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UC2826DW PDF预览

UC2826DW

更新时间: 2024-02-05 14:23:02
品牌 Logo 应用领域
其他 - ETC 开关控制器
页数 文件大小 规格书
11页 542K
描述
Current-Mode SMPS Controller

UC2826DW 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:PLASTIC, LCC-28Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.92Is Samacsys:N
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:20 V
最小输入电压:10 V标称输入电压:12 V
JESD-30 代码:S-PQCC-J28长度:11.505 mm
功能数量:1端子数量:28
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:0.25 A封装主体材料:PLASTIC/EPOXY
封装代码:QCCJ封装等效代码:LDCC28,.5SQ
封装形状:SQUARE封装形式:CHIP CARRIER
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:4.57 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:1000 kHz技术:BIPOLAR
温度等级:INDUSTRIAL端子形式:J BEND
端子节距:1.27 mm端子位置:QUAD
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:11.505 mm
Base Number Matches:1

UC2826DW 数据手册

 浏览型号UC2826DW的Datasheet PDF文件第2页浏览型号UC2826DW的Datasheet PDF文件第3页浏览型号UC2826DW的Datasheet PDF文件第4页浏览型号UC2826DW的Datasheet PDF文件第5页浏览型号UC2826DW的Datasheet PDF文件第6页浏览型号UC2826DW的Datasheet PDF文件第7页 
UC1826  
UC2826  
UC3826  
Secondary Side Average Current Mode Controller  
FEATURES  
DESCRIPTION  
The UC1826 family of average current mode controllers accurately  
accomplishes secondary side average current mode control. The sec-  
ondary side output voltage is regulated by sensing the output voltage  
and differentially sensing the AC switching current. The sensed output  
voltage drives a voltage error amplifier.The AC switching current, mon-  
itored by a current sense resistor, drives a high bandwidth, low offset  
current error amplifier. The output of the voltage error amplifier can be  
used to drive the current amplifier which filters the measured inductor  
current. Fast transient response is accomplished by utilizing voltage  
feedforward in generating the PWM ramp.  
Practical Secondary Side Control of  
Isolated Power Supplies  
1MHz Operation  
Tailored Loop Bandwidth Provides  
Excellent Noise Immunity  
Voltage Feedforward Provides  
Superior Transient Response  
Accurate Programmable Maximum  
Duty Cycle  
The UC1826 features load share, oscillator synchronization, undervolt-  
age lockout, and programmable output control. Multiple chip operation  
can be achieved by connecting up to ten UC1826 chips in parallel.The  
SHARE bus and CLKSYN bus provide load sharing and synchroniza-  
tion to the fastest oscillator respectively.With its tailored bandwidth, the  
UC1826 provides excellent noise immunity and is an ideal controller to  
achieve high power, secondary side average current mode control.  
Multiple Chips Can be Synchronized  
to Fastest Oscillator  
Wide Gain Bandwidth Product  
(70MHz, Acl>10) Current Error  
Amplifier  
Up to Ten Devices Can Easily Share  
a Common Load  
BLOCK DIAGRAM  
Pin Numbers refer to 24-pin packages.  
7/95  
UDG-95013  
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