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UC1844    UC1845 PDF预览

UC1844 UC1845

更新时间: 2024-11-24 14:55:19
品牌 Logo 应用领域
友顺 - UTC /
页数 文件大小 规格书
7页 463K
描述
high performance current mode pwm controllers

UC1844 UC1845 数据手册

 浏览型号UC1844    UC1845的Datasheet PDF文件第2页浏览型号UC1844    UC1845的Datasheet PDF文件第3页浏览型号UC1844    UC1845的Datasheet PDF文件第4页浏览型号UC1844    UC1845的Datasheet PDF文件第5页浏览型号UC1844    UC1845的Datasheet PDF文件第6页浏览型号UC1844    UC1845的Datasheet PDF文件第7页 
UNISONIC TECHNOLOGIES CO., LTD  
UC1844/45  
LINEAR INTEGRATED CIRCUIT  
HIGH PERFORMANCE  
CURRENT MODE PWM  
CONTROLLERS  
DESCRIPTION  
The UTC UC1844/1845 are high performance fixed frequency  
current mode controllers that specifically designed for Off-Line and  
DC to DC converter applications with minimal external parts count.  
The differences between UC1844 and UC1845 are the  
under-voltage lockout thresholds. The UC1844 ideally suited to  
off-line applications with UVLO thresholds of 16V(ON) and 10V(OFF)  
,
and UC1845 has UVLO thresholds of 8.4V(ON) and 7.6V(OFF) for  
lower voltage applications.  
FEATURES  
* Operation output switching frequency up to 500 kHz  
* Automatic feed forward compensation  
* Latching PWM for cycle-by-cycle current limiting  
* High current totem pole output  
* Internally trimmed reference with under voltage lockout  
* UVLO with hysteresis  
* Low startup and operating current  
ORDERING INFORMATION  
Ordering Number  
Lead Free  
Package  
Packing  
Halogen Free  
UC1844G-D08-T  
UC1844G-S08-R  
UC1845G-D08-T  
UC1845G-S08-R  
UC1844L-D08-T  
DIP-8  
SOP-8  
DIP-8  
Tube  
Tape Reel  
Tube  
UC1844L-S08-R  
UC1845L-D08-T  
UC1845L-S08-R  
SOP-8  
Tape Reel  
www.unisonic.com.tw  
Copyright © 2022 Unisonic Technologies Co., Ltd  
1 of 7  
QW-R103-196.A  

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