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LTC4010 PDF预览

LTC4010

更新时间： 2023-12-20 18:45:22
品牌 Logo 应用领域
亚德诺 - ADI 电池
页数 文件大小 规格书
24页 285K
描述
高效独立型镍电池充电器

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中文翻译

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LTC4010 数据手册

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LTC4010  
High Efficiency Standalone  
Nickel Battery Charger  
FeaTures  
DescripTion  
The LTC®4010 provides a complete, cost-effective nickel  
battery fast charge solution in a small package using few  
external components. A 550kHz PWM current source  
controller and all necessary charge initiation, monitoring  
and termination control circuitry are included.  
n
Complete NiMH/NiCd Charger for 1 to 16 Cells  
n
No Microcontroller or Firmware Required  
n
550kHz PWM Current Source Controller  
n
No Audible Noise with Ceramic Capacitors  
n
Wide Input Voltage Range: 5.5V to 34V  
n
Programmable Charge Current: 5% Accuracy  
The LTC4010 automatically senses the presence of a DC  
adapterandbatteryinsertionorremoval.Whenanexternal  
DC source is not present, the LTC4010 enters shutdown  
and supply current drawn from an installed battery drops  
to the lowest possible level. Heavily discharged batteries  
are precharged with a trickle current. The LTC4010 can  
simultaneously use both –∆V and ∆T/∆t fast charge ter-  
mination techniques and can detect various battery faults.  
If necessary, a top-off charge is automatically applied to  
NiMH batteries after fast charging is completed. The IC  
will also resume charging if the battery self-discharges  
after a full charge cycle.  
n
Automatic Trickle Precharge  
–∆V Fast Charge Termination  
n
n
Optional ∆T/∆t Fast Charge Termination  
n
Optional Temperature Qualification  
n
Automatic NiMH Top-Off Charge  
n
Programmable Timer  
n
Automatic Recharge  
n
Multiple Status Outputs  
n
Micropower Shutdown  
n
16-Lead Thermally Enhanced TSSOP Package  
applicaTions  
All LTC4010 charging operations are qualified by actual  
charge time and maximum average cell voltage. Charging  
mayalsobegatedbyminimumandmaximumtemperature  
limits. NiMH or NiCd fast charge termination parameters  
are pin selectable.  
n
Integrated or Standalone Battery Charger  
n
Portable Instruments or Consumer Products  
n
Battery-Powered Diagnostics and Control  
Back-Up Battery Management  
n
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
Typical applicaTion  
2A NiMH Battery Charger  
TO  
SYSTEM  
LOAD  
FROM  
ADAPTER  
9V  
2A NiMH Charge Cycle at 1C  
10µF  
3k  
LTC4010  
1.60  
1.55  
42  
40  
V
CC  
FAULT  
CHRG  
READY  
TGATE  
1.50  
38  
BGATE  
47µH  
SINGLE CELL  
VOLTAGE  
TIMER PGND  
1.45  
1.40  
1.35  
1.30  
36  
34  
32  
30  
49.9k  
SENSE  
GND  
CHEM  
BATTERY  
TEMPERATURE  
0.05Ω  
BAT  
2A  
CHARGE  
10µF  
10k  
CURRRENT  
10k  
1A  
TOP OFF  
V
V
CDIV  
CELL  
2-CELL  
NiMH PACK  
1.25  
28  
33nF  
0
60  
TIME (MINUTES)  
80  
100  
20  
40  
WITH 10k NTC  
V
INTV  
TEMP  
DD  
4010 TA01b  
0.1µF  
68nF  
4010 TA01a  
4010fb  
ꢀ
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中文翻译

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