UC1823 高速 PWM 控制器

The UC1823 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, 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 the output. An under-voltage lockout section with 800mV of hysteresis assures low start up current

UC1823
Topology Boost, Buck, Flyback, Forward    
Control Method Current    
Duty Cycle (Max) (%) 100    
Frequency (Max) (kHz) 1000    
UVLO Thresholds On/Off (V) 9.2/8.4    
Pin/Package 16CDIP, 20LCCC    
Vin (Min) (V) 8.4    
Vin (Max) (V) 30    
Vout (Min) (V)  
Regulated Outputs (#) 1    
Operating Temperature Range (C) -55 to 125    
Rating Military    
UC1823 特性
UC1823 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
5962-89905012A ACTIVE -55 to 125 29.37 | 100u LCCC (FK) | 20 1 | TUBE  
5962-8990501EA ACTIVE -55 to 125 17.64 | 100u CDIP (J) | 16 1 | TUBE  
UC1823J ACTIVE -55 to 125 13.84 | 100u CDIP (J) | 16 1 | TUBE  
UC1823J883B ACTIVE -55 to 125 17.64 | 100u CDIP (J) | 16 1 | TUBE  
UC1823L ACTIVE -55 to 125 20.04 | 100u LCCC (FK) | 20 1 | TUBE  
UC1823L883B ACTIVE -55 to 125 29.37 | 100u LCCC (FK) | 20 1 | TUBE  
UC1823 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
5962-89905012A TBD   Call TI   Call TI 5962-89905012A 5962-89905012A
5962-8990501EA TBD   Call TI   Call TI 5962-8990501EA 5962-8990501EA
UC1823J TBD   A42   N/A for Pkg Type UC1823J UC1823J
UC1823J883B TBD   A42   N/A for Pkg Type UC1823J883B UC1823J883B
UC1823L TBD   POST-PLATE   N/A for Pkg Type UC1823L UC1823L
UC1823L883B TBD   POST-PLATE   N/A for Pkg Type UC1823L883B UC1823L883B
UC1823 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
UC1823 应用技术支持与电子电路设计开发资源下载
  1. UC1823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
  3. Current Doubler Rectifier Offers Ripple Current Cancellation
  4. DN-43 Simple Techniques to Generate a Negative Voltage Bias Supply
  5. DN-56A, Single Switch Flyback Circuit Converts + 5 V to +/- 12 V for RS-232/422
  6. DN-65 Considerations in Powering BiCMOS ICs
  7. DN-48 Versatile Low Power SEPIC Converter Accepts Wide Input Voltage Range
  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
  10. DN-54 Innovative Buck Regulator Uses High Side N-Channel Switch Without Complex
  11. DN-46 Highly Efficient Low Power DC to DC Inverter Converts +5V Input to -3V Out