UC2825M 高速 PWM 控制器

The UC1825 family of PWM control ICs is optimized for high frequency switched mode power supply applications. Particular care was given to minimizing propagation delays through the comparators and logic circuitry while maximizing bandwidth and slew rate of the error amplifier. This controller is designed for use in either current-mode or voltage mode systems with the capability for input voltage feed-forward.

Protection circuitry includes a current limit comparator with a 1V threshold, a TTL compatible shutdown port, and a soft start pin which will double as a maximum duty cycle clamp. The logic is fully latched to provide jitter free operation and prohibit multiple pulses at an output. An under-voltage lockout section with 800mV of hysteresis assures low start up current

UC2825M
Control Method Current    
Duty Cycle (Max) (%) 50    
Frequency (Max) (kHz) 1000    
UVLO Thresholds On/Off (V) 9.2/8.4    
Pin/Package 16CDIP    
Vin (Min) (V) 8.4    
Vin (Max) (V) 30    
Regulated Outputs (#) 2    
Operating Temperature Range (C) -40 to 85    
Rating Military
UC2825M 特性
UC2825M 芯片订购指南
器件 状态 温度 (oC) 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
UC2825J ACTIVE -40 to 85 7.80 | 100u CDIP (J) | 16 1 | TUBE  
UC2825M 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
UC2825J TBD   A42   N/A for Pkg Type UC2825J UC2825J
UC2825M 工具与软件
培训内容 型号 软件/工具类型
最常用开关模式电源的功率级设计器 POWERSTAGE-DESIGNER 分析软件
UC2825M 应用技术支持与电子电路设计开发资源下载
  1. UC2825M数据资料 dataSheet 下载.PDF
  2. TI 德州仪器电源管理选型与价格参考 . xls
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  8. U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's
  9. U-111, Practical Considerations in Current Mode Power Supplies
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