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參數(shù)資料
| 型號： | MAX8808Y |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 1A Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN |
| 中文描述： | 第1A線性鋰電池充電器采用2mm x 2mm TDFN封裝與集成調(diào)整FET和熱調(diào)節(jié) |
| 文件頁數(shù)： | 9/13頁 |
| 文件大?。?/td> | 236K |
| 代理商： | MAX8808Y |
DC Input Sources
The MAX8808X/MAX8808Y/MAX8808Z operate from
well-regulated DC sources. The full charging input volt-
age range is 4.25V to 7V. The device can withstand up
to 15V on the input without damage to the IC. If V
IN
is
greater than 7V, the internal overvoltage-protection cir-
cuitry disables charging until the input falls below 7V.
An appropriate power supply must provide at least
4.25V at the desired peak charging current. It also must
stay below 6.5V when unloaded.
Application Circuits
Stand-Alone Li+ Charger
The MAX8808X/MAX8808Y/MAX8808Z provide a com-
plete Li+ charging solution.
Figure
3 shows a stand-
alone Li+ battery charger. The 2.8k
resistor
connected to ISET sets a charging current of 465mA.
The LED connected to the
CHG
output indicates when
either fast-charge or precharge qualification has
begun. When the battery is full,
CHG
turns high imped-
ance and the LED turns off.
Microprocessor-Interfaced Charger
Figure
4 shows the MAX8808X as a μP co-operated Li+
battery charger. The MAX8808X begins charging the bat-
tery when
EN
is low. The μP can drive
EN
high to disable
the charger. The MAX8808X generates a
ACOK
signal to
indicate the presence of an input supply.
CHG
is used to
detect the charge status of the battery. By monitoring
V
ISET
, the system can measure the charging current.
M
1A Linear Li+ Battery Chargers with Integrated Pass
FET and Thermal Regulation in 2mm x 2mm TDFN
_______________________________________________________________________________________
9
MAX8808X
(MAX8808Y)
MAX8808Z
IN
4.2V
Li+
R3
100k
AC-INPUT
PRESENT
INDICATOR
R2
510
C2
1
μ
F
C3
0.47
μ
F
C1
1
μ
F
4.25V TO 15V
V
I/O
ISET
VL
GND
EN (EN)
CHG
R1
2.8k
ENABLE
INPUT
BATT
ACOK
Figure
3. Stand-Alone Li+ Battery Charger
MAX8808XETA
IN
4.2V
Li+
C2
1
μ
F
C1
1
μ
F
AC/DC
ADAPTER
ISET
EN
CHG
SYSTEM
VL
BATT
R1
2.8k
GND
C3
0.47
μ
F
R4
100k
V
I/O
V
I/O
ACOK
R3
100k
R2
10k
CHARGE-CURRENT MONITOR
LOW: CHARGE, HIGH: FULL OR OFF
C4
0.1
μ
F
Figure
4. μP-Interfaced Li+ Battery Charger
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX8808Z | 1A Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN |
| MAX8808ZETA | Circular Connector; No. of Contacts:13; Series:TVS06; Body Material:Metal; Connecting Termination:Crimp; Connector Shell Size:11; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:11-35 |
| MAX8808XETA | 1A Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN |
| MAX881REVKIT | Evaluation Kit for the MAX881R |
| MAX8890EGCBFK | Analog IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8808YETA | 制造商:Maxim Integrated Products 功能描述:1A LINEAR LI+ BATT CHRGRS W. INTEG - Rail/Tube |
| MAX8808YETA+ | 制造商:Maxim Integrated Products 功能描述:CHRGR LI-ION/LI-POL 1000MA 4.2V 8TDFN EP - Rail/Tube |
| MAX8808YETA+T | 功能描述:電池管理 1A Linear Li+ Batt Chrgrs w. Integ Pass FET & Thermal Reg in 2mmx2mm TDFN RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX8808YETA-T | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX8808ZETA | 制造商:Maxim Integrated Products 功能描述:1A LINEAR LI+ BATT CHRGRS W. INTEG - Rail/Tube |
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