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UC2843BL-S08-R PDF预览

UC2843BL-S08-R

更新时间: 2024-10-03 18:39:47
品牌 Logo 应用领域
友顺 - UTC 开关光电二极管输出元件
页数 文件大小 规格书
8页 278K
描述
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, PDSO8, SOP-8

UC2843BL-S08-R 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:SOP, SOP8,.25Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.1其他特性:OUTPUT IS ADJUSTABLE FROM 0V TO 30V
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:25 V
最小输入电压:12 V标称输入电压:15 V
JESD-30 代码:R-PDSO-G8功能数量:1
端子数量:8最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:1 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE认证状态:Not Qualified
子类别:Switching Regulator or Controllers表面贴装:YES
最大切换频率:500 kHz温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUALBase Number Matches:1

UC2843BL-S08-R 数据手册

 浏览型号UC2843BL-S08-R的Datasheet PDF文件第2页浏览型号UC2843BL-S08-R的Datasheet PDF文件第3页浏览型号UC2843BL-S08-R的Datasheet PDF文件第4页浏览型号UC2843BL-S08-R的Datasheet PDF文件第5页浏览型号UC2843BL-S08-R的Datasheet PDF文件第6页浏览型号UC2843BL-S08-R的Datasheet PDF文件第7页 
UNISONIC TECHNOLOGIES CO., LTD  
UC2843B  
LINEAR INTEGRATED CIRCUIT  
HIGH-PERFORMANCE  
CURRENT-MODE PWM  
CONTROLLERS  
DESCRIPTION  
The UTC UC2843B provides off-line or DC-DC  
fixed-frequency current-mode control design with minimum  
external components. Internally-implemented circuits include an  
under-voltage lockout (UVLO) and a precision reference with  
accuracy at the error amplifier input. The UTC UC2843B also  
contain internal circuits which include a pulse width modulation  
(PWM) comparator providing current-limit control, logic ensuring  
latched operation, and a totem-pole output stage designed to  
source or sink high-peak current. The output stage is low when it  
is in off-state condition and suitable for N-channel MOSFETs  
driving.  
The UTC UC2843B also has following advantages: the  
start-up current lower than 0.5mA while the oscillator discharge  
current is specified to 8.3mA (Typ.). In UVLO conditions, the  
output has a maximum saturation voltage of 1.2V when sinking  
10mA@VCC = 5V.  
The typical UVLO threshold of the UTC UC2843B is 8.4V  
(on) and 7.6V (off) and can operate to duty cycles approximately  
100%.  
FEATURES  
* Current mode operation:500 kHz  
* Automatic feed-forward compensation  
* Low start-up current value<0.5mA  
* Latching PWM for cycle-by-cycle current limiting  
* Trimmed oscillator discharge current  
* Internally trimmed reference with UVLO  
* High-current totem-pole output UVLO with hysteresis  
* Double-pulse suppression  
ORDERING INFORMATION  
Ordering Number  
Lead Free  
Package  
Packing  
Halogen Free  
UC2843BL-S08-R  
UC2843BL-S08-T  
UC2843BL-D08-T  
UC2843BG-S08-R  
UC2843BG-S08-T  
UC2843BG-D08-T  
SOP-8  
SOP-8  
DIP-8  
Tape Reel  
Tube  
Tube  
www.unisonic.com.tw  
Copyright © 2013 Unisonic Technologies Co., Ltd  
1 of 8  
QW-R103-048.D  

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