參數(shù)資料
型號(hào): AS3517
廠商: ams
文件頁(yè)數(shù): 35/94頁(yè)
文件大?。?/td> 0K
描述: IC CODEC AFE AUDIO STER 81-CTBGA
標(biāo)準(zhǔn)包裝: 250
類型: 音頻編解碼器
應(yīng)用: 便攜式音頻,電話
安裝類型: 表面貼裝
封裝/外殼: 81-TFBGA
供應(yīng)商設(shè)備封裝: 81-CTBGA(9x9)
包裝: 托盤
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(guān)PDF資料
PDF描述
CXS3102A14S6S CONN RCPT 6POS PNL MNT SKT
MS27473E16A26P CONN PLUG 26POS STRAIGHT W/PINS
VE-26Z-MX CONVERTER MOD DC/DC 2V 30W
MS27497E8A35PD CONN RCPT 6POS WALL MNT W/PINS
AD7705BRU IC ADC 16BIT 2CH 16-TSSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AS3517-T 功能描述:IC CODEC AFE AUDIO STER 81-CTBGA RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)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(yīng)商設(shè)備封裝:64-LQFP EP(10x10) 包裝:Digi-Reel® 其它名稱:497-11050-6
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(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)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(yīng)商設(shè)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(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)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(yīng)商設(shè)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(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)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(yīng)商設(shè)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(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)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(yīng)商設(shè)備封裝:64-LQFP EP(10x10) 包裝:Digi-Reel® 其它名稱:497-11050-6