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MAX1259

更新时间： 2024-11-28 14:57:27
品牌 Logo 应用领域
亚德诺 - ADI 电池
页数 文件大小 规格书
8页 997K
描述
电池管理器

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中文翻译

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MAX1259 数据手册

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MAX1259  
Battery Manager  
General Description  
Features  
● Switches to Backup Battery if Power Fails  
The MAX1259 battery manager provides backup-battery  
switching for CMOS RAM, microprocessors, or other low-  
power logic ICs. It automatically switches to the backup  
battery when the primary power supply is interrupted.  
Low-loss switches guarantee an input-to-output differ-  
ential of only 200mV while supplying 250mA from the  
primary power supply or 15mA from the battery.  
● Consumes Less than 100nA of Battery Current  
● Power-Fail Output Signals Primary Power-Supply  
Loss  
● Battery Monitor Indicates Low Battery  
● Battery Can Be Disconnected to Prevent Discharge  
During Shipping  
Battery discharge during shipping does not occur in the  
MAX1259, since the backup battery can be disconnected  
by strobing the RST input.  
● Battery Automatically Reconnected when V  
is  
CC  
Applied  
● Pin-Compatible with the DS1259  
A battery-fail output signal indicates when the backup bat-  
tery is below +2V, and a power-fail output signal indicates  
when the primary power supply is low. The MAX1259  
monitors the backup battery, warns of impending power  
failures, and switches the memory to the battery when  
failures occur. The MAX1259 is pincompatible with the  
DS1259, but consumes three times less supply current.  
Commercial, extended, and military temperature range  
devices are available.  
● Supply Current Three Times Lower than DS1259  
● Available in Extended-Industrial and Military  
Temperature Ranges  
Ordering Information  
PART  
TEMP RANGE  
0°C to +70°C  
PIN-PACKAGE  
Dice*  
MAX1259C/D  
MAX1259CPE  
MAX1259CWE  
MAX1259EPE  
MAX1259EWE  
MAX1259MJE  
0°C to +70°C  
16 PDIP  
0°C to +70°C  
16 Wide SO  
16 PDIP  
-40°C to +85°C  
-40°C to +85°C  
-55°C to +125°C  
Applications  
● Battery Backup for CMOS RAM  
● Uninterruptible Power Supplies  
● Computers  
16 Wide SO  
16 CERDIP  
*Contact factory for dice specifications.  
Note: Devices in PDIP and SO packages are available in both  
leadedPb) and lead(Pb)-free packaging. Specify lead-free by  
adding the “+” symbol at the end of the part number when  
ordering. Lead-free not available for CERDIP package.  
● Controllers  
Functional Diagram  
Pin Configuration  
V
V
CCI  
CCO  
TOP VIEW  
V
V
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
N.C.  
CCI  
V
BATT  
V
BATT  
CCI  
MAX1259  
RESET  
LOGIC  
RST  
BF  
N.C.  
V
N.C.  
BAT  
RST  
GND  
GND  
CCO  
PF  
V
CCO  
PF  
BF  
N.C.  
N.C.  
MAX1259  
REF  
BAT  
GND  
DIP/SO  
19-4638; Rev 3; 9/14  
12345678

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