參數(shù)資料
型號: AS3517-T
廠商: ams
文件頁數(shù): 35/94頁
文件大?。?/td> 0K
描述: IC CODEC AFE AUDIO STER 81-CTBGA
標準包裝: 2,000
類型: 音頻編解碼器
應用: 便攜式音頻,電話
安裝類型: 表面貼裝
封裝/外殼: 81-TFBGA
供應商設備封裝: 81-CTBGA(9x9)
包裝: 帶卷 (TR)
AS3517 V17
Data Sheet, Confidential
2003-2007, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.
www.austriamicrosystems.com
9.2.3
Charger
General
This block can be used to charge a 4V Li-Io accumulator. It supports constant current and constant voltage charging modes with
adjustable charging currents (50 to 400mA) and maximum charging voltage (3.9 to 4.25V).
Figure 24 Charger States
Trickle Charge
If BVDD is below 3V in systems where the battery is not separated from BVDD, the charger goes automatically in trickle charge mode with
50mA charging current and 3.9V endpoint voltage. In this mode charging current and voltage are not precise, but provide a charger
function also for deep discharged batteries. The temperature supervision is not enabled in trickle charge mode.
As soon as BVDD reaches 3V the AFE switches on and starts-up the regulators with the power-up sequence selected by pins VPRG1 and
VPRG2. Afterwards the CPU can set the modes and the charging currents via the 2-wire serial interface.
If the battery (CHGOUT) voltage is below 2.9V the charging current cannot be set higher than 50mA, also when using a battery separation
circuit to supply the AFE (BVDD) from USB or another voltage source.
Temperature Supervision
This charger block also features a 15uA supply for an external 100k NTC resistor to measure the battery temperature while charging. If
the temperature is too high (>45°C), an interrupt can be generated. If the battery temperature drops below 42°C the charger will start
charging again. The temperature supervision is not enabled in trickle charge mode.
If the NTC resistor does not have 100k its value can be corrected with a resistor in series or in parallel.
Revision 1v3
39
- 93
ams
AG
Technical
content
still
valid
相關PDF資料
PDF描述
AS3543-ECTP IC CODEC AUDIO FRONT END 68CTBGA
ASM2I9940LG-32LT IC CLK BUFFER 2:18 250MHZ 32LQFP
ASM3P2780AF-06OR IC FREQ MOD 4X EMI REDUCT 6TSOP
AT42QT1011-MAH IC SENSR TOUCH/PROX 1CH 8-UDFN
AT42QT2161-MMU IC TOUCH SENSOR 16KEY 28QFN
相關代理商/技術參數(shù)
參數(shù)描述
AS3518 功能描述:IC CODEC AFE AUDIO STER 64-CABGA RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP(10x10) 包裝:Digi-Reel® 其它名稱:497-11050-6
AS3518-ECTP 功能描述:IC CODEC AFE AUDIO STER 64-CABGA RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP(10x10) 包裝:Digi-Reel® 其它名稱:497-11050-6
AS3518-ECTS 功能描述:IC AUDIO FRONT END STER 64CTBGA RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP(10x10) 包裝:Digi-Reel® 其它名稱:497-11050-6
AS3518-T 功能描述:IC CODEC AFE AUDIO STER 64-CABGA RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP(10x10) 包裝:Digi-Reel® 其它名稱:497-11050-6
AS351R040 制造商:AMETHERM 制造商全稱:AMETHERM Circuit Protection Thermistors 功能描述:Resistance @ 25°c