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ISL9440IRZ PDF预览

ISL9440IRZ

更新时间： 2024-01-08 09:49:47
品牌 Logo 应用领域
英特矽尔 - INTERSIL 开关
页数 文件大小 规格书
20页 985K
描述
Triple, 180° Out-of-Phase, Step-Down

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ISL9440IRZ 技术参数

生命周期：Unknown零件包装代码：QFN
包装说明：HVQCCN, LCC32,.2SQ,20针数：32
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：20 weeks
风险等级：5.19模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5.6 V最小输入电压：4.5 V
标称输入电压：5 VJESD-30 代码：S-PQCC-N32
JESD-609代码：e3长度：5 mm
湿度敏感等级：3功能数量：3
端子数量：32最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC32,.2SQ,20
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：340 kHz温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn) - annealed端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：30宽度：5 mm
Base Number Matches：1

ISL9440IRZ 数据手册

 浏览型号ISL9440IRZ的Datasheet PDF文件第2页浏览型号ISL9440IRZ的Datasheet PDF文件第3页浏览型号ISL9440IRZ的Datasheet PDF文件第4页浏览型号ISL9440IRZ的Datasheet PDF文件第5页浏览型号ISL9440IRZ的Datasheet PDF文件第6页浏览型号ISL9440IRZ的Datasheet PDF文件第7页 
ISL9440, ISL9440A, ISL9441  
®
Data Sheet  
December 5, 2007  
FN6383.1  
Triple, 180° Out-of-Phase, Step-Down  
PWM and Single Linear Controller  
Features  
• Three Integrated Synchronous Buck PWM Controllers  
- Internal Bootstrap Diodes  
The ISL9440, ISL9440A and ISL9441 are quad-output  
synchronous buck controllers that integrate 3 PWM  
- Internal Compensation  
controllers and 1 low drop-out linear regulator controller, which  
are full featured and designed to provide multi-rail power for  
use in products such as cable and satellite set-top boxes,  
VoIP gateways, cable modems, and other home connectivity  
products as well as a variety of industrial and general purpose  
applications. Each output is adjustable down to 0.8V. The  
PWMs are synchronized at 180° out of phase thus reducing  
the RMS input current and ripple voltage.  
- Internal Soft-Start  
• Independent Control for Each Regulator and  
Programmable Output Voltages; Independent  
Enable/Shutdown  
• Fixed Switching Frequency: 300kHz (ISL9440, ISL9441);  
600kHz (ISL9440A)  
• Adaptive Shoot Through Protection on all Synchronous  
Buck Controllers  
The ISL9440, ISL9440A and ISL9441 offer internal soft-start,  
independent enable inputs for ease of supply rail  
sequencing, and integrated UV/OV/OC/OT protections in a  
space conscious 5mmx5mm QFN package. The ISL9440  
and ISL9440A offer an early warning function to output a  
logic signal to warn the system to back up data when input  
voltage falls below a certain level.  
• Independently Programmable Voltage Outputs  
• Out-of-Phase Switching to Reduce Input Capacitance  
(0°/180°/0°)  
• No External Current Sense Resistor  
- Uses Lower MOSFET’s rDS(ON)  
• Current Mode Controller with Voltage Feed Forward  
The ISL9440, ISL9440A and ISL9441 utilize internal loop  
compensation to keep minimum peripheral components for  
compact design and a low total solution cost. These devices  
are implemented with current mode control with feed forward  
to cover various applications even with fixed internal  
compensations.  
• Complete Protection  
- Overcurrent, Overvoltage, Undervoltage Lockout,  
Over-Temperature  
• Cycle by Cycle Current Limiting  
• Wide Input Voltage Range  
The table below shows the difference in terms of ISL9440,  
ISL9440A and ISL9441 features.  
- Input Rail Powers VIN Pin: 5.6V to 24V  
- Input Rail Powers VCC_5V Pin (VIN tied to VCC_5V, for  
5V input applications): 4.5V to 5.6V  
PART  
NUMBER  
EARLY  
WARNING  
SWITCHING FREQUENCY  
(kHz)  
• Early Warning (ISL9440, ISL9440A) on Input Voltage  
Failure  
ISL9440  
YES  
YES  
NO  
300  
600  
300  
ISL9440A  
ISL9441  
• Integrated Reset Function (ISL9440, ISL9440A)  
• Pb-free (RoHS compliant)  
Applications  
• Satellite and Cable Set-Top Boxes  
• Cable Modems  
• VoX Gateway Devices  
• NAS/SAN Devices  
Related Literature  
• Technical Brief TB389 “PCB Land Pattern Design and  
Surface Mount Guidelines for QFN (MLFP) Packages”  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright Intersil Americas Inc. 2007. All Rights Reserved  
1
All other trademarks mentioned are the property of their respective owners.  
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