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參數(shù)資料
| 型號： | MAX8808Z |
| 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)： | 10/13頁 |
| 文件大?。?/td> | 236K |
| 代理商： | MAX8808Z |
M
USB-Powered Li+ Charger
The universal serial bus (USB) provides a high-speed
serial communication port as well as power for the
remote device. The MAX8808X/MAX8808Y/MAX8808Z
can be configured to charge a battery at the highest
current possible from the host port.
Figure
5 shows the
MAX8808X as a USB battery charger. To make the cir-
cuit compatible with either 100mA or 500mA USB ports,
the circuit initializes at 100mA charging current. The μP
then enumerates the host to determine its current capa-
bility. If the host port is capable, the charging current is
increased to 425mA to avoid exceeding the 500mA
USB specification.
Layout and Bypassing
Place the input capacitor as close to the device as pos-
sible. Provide a large copper ground plane to allow the
exposed paddle to sink heat away from the device.
Connect the battery to BATT as close to the device as
possible to provide accurate battery voltage sensing.
Make all high-current traces short and wide to minimize
voltage drops. A sample layout is available in the
MAX8808 evaluation kit to speed designs.
1A Linear Li+ Battery Chargers with Integrated Pass
FET and Thermal Regulation in 2mm x 2mm TDFN
10
______________________________________________________________________________________
MAX8808XETA
IN
VBUS
GND
4.2V
Li+
C2
1
μ
F
C1
1
μ
F
USB PORT
ISET
EN
CHG
SYSTEM
VL
BATT
R2
13k
R4
100k
GND
C3
0.47
μ
F
N
V
I/O
V
I/O
ACOK
R3
100k
R1
4k
HIGH: 425mA, LOW: 100mA
D+
D-
Figure
5. USB Battery Charger
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| MAX8890EGCBFL | Analog IC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8808ZETA | 制造商:Maxim Integrated Products 功能描述:1A LINEAR LI+ BATT CHRGRS W. INTEG - Rail/Tube |
| MAX8808ZETA+ | 制造商:Maxim Integrated Products 功能描述:CHRGR LI-ION/LI-POL 1000MA 4.2V 8TDFN EP - Rail/Tube |
| MAX8808ZETA+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 |
| MAX8808ZETA-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 |
| MAX8809AETL+ | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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