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UC2825AQDWREP PDF预览

UC2825AQDWREP

更新时间： 2024-11-04 12:47:15
品牌 Logo 应用领域
德州仪器 - TI 控制器
页数 文件大小 规格书
21页 603K
描述
HIGH-SPEED PWM CONTROLLER

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UC2825AQDWREP 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOP, SOP16,.4针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：0.73Samacsys Description：Enhanced Product High-Speed Pwm Controller
其他特性：ALSO OPERATES IN CURRENT MODE模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：20 V最小输入电压：8.8 V
标称输入电压：12 VJESD-30 代码：R-PDSO-G16
JESD-609代码：e4长度：10.3 mm
湿度敏感等级：1功能数量：1
端子数量：16最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：2.2 A
最大输出电压：5.15 V最小输出电压：5.05 V
标称输出电压：5.1 V封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP16,.4
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：2.65 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：1150 kHz技术：BIPOLAR
温度等级：AUTOMOTIVE端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.5 mm

UC2825AQDWREP 数据手册

 浏览型号UC2825AQDWREP的Datasheet PDF文件第2页浏览型号UC2825AQDWREP的Datasheet PDF文件第3页浏览型号UC2825AQDWREP的Datasheet PDF文件第4页浏览型号UC2825AQDWREP的Datasheet PDF文件第5页浏览型号UC2825AQDWREP的Datasheet PDF文件第6页浏览型号UC2825AQDWREP的Datasheet PDF文件第7页 
UC2825A-EP  
www.ti.com  
SGLS305D –JULY 2005–REVISED SEPTEMBER 2010  
HIGH-SPEED PWM CONTROLLER  
Check for Samples: UC2825A-EP  
1
FEATURES  
•
Improved Version of the UC2825 PWM  
SUPPORTS DEFENSE, AEROSPACE,  
AND MEDICAL APPLICATIONS  
•
Compatible With Voltage-Mode or  
Current-Mode Control Methods  
•
•
•
•
Controlled Baseline  
One Assembly/Test Site  
One Fabrication Site  
Available in Military (–55°C/125°C)  
Temperature Range(1)  
•
Practical Operation at Switching Frequencies  
to 1 MHz  
•
•
50-ns Propagation Delay to Output  
High-Current Dual Totem-Pole Outputs  
(2-A Peak)  
•
•
•
Extended Product Life Cycle  
Extended Product-Change Notification  
Product Traceability  
•
•
•
•
Trimmed Oscillator Discharge Current  
Low 100-mA Startup Current  
Pulse-by-Pulse Current-Limiting Comparator  
Latched Overcurrent Comparator With Full  
Cycle Restart  
(1) Additional temperature ranges are available - contact factory  
DESCRIPTION/ORDERING INFORMATION  
The UC2825A-EP pulse width modulation (PWM) controller is an improved version of the standard UC2825.  
Performance enhancements have been made to several of the circuit blocks. Error amplifier gain bandwidth  
product is 12 MHz, while input offset voltage is 2 mV. Current-limit threshold is specified to a tolerance of 5%.  
Oscillator discharge current is specified at 10 mA for accurate dead-time control. Frequency accuracy is  
improved to 6%. Startup supply current, typically 100 mA, is ideal for off-line applications. The output drivers are  
redesigned to actively sink current during undervoltage lockout (UVLO) at no expense to the startup current  
specification. In addition, each output is capable of 2-A peak currents during transitions.  
Functional improvements also have been implemented in this family. The UC2825A-EP shutdown comparator is  
now a high-speed overcurrent comparator with a threshold of 1.2 V. The overcurrent comparator sets a latch that  
ensures full discharge of the soft-start capacitor before allowing a restart. While the fault latch is set, the outputs  
are in the low state. In the event of continuous faults, the soft-start capacitor is fully charged before discharge to  
ensure that the fault frequency does not exceed the designed soft-start period. The UC2825 CLOCK pin is  
CLK/LEB in the UC2825A-EP. This pin combines the functions of clock output and leading-edge blanking  
adjustment and has been buffered for easier interfacing.  
The UC2825A-EP has dual alternating outputs and the same pin configuration as UC2825. UVLO thresholds are  
identical to the original UC2825.  
Consult the application report, The UC3823A,B and UC2825A,B Enhanced Generation of PWM Controllers,  
literature number SLUA125, for detailed technical and applications information.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2005–2010, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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UC2825AQDWREP 替代型号

型号 品牌 替代类型 描述 数据表
UC2825BDW TI

完全替代

 High Speed PWM Controller
UC2825ADW TI

完全替代

 High Speed PWM Controller
UC3825ADWTR TI

完全替代

 High Speed PWM Controller

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