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ISL6251AHAZ-T7 PDF预览

ISL6251AHAZ-T7

更新时间： 2024-09-24 20:37:43
品牌 Logo 应用领域
瑞萨 - RENESAS /
页数 文件大小 规格书
20页 591K
描述
POWER SUPPLY SUPPORT CKT

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ISL6251AHAZ-T7 技术参数

是否Rohs认证： 符合生命周期：Transferred
包装说明：,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.69模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-609代码：e3湿度敏感等级：3
端子面层：Matte Tin (Sn) - annealedBase Number Matches：1

ISL6251AHAZ-T7 数据手册

 浏览型号ISL6251AHAZ-T7的Datasheet PDF文件第2页浏览型号ISL6251AHAZ-T7的Datasheet PDF文件第3页浏览型号ISL6251AHAZ-T7的Datasheet PDF文件第4页浏览型号ISL6251AHAZ-T7的Datasheet PDF文件第5页浏览型号ISL6251AHAZ-T7的Datasheet PDF文件第6页浏览型号ISL6251AHAZ-T7的Datasheet PDF文件第7页 
Low Cost Multi-Chemistry Battery Charger Controller  
ISL6251, ISL6251A  
Features  
The ISL6251, ISL6251A is a highly integrated battery charger  
controller for Li-Ion/Li-Ion polymer batteries and NiMH  
batteries. High efficiency is achieved by a synchronous buck  
topology and the use of a MOSFET, instead of a diode, for  
selecting power from the adapter or battery. The low side  
MOSFET emulates a diode at light loads to improve the light  
load efficiency and prevent system bus boosting.  
• ±0.5% Charge Voltage Accuracy (-10°C to +100°C)  
• ±3% Accurate Input Current Limit  
• ±3% Accurate Battery Charge Current Limit  
• ±25% Accurate Battery Trickle Charge Current Limit  
(ISL6251A)  
• Programmable Charge Current Limit, Adapter Current Limit  
and Charge Voltage  
The constant output voltage can be selected for 2, 3 and 4  
series Li-Ion cells with 0.5% accuracy over-temperature. It can  
be also programmed between 4.2V+5%/cell and 4.2V-5%/cell  
to optimize battery capacity. When supplying the load and  
battery charger simultaneously, the input current limit for the  
AC adapter is programmable to within 3% accuracy to avoid  
overloading the AC adapter, and to allow the system to make  
efficient use of available adapter power for charging. It also  
has a wide range of programmable charging current. The  
ISL6251, ISL6251A provides outputs that are used to monitor  
the current drawn from the AC adapter, and monitor for the  
presence of an AC adapter. The ISL6251, ISL6251A  
• Fixed 300kHz PWM Synchronous Buck Controller with Diode  
Emulation at Light Load  
• Output for Current Drawn from AC Adapter  
• AC Adapter Present Indicator  
• Fast Input Current Limit Response  
• Input Voltage Range 7V to 25V  
• Supports 2, 3 and 4 Cells Battery Pack  
• Up to 17.64V Battery-Voltage Set Point  
• Thermal Shutdown  
automatically transitions from regulating current mode to  
regulating voltage mode.  
• Support Pulse Charging  
• Less than 10µA Battery Leakage Current  
• Charge Any Battery Chemistry: Li-Ion, NiCd, NiMH, etc.  
• Pb-Free (RoHS Compliant)  
Ordering Information  
TEMP  
PART NUMBER  
(Notes 1, 2, 3)  
PART  
MARKING  
RANGE  
(°C)  
PACKAGE  
(Pb-Free)  
PKG.  
DWG. #  
Applications  
• Notebook, Desknote and Sub-notebook Computers  
ISL6251HRZ ISL 6251HRZ -10 to +100 28 Ld 5x5 QFN L28.5×5  
ISL6251HAZ ISL 6251HAZ -10 to +100 24 Ld QSOP M24.15  
ISL6251AHRZ ISL6251 AHRZ -10 to +100 28 Ld 5x5 QFN L28.5×5  
• Personal Digital Assistant  
ISL6251AHAZ ISL6251 AHAZ -10 to +100 24 Ld QSOP  
M24.15  
NOTES:  
1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on  
reel specifications.  
2. These Intersil Pb-free plastic packaged products employ special Pb-  
free material sets, molding compounds/die attach materials, and  
100% matte tin plate plus anneal (e3 termination finish, which is  
RoHS compliant and compatible with both SnPb and Pb-free  
soldering operations). Intersil Pb-free products are MSL classified at  
Pb-free peak reflow temperatures that meet or exceed the Pb-free  
requirements of IPC/JEDEC J STD-020.  
3. For Moisture Sensitivity Level (MSL), please see device information  
page for ISL6251, ISL6251A. For more information on MSL please  
see techbrief TB363.  
March 13, 2014  
FN9202.3  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC 2005-2006, 2014. All Rights Reserved  
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.  
All other trademarks mentioned are the property of their respective owners.  
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