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LTC4000 PDF预览

LTC4000

更新时间: 2024-09-21 14:57:59
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
40页 477K
描述
用于电池充电和电源管理的高电压、大电流控制器

LTC4000 数据手册

 浏览型号LTC4000的Datasheet PDF文件第2页浏览型号LTC4000的Datasheet PDF文件第3页浏览型号LTC4000的Datasheet PDF文件第4页浏览型号LTC4000的Datasheet PDF文件第5页浏览型号LTC4000的Datasheet PDF文件第6页浏览型号LTC4000的Datasheet PDF文件第7页 
LTC4000  
High Voltage High Current  
Controller for Battery Charging  
and Power Management  
DescripTion  
FeaTures  
TheLTC®4000isahighvoltage,highperformancecontroller  
that converts many externally compensated DC/DC power  
supplies into full-featured battery chargers.  
n
Complete High Performance Battery Charger When  
Paired with a DC/DC Converter  
n
n
Wide Input and Output Voltage Range: 3V to 60V  
Input Ideal Diode for Low Loss Reverse Blocking  
and Load Sharing  
Output Ideal Diode for Low Loss PowerPath™ and  
Load Sharing with the Battery  
FeaturesoftheLTC4000’sbatterychargerinclude:accurate  
( 0.ꢀ25% programmable float voltage, selectable timer or  
current termination, temperature qualified charging using  
anNTCthermistor,automaticrecharge,C/10tricklecharge  
for deeply discharged cells, bad battery detection and  
statusindicatoroutputs.Thebatterychargeralsoincludes  
precisioncurrentsensingthatallowslowersensevoltages  
for high current applications.  
n
n
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Instant-On Operation with Heavily Discharged  
Battery  
Programmable Input and Charge Current:  
1ꢀ Accuracy  
0.ꢁ2ꢀ Accurate Programmable Float Voltage  
Programmable C/X or Timer Based Charge  
Termination  
NTC Input for Temperature Qualified Charging  
ꢀ8-Lead 4mm × 2mm QFN or SSOP Packages  
n
n
The LTC4000 supports intelligent PowerPath control. An  
external PFET provides low loss reverse current protec-  
tion. Another external PFET provides low loss charging  
or discharging of the battery. This second PFET also  
facilitates an instant-on feature that provides immediate  
downstream system power even when connected to a  
heavily discharged or short faulted battery.  
n
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applicaTions  
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High Power Battery Charger Systems  
The LTC4000 is available in a low profile ꢀ8-lead 4mm ×  
2mm QFN and SSOP packages.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners.  
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High Performance Portable Instruments  
n
Industrial Battery Equipped Devices  
Notebook/Subnotebook Computers  
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Typical applicaTion  
48V to 10.8V at 10A Buck Converter Charger for Three LiFePO4 Cells  
Charge Current and VOUT Profile  
vs VBAT During a Charge Cycle  
Si7135DP  
LT3845A  
V
V
OUT  
12V, 15A  
IN  
OUT  
15V TO 60V  
SHDN  
12  
10  
8
11  
10.5  
10  
9.5  
9
C
5mΩ  
100µF  
47nF  
1.15M  
5mΩ  
I
CHARGE  
V
OUT  
14.7k  
ITH  
CC  
IID IGATE CSP  
RST  
CLN  
IN  
CSN  
V
OUT  
BGATE  
Si7135DP  
6
BAT  
OFB  
1µF  
1.10M  
4
127k  
VM  
LTC4000  
FBG  
100k  
3.0V  
ENC  
CHRG  
FLT  
2
8.5  
8
I
V
CHARGE  
7
BAT  
133k  
10.8V FLOAT  
10A MAX CHARGE  
CURRENT  
BFB  
NTC  
0
1.13M  
IIMON  
6
8
9
10  
11  
12  
10nF  
IBMON  
V
(V)  
BAT  
4000 TA01b  
10k  
10nF  
TMR  
CL  
CX  
GND BIAS  
3-CELL LiFePO  
BATTERY PACK  
4
10k  
24.9k  
22.1k  
0.1µF  
1µF  
4000 TA01a  
NTHS0603  
N02N1002J  
4000fb  
1
For more information www.linear.com/LTC4000  

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