and  
charging current using two loops that work together to  
transition smoothly between voltage and current regula-  
tion. An additional control loop monitors the total cur-  
rent drawn from the input source (charging + system),  
and automatically reduces battery-charging current,  
preventing overload of the input supply and allowing  
the use of a low-cost wall adapter.  
o Up to 1.5A Programmable Charge Cꢂrrent  
o Safety Timer Prevents Overcharging  
o Inpꢂt Cꢂrrent Limiting  
o Space-Saving 28-Pin SSOP  
o 3±±kHz PWM Oscillator ꢁedꢂces Noise  
The per-cell battery regulation voltage is set between  
4.0V and 4.4V using standard 1ꢀ resistors. The num-  
ber of cells is set from 1-to-4 by pin strapping. Battery  
temperature is monitored by an external thermistor to  
prevent charging outside the acceptable temperature  
range.  
Ordering Information  
PAꢁT  
TEMP. ꢁANGE  
PIN-PACKAGE  
MAX1758EAI  
-40°C to +85°C  
28 SSOP  
The MAX1758 is available in a space-saving 28-pin  
SSOP package. Use the MAX1758EVKIT to help reduce  
design time. For a stand-alone charger with a 14V  
switch, refer to the MAX1757 data sheet. For a charger  
controller capable of up to 4A charging current, refer to  
the MAX1737 data sheet.  
Typical Operating Circuit  
V
IN  
6V TO 28V  
DCIN  
CSSP  
CSSN  
SYSTEM  
LOAD  
REF  
HSD  
LX  
________________________Applications  
MAX1758  
Li+ Battery Packs  
Hand-Held Instruments  
ISETOUT  
BST  
VL  
Notebook Computers  
Desktop Cradle Chargers  
Pin Configuration  
ISETIN  
CELL  
PGND  
CS  
TOP VIEW  
VL  
ISETIN  
ISETOUT  
THM  
1
2
3
4
5
6
7
8
9
28 DCIN  
27 CSSP  
26 CSSN  
25 CCV  
24 CCI  
VADJ  
BATT  
THM  
CCS  
CCI  
REF  
Li+ BATTERY  
1 TO 4 CELLS  
MAX1758  
THERM  
GND  
23 CCS  
VADJ  
BATT  
22 BST  
21 CS  
HSD  
20 LX  
CCV  
FASTCHG  
FULLCHG  
FAULT  
HSD 10  
CELL 11  
19 LX  
TIMER1  
TIMER2  
SHDN  
18 PGND  
17 SHDN  
16 FULLCHG  
15 FASTCHG  
TIMER1 12  
TIMER2 13  
FAULT 14  
ON  
OFF  
GND  
SSOP  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-1752; Rev 1; 1/01  
1234567...17

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