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ISL78845ASEH

更新时间： 2024-12-01 14:57:27
品牌 Logo 应用领域
瑞萨 - RENESAS /
页数 文件大小 规格书
18页 949K
描述
Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Controller

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中文翻译

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ISL78845ASEH 数据手册

 浏览型号ISL78845ASEH的Datasheet PDF文件第2页浏览型号ISL78845ASEH的Datasheet PDF文件第3页浏览型号ISL78845ASEH的Datasheet PDF文件第4页浏览型号ISL78845ASEH的Datasheet PDF文件第5页浏览型号ISL78845ASEH的Datasheet PDF文件第6页浏览型号ISL78845ASEH的Datasheet PDF文件第7页 
DATASHEET  
ISL78840ASxH, ISL78841ASxH, ISL78843ASxH, ISL78845ASxH, ISL738840ASEH,  
ISL738841ASEH, ISL738843ASEH, ISL738845ASEH  
Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Controller  
The ISL78840ASEH, ISL78841ASEH, ISL78843ASEH,  
Features  
ISL78845ASEH, ISL78840ASRH, ISL78841ASRH,  
ISL78843ASRH, ISL78845ASRH, ISL738840ASEH,  
• Electrically screened to DLA SMD #5962-07249  
• QML qualified per MIL-PRF-38535 requirements  
• 1A MOSFET gate driver  
ISL738841ASEH, ISL738843ASEH, ISL738845ASEH are high  
performance, radiation hardened drop-in replacements for the  
popular 28C4x and 18C4x PWM controllers suitable for a wide  
range of power conversion applications including boost,  
flyback, and isolated output configurations. Fast signal  
propagation and output switching characteristics make these  
ideal products for existing and new designs.  
• 90µA typical start-up current, 125µA maximum  
• 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  
• Trimmed timing capacitor discharge current for accurate  
dead time/maximum duty cycle control  
Applications  
• Current mode switching power supplies  
• Isolated buck and flyback regulators  
• Boost regulators  
• 1.5MHz bandwidth error amplifier  
• Tight tolerance voltage reference over line, load, and  
temperature  
• ±3% current limit threshold  
• Direction and speed control in motors  
• Control of high current FET drivers  
• Pb-free available (RoHS compliant)  
• Radiation acceptance testing - ISL7884xASEH  
- HDR (50-300rad(Si)/s): 100krad(Si)  
- LDR (0.01rad(Si)/s): 50krad(Si)  
• Radiation acceptance testing - ISL7884xASRH  
- HDR (50-300rad(Si)/s): 100krad(Si)  
• Radiation acceptance testing - ISL73884xASEH  
- LDR (0.01rad(Si)/s): 50krad(Si)  
TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS  
RISING UVLO  
MAXIMUM DUTY CYCLE  
(%)  
PART NUMBER  
(V)  
7.0  
7.0  
8.4  
8.4  
7.0  
7.0  
8.4  
8.4  
ISL78840ASxH  
ISL78841ASxH  
ISL78843ASxH  
ISL78845ASxH  
ISL738840ASEH  
ISL738841ASEH  
ISL738843ASEH  
ISL738845ASEH  
100  
50  
100  
50  
100  
50  
100  
50  
FN7952 Rev.4.01  
May 5, 2022  
Page 1 of 17  
© 2012-2022 Renesas Electronics  
1234567...18

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