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ISL78840ASEH PDF预览

ISL78840ASEH

更新时间: 2024-01-04 14:26:49
品牌 Logo 应用领域
英特矽尔 - INTERSIL 控制器
页数 文件大小 规格书
15页 810K
描述
Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Controller

ISL78840ASEH 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:DIE, DIE OR CHIPReach Compliance Code:compliant
风险等级:5.68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:13.2 V最小输入电压:9 V
JESD-30 代码:S-XUUC-N23功能数量:1
端子数量:23最高工作温度:125 °C
最低工作温度:-55 °C最大输出电流:1 A
最大输出电压:2 V标称输出电压:1 V
封装主体材料:UNSPECIFIED封装代码:DIE
封装等效代码:DIE OR CHIP封装形状:SQUARE
封装形式:UNCASED CHIP最大供电电流 (Isup):4 mA
表面贴装:YES切换器配置:SINGLE
最大切换频率:1000 kHz技术:BICMOS
温度等级:MILITARY端子形式:NO LEAD
端子位置:UPPER总剂量:100k Rad(Si) V
Base Number Matches:1

ISL78840ASEH 数据手册

 浏览型号ISL78840ASEH的Datasheet PDF文件第2页浏览型号ISL78840ASEH的Datasheet PDF文件第3页浏览型号ISL78840ASEH的Datasheet PDF文件第4页浏览型号ISL78840ASEH的Datasheet PDF文件第5页浏览型号ISL78840ASEH的Datasheet PDF文件第6页浏览型号ISL78840ASEH的Datasheet PDF文件第7页 
Radiation Hardened, High Performance Industry  
Standard Single-Ended Current Mode PWM Controller  
ISL78840ASEH, ISL78841ASEH, ISL78843ASEH, ISL78845ASEH  
The ISL7884xASEH is a high performance, radiation hardened  
Features  
drop-in replacement for the popular 28C4x and 18C4x PWM  
controllers suitable for a wide range of power conversion  
applications including boost, flyback, and isolated output  
configurations. Its fast signal propagation and output  
• Electrically Screened to DLA SMD # 5962-07249  
• QML Qualified Per MIL-PRF-38535 Requirements  
switching characteristics make this an ideal product for  
existing and new designs.  
• 1A MOSFET Gate Driver  
• 90µA Typical Start-up Current, 125µA Max  
• 35ns Propagation Delay Current Sense to Output  
• Fast Transient Response with Peak Current Mode Control  
• 9V to 13.2V Operation  
Features include up to 13.2V operation, low operating current,  
90µA typical start-up current, adjustable operating frequency  
to 1MHz, and high peak current drive capability with 50ns rise  
and fall times.  
• Adjustable Switching Frequency to 1MHz  
• 50ns Rise and Fall Times with 1nF Output Load  
PART NUMBER  
ISL78840ASEH  
ISL78841ASEH  
ISL78843ASEH  
ISL78845ASEH  
RISING UVLO  
MAX. DUTY CYCLE  
7.0  
7.0  
100%  
50%  
• Trimmed Timing Capacitor Discharge Current for Accurate  
Deadtime/Maximum Duty Cycle Control  
8.4V  
8.4V  
100%  
50%  
• 1.5MHz Bandwidth Error Amplifier  
• Tight Tolerance Voltage Reference Over Line, Load and  
Temperature  
Specifications for Rad Hard QML devices are controlled by the  
Defense Logistics Agency Land and Maritime (DLA). The SMD  
numbers listed in the ordering information must be used when  
ordering.  
• ±3% Current Limit Threshold  
• Pb-Free Available (RoHS Compliant)  
• Radiation Environment:  
- High Dose Rate (50 - 300rad(Si)/s). . . . . . . . . 100 krad(Si)  
- Low Dose Rate (0.01rad(Si)/s). . . . . . . 100 krad(Si) (Note)  
Detailed Electrical Specifications for the ISL788xASEH are  
contained in SMD 5962-07249. A “hot-link” is provided on our  
website for downloading.  
NOTE: Product capability established by initial characterization. The  
“EH” version is acceptance tested on a wafer by wafer basis to 50  
krad(Si) at low dose rate.  
Applications  
• Current Mode Switching Power Supplies  
• Isolated Buck and Flyback Regulators  
• Boost Regulators  
• Direction and Speed Control in Motors  
• Control of High Current FET Drivers  
Pin Configurations  
ISL78840ASEH, ISL78841ASEH,  
ISL78843ASEH, ISL78845ASEH  
(8 LD FLATPACK)  
ISL78840ASEH, ISL78841ASEH,  
ISL78843ASEH, ISL78845ASEH  
(8 LD SBDIP)  
TOP VIEW  
TOP VIEW  
COMP  
FB  
1
2
3
4
8
7
6
5
V
V
REF  
COMP  
FB  
1
2
3
4
8
7
6
5
V
V
REF  
DD  
DD  
CS  
OUT  
GND  
CS  
OUT  
GND  
RTCT  
RTCT  
May 29, 2012  
FN7952.0  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2012. 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.  
1

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