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參數(shù)資料
| 型號： | AAT3688IWP-4.2-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | USB Port Lithium-Ion/Polymer Battery Charger |
| 中文描述： | USB接口鋰離子電池充電器 |
| 文件頁數(shù)： | 10/23頁 |
| 文件大?。?/td> | 522K |
| 代理商： | AAT3688IWP-4.2-T1 |
AAT3688
USB Port Lithium-Ion/Polymer Battery Charger
10
3688.2006.10.1.5
Functional Block Diagram
Charge
Control
Current
Compare
Reverse Blocking
CV/
Precharge
USB
USBSEL
USBH
USBL
Constant
Current
BAT
UVLO
Over-
Temperature
Protect
Charge
Status
STAT2
STAT1
TS
Window
Comparator
80μA
Serial
Data
DATA
GND
Charge
Reduction
Loop
CHR
EN
IC enable
Functional Description
The AAT3688 is a highly integrated single cell lithi-
um-ion/polymer battery charger IC designed to
operate from USB port V
BUS
supplies, while requir-
ing a minimum number of external components.
The device precisely regulates battery charge volt-
age and current for 4.2V lithium-ion/polymer bat-
tery cells.
The AAT3688 is specifically designed to be pow-
ered from a USB port V
BUS
supply, but it can also
be powered from any input voltage source capable
supplying 4.5V to 5.5V for loads up to 500mA.
Depending on the USB port type, the AAT3688
constant charge current can be externally pro-
grammed for two levels, USB high and USB low,
for maximum constant current charge levels up to
500mA. Typically, the USB charge levels are set at
500mA and 100mA for the USBH and USBL
modes; however, the user may program either
mode to any level they desire below 500mA. The
USBH/L mode has an automatic Charge Reduction
Loop control to allow users to charge the battery
with limited available current from a USB port while
maintaining the regulated port voltage. This sys-
tem assures the battery charge function will not
overload a USB port while charging if other system
demands also share power with the respective port
supply.
Status monitor output pins are provided to indicate
the battery charge status by directly driving two
external LEDs. A serial interface output is available
to report 14 various charge states to a system
microcontroller.
Battery temperature and charge state are fully
monitored for fault conditions. In the event of an
over-voltage or over-temperature failure, the
device will automatically shut down, thus protecting
the charging device, control system, and the bat-
tery under charge. In addition to internal charge
controller thermal protection, the AAT3688 also
provides a temperature sense feedback function
(TS pin) from the battery to shut down the device in
the event the battery exceeds its own thermal limit
during charging. All fault events are reported to the
user either by the simple status LEDs or via the
DATA pin function.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT3689 | 0.5A/1.0A USB Port/Adapter Lithium-Ion/Polymer Battery Charger |
| AAT3689IWP-4.2-T1 | 0.5A/1.0A USB Port/Adapter Lithium-Ion/Polymer Battery Charger |
| AAT3690 | 1.0A USB Port/Adapter Lithium-Ion/Polymer Battery Charger |
| AAT3690IWP-4.2-T1 | 1.0A USB Port/Adapter Lithium-Ion/Polymer Battery Charger |
| AAT3697 | 2A Lithium-Ion/Polymer Battery Charger |
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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