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UC3846L-D08-T

更新时间： 2024-09-30 07:09:15
品牌 Logo 应用领域
友顺 - UTC 转换器控制器
页数 文件大小 规格书
10页 319K
描述
LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS

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中文翻译

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UC3846L-D08-T 技术参数

是否Rohs认证： 符合生命周期：Active
零件包装代码：DIP包装说明：LEAD FREE, DIP-8
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
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：21 V最小输入电压：8.2 V
标称输入电压：15 VJESD-30 代码：R-XDIP-T8
长度：9.2 mm功能数量：1
端子数量：8最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：UNSPECIFIED
封装代码：DIP封装等效代码：DIP8,.3
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：4.31 mm子类别：Switching Regulator or Controllers
表面贴装：NO切换器配置：SINGLE
最大切换频率：75 kHz温度等级：AUTOMOTIVE
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.62 mmBase Number Matches：1

UC3846L-D08-T 数据手册

 浏览型号UC3846L-D08-T的Datasheet PDF文件第2页浏览型号UC3846L-D08-T的Datasheet PDF文件第3页浏览型号UC3846L-D08-T的Datasheet PDF文件第4页浏览型号UC3846L-D08-T的Datasheet PDF文件第5页浏览型号UC3846L-D08-T的Datasheet PDF文件第6页浏览型号UC3846L-D08-T的Datasheet PDF文件第7页 
UNISONIC TECHNOLOGIES CO., LTD  
UC3846  
LINEAR INTEGRATED CIRCUIT  
LOW COST POWER-SAVING  
MODE PWM CONTROLLER  
FOR FLYBACK CONVERTERS  
„
DESCRIPTION  
The UTC UC3846 is a high performance current mode PWM  
controller ideally suited for low standby power and cost effective  
off-line flyback converter.  
DIP-8  
Low VDD startup current make the power reliable in startup  
design and a large value resistor could be used in the startup  
circuit to minimize the standby power. At no load condition, the  
IC operates in burst mode for lower standby power and in  
decreasing frequency for higher conversion efficiency at light  
load condition. The PWM switching frequency is programmable  
externally at normal operation.  
The UTC UC3846 contains protection coverage with  
automatic self-recovery including OCP (cycle-by-cycle current  
limiting), OTP (over temperature protection), UVLO (VDD over  
voltage clamp and under voltage lockout).To protect the power  
MOSFET, Gate-drive output is fixed up to 15V max.  
The internal slope compensation improves system stability at  
high PWM duty cycle output. Leading-edge blanking on current  
sense (CS) input removes the signal glitch that offers minimal  
reqnirement of external component and lower system cost.  
Excellent EMI performance is achieved by UTC proprietary  
frequency hopping technique together with soft driver control.  
Audio noise is eliminated because switch frequency is more  
than 20kHz during operation.  
„ FEATURES  
* UTC proprietary frequency hopping technology  
for Improved EMI  
* performance.  
* Power-saving mode for high light-load efficiency  
* Burst mode for minimum standby power  
* Dynamic peak current limiting for constant output  
power  
* Built-in synchronized slope compensation  
* OTP,OVP and VDD clamp for higher security  
* Programmable PWM Frequency  
* Gate output voltage clamped at 15V  
* Low start-up current  
The UTC UC3846 can be used in the applications, such as  
battery charger, power adaptor, set-top box power supplies, ink  
jet printers open-frame SMPS  
* Cycle-by-cycle Current Limiting  
* Under voltage lockout (UVLO)  
* Few external components required  
„
ORDERING INFORMATION  
Ordering Number  
Lead Free  
Package  
DIP-8  
Packing  
Tube  
Halogen Free  
UC3846G-D08-T  
UC3846L-D08-T  
UC3846L-D08-T  
(1) T: Tube  
(1)Packing Type  
(2)Package Type  
(3)Lead Free  
(2) D08: DIP-8  
(3) G: Halogen Free, L: Lead Free  
www.unisonic.com.tw  
Copyright © 2011 Unisonic Technologies Co., Ltd  
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QW-R103-053.B  
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中文翻译

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