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參數(shù)資料
| 型號(hào)： | LX2205 |
| 廠(chǎng)商： | Microsemi Corporation |
| 英文描述： | 1A Li-Ion Battery Charger with Power Source Management |
| 中文描述： | 1A條鋰離子電池充電器與電源管理 |
| 文件頁(yè)數(shù)： | 8/14頁(yè) |
| 文件大?。?/td> | 331K |
| 代理商： | LX2205 |
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LX2205
P
RODUCTION
D
ATA
S
HEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 8
Copyright
2007
Rev. 1.0a, 2007-03-02
W
M
.
C
1A Li-Ion Battery Charger with Power Source Management
TM
L
X
2
2
0
5
A P P L I C A T I O N C I R C U I T S
USB Power
100k
88.7k
49.9k
12.4k
LX2205
Wall Adapter
System Load
Li-Ion
SUSP
UCL
MDC
DC OK
TFB
BAT
USB
SYS
Suspend
High/Low
CCP
Adapter Present
GND
SHDN
Shutdown
CHG
DONE
CTP
CUS
CMP
Thermistor
9.09k
2.26k
2.4k
2.4k
0.1uF
10uF
10uF
10uF
10k
953k
Si5441BDC
1k
Figure 3 –
AC Adapter and USB Supply (Charge and Discharge Modes) with 1A charging and 100mA termination current.
In this application, the wall adapter voltage is not well regulated and can dip to less than 4.7V. For this case, a reverse
blocking MOSFET is used instead of the reverse blocking diode, shown in the Product Highlight. This extends the operating
range of the LX2205 because the drop across the MOSFET is minimal. It also increases efficiency by eliminating the power
loss of the schottky diode.
10k
8.87k
100k
1.24k
LX2205
System Load
Li-Ion
MDC
DC OK
TFB
BAT
SYS
CCP
GND
CHG
DONE
CTP
CUS
CMP
Thermistor
20k
2.26k
2.4k
2.4k
0.1uF
10uF
10uF
Q1
BSS84
USB Power
SUSP
UCL
USB
Suspend
High/Low
SHDN
Shutdown
10uF
95.3k
Figure 4 –
This application uses only a USB input with 500mA and 100mA maximum current limit levels and a 50mA
termination current level. MOSFET Q1 turns off the TFB resistor string when not in charge mode to prevent battery drain;
this is particularly helpful when using a small thermistor resistance value in the battery pack.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LX2205ILQ | 1A Li-Ion Battery Charger with Power Source Management |
| LX2206 | Dual Level Lithium Ion Battery Charger |
| LX2206ILD | Dual Level Lithium Ion Battery Charger |
| LX2207 | Three Level Lithium Ion Battery Charger |
| LX2207ILD | Three Level Lithium Ion Battery Charger |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LX2205 EVAL KIT | 制造商:Microsemi Corporation 功能描述:LINEAR - LITHIUM ION - Bulk |
| LX2205ILQ | 制造商:Microsemi Corporation 功能描述:LINEAR - LITHIUM ION - Bulk |
| LX2206 | 制造商:MICROSEMI 制造商全稱(chēng):Microsemi Corporation 功能描述:Dual Level Lithium Ion Battery Charger |
| 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(chēng):Microsemi Corporation 功能描述:TM Dual Level Lithium Ion Battery Charger |
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