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參數(shù)資料
| 型號(hào)： | LX2206 |
| 廠商： | Microsemi Corporation |
| 英文描述： | Dual Level Lithium Ion Battery Charger |
| 中文描述： | 雙級(jí)鋰離子電池充電器 |
| 文件頁(yè)數(shù)： | 9/14頁(yè) |
| 文件大小： | 311K |
| 代理商： | LX2206 |
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LX2206
P
RODUCTION
D
ATA
S
HEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
Copyright
2005
Rev. 1.2, 2006-12-22
W
M
.
C
Dual Level Lithium Ion Battery Charger
TM
A P P L I C A T I O N N O T E
B
ATTERY
T
EMPERATURE
M
ONITOR
The LX2206 has an input to monitor the battery
temperature during battery charging; this method
assumes the battery pack contains a thermistor
expressly for this purpose. A typical Lithium ion battery
should only be charged from a range of 0
°
C to 60
°
C.
For this calculation, a Vishay NTHS0402N01N1003J
Thermistor was used. This thermistor is 327K
at 0
°
C,
100K
at 25
°
C and 24.9K
at 60
°
C. The thermistor
must be biased with a Thevenin voltage source and
series resistance to achieve the proper thresholds. A
fixed value resistor is added in series with the
thermistor to prevent it from becoming too low an
impedance at high temperatures and causing the TMP
input to default to off.
V
TH
R
TH
R
NTC
R
MIN
TMP
Using a value of R
MIN
that is equal to the thermistor
temperature at 60
°
C works well; therefore, for this
example, set the value of R
MIN
to 24.9K. This has the
effect of adding 24.9K to the thermistor resistance
values so it becomes 352K
at 0
°
C, 125K
at 25
°
C
and 49.8K
at 60
°
C.
The equations for R
TH
and V
TH
are:
(
(
) (
R
0.74
R
0.29
V
60C
T
0C
T
IN
×
×
=
=
K
R
0C
T
TH
=
×
Where R at temperature is the sum of the thermistor
plus R
MIN
.
)
)
0.99
K
R
R
0.74
0.29
V
60C
T
0C
T
TH
=
=
×
×
=
=
=
121K
R
1
0.74
=
=
To finish the design it is necessary to create the
Thevenin Voltage and resistance using a voltage
divider from the input pin (IN).
V
IN
R
1
R
NTC
R
MIN
TMP
R
2
The values of R1 and R2 can be calculated as:
R
1
122K
K
TH
R
=
=
14,800K
TH
R
1
R
TH
R
1
R
2
R
=
×
=
In this case, it is not necessary to use R2, because the
value is so large it is insignificant. In this case, R1 = R
TH.
A
P
P
L
I
C
A
T
I
O
N
S
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| LX2206ILD | Dual Level Lithium Ion Battery Charger |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LX2206 EVAL KIT | 制造商:Microsemi Corporation 功能描述:LINEAR - LITHIUM ION - Bulk |
| LX2206_07 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:TM Dual Level Lithium Ion Battery Charger |
| LX2206ILD | 制造商:Microsemi Corporation 功能描述:CHGR LI-ION 4.2V 10MLPD - Bulk |
| LX2206ILD-TR | 功能描述:IC CHARGER BATT DUAL LI-ON 10MLP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標(biāo)準(zhǔn)包裝:4,000 系列:- 功能:燃料，電量檢測(cè)計(jì)/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
| LX2207 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Three Level Lithium Ion Battery Charger |
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