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UC3845G-S08-R PDF预览

UC3845G-S08-R

更新时间: 2024-11-04 07:09:15
品牌 Logo 应用领域
友顺 - UTC 控制器
页数 文件大小 规格书
7页 293K
描述
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS

UC3845G-S08-R 数据手册

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UNISONIC TECHNOLOGIES CO., LTD  
UC3844/45  
LINEAR INTEGRATED CIRCUIT  
HIGH PERFORMANCE  
CURRENT MODE PWM  
CONTROLLERS  
„
DESCRIPTION  
The UTC UC3844/3845 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 UC3844 and UC3845 are the maximum  
duty cycle ranges and under-voltage lockout thresholds. The  
UC3844 ideally suited to off-line applications with UVLO thresholds  
of 16V(ON) and 10V(OFF), and UC3845 has UVLO thresholds of  
8.5V(ON) and 7.6V(OFF) for lower voltage applications.  
„
FEATURES  
* Operation output switching frequency up to 500 kHz  
* Output deadtime adjustable from 50% to 70%  
* 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  
UC3844L-D08-T  
UC3844L-S08-R  
UC3844L-S08-T  
UC3845L-D08-T  
UC3845L-S08-R  
UC3845L-S08-T  
UC3844G-D08-T  
UC3844G-S08-R  
UC3844G-S08-T  
UC3845G-D08-T  
UC3845G-S08-R  
UC3845G-S08-T  
DIP-8  
SOP-8  
SOP-8  
DIP-8  
Tube  
Tape Reel  
Tube  
Tube  
SOP-8  
SOP-8  
Tape Reel  
Tube  
www.unisonic.com.tw  
Copyright © 2011 Unisonic Technologies Co., Ltd  
1 of 7  
QW-R103-010.D  

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