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參數(shù)資料
| 型號(hào)： | AAT3680IKS-8.4-T1 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | Lithium-Ion Linear Battery Charge Controller |
| 中文描述： | 鋰離子線性電池充電控制器 |
| 文件頁(yè)數(shù)： | 14/18頁(yè) |
| 文件大?。?/td> | 265K |
| 代理商： | AAT3680IKS-8.4-T1 |
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AAT3680
Lithium-Ion Linear Battery Charge Controller
14
3680.2003.4.0.91
current rating must be for a given blocking diode.
The minimum power handling capacity must be cal-
culated based on the constant current amplitude
and the diode forward voltage (V
F
):
Where:
P
D(MIN)
= Minimum power rating for a diode selec-
tion
V
F
= Diode forward voltage
I
CC
= Constant current charge level for the system
P
D(MIN)
= V
F
/ I
CC
Schottky Diodes
The reason for selecting a Schottky diode for this
application is because Schottky diodes have a low
forward voltage drop. The forward voltage (V
F
) for
a Schottky diode is typically between 0.3V and
0.4V. A lower V
F
permits a lower voltage drop at
the constant current charge level set by the sys-
tem, less power will be dissipated in this element of
the circuit. Schottky diode allow for lower power
dissipation, smaller component package sizes and
greater circuit layout densities.
Rectifier Diodes
Any general purpose rectifier diode can be used
with the AAT3680 application circuit in place of a
higher cost Schottky type diode. The design trade-
off is a rectifier diode has a high forward voltage
drop. V
F
for a typical silicon rectifier diode is in the
range of 0.7V. A higher V
F
will place a input supply
voltage requirement for the battery charger sys-
tem. This will also require a higher power rated
diode since the voltage drop at the constant current
charge amplitude will be greater. Refer to the pre-
viously stated equations to calculate the minimum
V
IN
and diode P
D
for a given application.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT3681AIJS-4.1-5-T1 | 功能描述:電池管理 500mA USB Port/Adptr Li-Ion/Ply Batt Chgr 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 |
| AAT3681AIJS-4.1-T1 | 功能描述:電池管理 500mA USB Port/Adptr Li-Ion/Ply Batt Chgr 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 |
| AAT3681AIJS-4.2-1-T1 | 功能描述:IC BATT CHG LI-ION SC70JW-8 制造商:skyworks solutions inc. 系列:- 包裝:* 零件狀態(tài):上次購(gòu)買時(shí)間 電池化學(xué):鋰離子/聚合物 電池?cái)?shù):1 電流 - 充電:恒流 - 可編程 可編程特性:- 故障保護(hù):超溫，過(guò)壓，短路 充電電流 - 最大值:500mA 電池組電壓:4.2V 電壓 -?供電（最高）:7.5V 接口:USB 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:* 供應(yīng)商器件封裝:* 標(biāo)準(zhǔn)包裝:1 |
| AAT3681AIJS-4.2-2-T1 | 制造商:Skyworks Solutions Inc 功能描述:POWER MANAGEMENT IC |
| AAT3681AIJS-4.2-4-T1 | 功能描述:電池管理 500mA USB Port/Adptr Li-Ion/Ply Batt Chgr 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 |
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