參數(shù)資料
型號(hào)： AAT3689IWP-4.2-T1
廠商： Advanced Analog Technology,lnc.
英文描述： 0.5A/1.0A USB Port/Adapter Lithium-Ion/Polymer Battery Charger
中文描述： 0.5A/1.0A USB接口/適配器鋰離子電池充電器
文件頁數(shù)： 16/20頁
文件大?。?/td> 420K
代理商： AAT3689IWP-4.2-T1
AAT3689
0.5A/1.0A USB Port/Adapter
Lithium-Ion/Polymer Battery Charger
16
3689.2006.11.1.0
Table 3: Status LED Display Conditions.
Event Description
STAT1
STAT2
Charge Disabled or Low Supply
Charge Enabled Without Battery
Battery Charging
Charge Completed
Fault
Off
Off
Flash
1
On
Off
On
Flash
1
Off
On
On
1. Flashing rate depends on output capacitance.
Capacitor Selection
Input Capacitor
In general, it is good design practice to place a
decoupling capacitor between the ADP and USB
pins and ground. An input capacitor in the range of
1
μ
F to 22
μ
F is recommended. If the source supply
is unregulated, it may be necessary to increase the
capacitance to keep the input voltage above the
under-voltage lockout threshold during device
enable and when battery charging is initiated.
If the AAT3689 adapter input is to be used in a sys-
tem with an external power supply source, such as
a typical AC-to-DC wall adapter, then a C
IN
capaci-
tor in the range of 10
μ
F should be used. A larger
input capacitor in this application will minimize
switching or power bounce effects when the power
supply is "hot plugged." Likewise, a 10
μ
F or greater
input capacitor is recommended for the USB input
to help buffer the effects of USB source power
switching, noise, and input cable impedance.
Output Capacitor
The AAT3689 only requires a 1
μ
F ceramic capaci-
tor on the BAT pin to maintain circuit stability. This
value should be increased to 10
μ
F or more if the
battery connection is made any distance from the
charger output. If the AAT3689 is to be used in
applications where the battery can be removed
from the charger, such as in the case of desktop
charging cradles, an output capacitor greater than
10
μ
F may be required to prevent the device from
cycling on and off when no battery is present.
Printed Circuit Board Layout
Considerations
For the best results, it is recommended to physical-
ly place the battery pack as close to the AAT3689
BAT pin as possible. To minimize voltage drops on
the PCB, keep the high current carrying traces ade-
quately wide. For maximum power dissipation of
the AAT3689 TDFN package, the metal substrate
should be solder bonded to the board. It is also rec-
ommended to maximize the substrate contact to the
PCB ground plane layer to further increase local
heat dissipation.
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AAT3690IWP-4.2-T1 制造商:Advanced Analogic Tech 功能描述:AAT3690 Series 4 - 5.5 V 1A USB Port/Adapter Lithium-Ion/Polymer Battery Charger 制造商:SKYWORKS SOLUTIONS 功能描述:AAT3690 Series 4 - 5.5 V 1A USB Port/Adapter Lithium-Ion/Polymer Battery Charger 制造商:Skyworks Solutions Inc 功能描述:POWER MANAGEMENT IC
AAT3691IRN-4.2-T1 制造商:SKYWORKS SOLUTIONS 功能描述:AAT3691 Series 1.6 A 28 V Dual Input 1.6 A Linear Charger - TDFN-16
AAT3692IRN-4.2-T1 功能描述:電池管理 2 Input 1.6A Linear Chrg w/28V OVP 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
aat3693idh-aa-db1 制造商:Skyworks Solutions Inc 功能描述:AAT3693 Series 1.6 A Lithium-Ion/Polymer Battery Charger Eval Board
AAT3693IDH-AA-T1 功能描述:電池管理 Lithium-Ion/Polymer Batt Charger 1.6A 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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