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现在的智能手机均配备有专业的充电器,所谓的专充,一方面是性能品质经过该手机认证过,另一方面则是使用专充会以手机允许的最大电流进行充电,因为充电器内部有四个上下拉电阻,USB口通过检测由上下拉电阻设定的D+、D-值进行识别(称为握手协议,识别这台终端是自家人),比如说现在拿一台三星专配的5V1A充电器给Ipone5充电,因为充电器输出端的D+、D-和手机Ipone接入的D+、D-不匹配,那么它的最大充电电流就只有500~600mA(充电时间加长了),但用Ipone专充则会有960mA左右的充电电流。 GL888F USB识别快充芯片则是取代这上下拉电阻的作用,可用于5V输出带USB口的POWER上,如充电器、车充、移动电源、排插等USB输出端,SOT23-5封装,电路简单,基本上无需加格外器件即可实现USB接口识别任何现在手机、MP3、MP4、PAD(USB协议公开的)等,进行快速充电,大大节省充电时间(最大可节省60%的充电时间) 若有需要,请与我司联系,联系电话15889680523 廖生
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GL888F-20
USB Charging Port Controller
Datasheet
Revision 1.11
Aug. 02, 2013
Genesys Logic, Inc.
GL888F-20 Datasheet
© 2013 Genesys Logic, Inc. - All rights reserved. Page 2
GLI Confidential
Copyright
Copyright © 2013 Genesys Logic, Inc. All rights reserved. No part of the materials may be reproduced in any
form or by any means without prior written consent of Genesys Logic, Inc.
Ownership and Title
Genesys Logic, Inc. owns and retains of its right, title and interest in and to all materials provided herein.
Genesys Logic, Inc. reserves all rights, including, but not limited to, all patent rights, trademarks, copyrights
and any other propriety rights. No license is granted hereunder.
Disclaimer
All Materials are provided “as is”. Genesys Logic, Inc. makes no warranties, express, implied or otherwise,
regarding their accuracy, merchantability, fitness for any particular purpose, and non-infringement of
intellectual property. In no event shall Genesys Logic, Inc. be liable for any damages, including, without
limitation, any direct, indirect, consequential, or incidental damages. The materials may contain errors or
omissions. Genesys Logic, Inc. may make changes to the materials or to the products described herein at
anytime without notice.
Genesys Logic, Inc.
12F., No. 205, Sec. 3, Beixin Rd., Xindian Dist. 231,
New Taipei City, Taiwan
Tel: (886-2) 8913-1888
Fax: (886-2) 6629-6168
http://www.genesyslogic.com
GL888F-20 Datasheet
© 2013 Genesys Logic, Inc. - All rights reserved. Page 3
GLI Confidential
Revision History
Revision
Date
Description
1.00
07/05/2013
Formal release
1.10
07/10/2013
Update CH.6 Electrical Characteristics, p.11
1.11
08/02/2013
Update CH.6 Electrical Characteristics, p.11
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