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MAX713

更新时间: 2024-09-25 14:57:35
品牌 Logo 应用领域
亚德诺 - ADI 电池控制器
页数 文件大小 规格书
17页 242K
描述
NiCd/NiMH电池快速充电控制器

MAX713 数据手册

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EVALUATION KIT AVAILABLE  
MAX712/MAX713  
NiCd/NiMH Battery  
Fast-Charge Controllers  
General Description  
Features  
The MAX712/MAX713 fast-charge Nickel Metal Hydride  
(NiMH) and Nickel Cadmium (NiCd) batteries from a DC  
source at least 1.5V higher than the maximum battery  
voltage. 1 to 16 series cells can be charged at rates up  
to 4C. A voltage-slope detecting analog-to-digital convert-  
er, timer, and temperature window comparator determine  
charge completion. The MAX712/MAX713 are powered  
by the DC source via an on-board +5V shunt regulator.  
They draw a maximum of 5µA from the battery when not  
charging. A low-side current-sense resistor allows the  
battery charge current to be regulated while still  
supplying power to the battery’s load.  
o Fast-Charge NiMH or NiCd Batteries  
o Voltage Slope, Temperature, and Timer  
Fast-Charge Cutoff  
o Charge 1 to 16 Series Cells  
o Supply Battery’s Load While Charging  
(Linear Mode)  
o Fast Charge from C/4 to 4C Rate  
o C/16 Trickle-Charge Rate  
o Automatically Switch from Fast to Trickle Charge  
o Linear Mode Power Control  
o 5µA (max) Drain on Battery when Not Charging  
o 5V Shunt Regulator Powers External Logic  
The MAX712 terminates fast charge by detecting zero  
voltage slope, while the MAX713 uses a negative  
voltage-slope detection scheme. Both parts come in 16-  
pin DIP and SO packages. An external power PNP tran-  
sistor, blocking diode, three resistors, and three  
capacitors are the only required external components.  
Ordering Information  
PART  
TEMP RANGE  
0°C to +70°C  
PIN-PACKAGE  
16 Plastic DIP  
16 Narrow SO  
Dice*  
MAX712CPE  
MAX712CSE  
MAX712C/D  
MAX712EPE  
MAX712ESE  
MAX712MJE  
The evaluation kit is available: Order the MAX712EVKIT-  
DIP for quick evaluation of the linear charger.  
0°C to +70°C  
0°C to +70°C  
________________________Applications  
-40°C to +85°C  
-40°C to +85°C  
-55°C to +125°C  
16 Plastic DIP  
16 Narrow SO  
16 CERDIP**  
Battery-Powered Equipment  
Laptop, Notebook, and Palmtop Computers  
Handy-Terminals  
Ordering Information continued at end of data sheet.  
*Contact factory for dice specifications.  
**Contact factory for availability and processing to MIL-STD-883.  
Cellular Phones  
Portable Consumer Products  
Portable Stereos  
Cordless Phones  
Typical Operating Circuit  
Q1  
2N6109  
DC IN  
R2  
150Ω  
C4  
0.01μF  
R1  
Pin Configuration  
DRV  
THI  
V+  
D1  
1N4001  
WALL  
CUBE  
TOP VIEW  
REF  
V+  
VLIMIT  
BATT+  
PGM0  
PGM1  
THI  
1
2
3
4
5
6
7
8
16  
15  
14  
VLIMIT  
REF  
C1  
1μF  
BATT+  
DRV  
C3  
R3  
68kΩ  
MAX712  
MAX713  
10μF  
MAX712  
MAX713  
BATTERY  
13 GND  
12 BATT-  
11 CC  
TEMP  
LOAD  
R4  
22kΩ  
TLO  
10μF  
CC BATT- TLO GND  
10  
9
PGM3  
PGM2  
TEMP  
C2  
0.01μF  
FASTCHG  
R
SENSE  
DIP/SO  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-0100; Rev 7; 7/13  

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