TI公司，TI官网，TI代理商
TI(德州仪器)|TI产品型号搜索：
专营TI（德州仪器）元器件，强大的现货交付能力，解决您的采购难题
全流程提供TI（德州仪器）现货供应链服务
当前位置：TI代理 > > TI芯片 >> UC2851
UC2851技术文档下载：
UC2851技术文档产品手册下载
UC2851 - 产品图解：
TI芯片：
承诺原装正品
专营TI德州仪器，真正优化您的供应链
TI产品 - UC2851介绍

UC2851 - 可编程脱机 PWM 控制器

UC2851是TI德州仪器公司的一款PWM与谐振控制器产品，UC2851是可编程脱机 PWM 控制器，本站介绍了UC2851的封装应用图解、特点和优点、功能等，并给出了与UC2851相关的TI元器件型号供参考。

UC2851 - 可编程脱机 PWM 控制器 - PWM与谐振控制器 - 离线隔离型DC/DC控制器和转换器 - 德州仪器

产品描述

The UC1851 family of PWM controllers are optimized for off-line primary side control. These devices include a high current totem pole output stage and a toggle flip-flop for absolute 50% duty cycle limiting. In all other respects this line of controllers is pin for pin compatible with the UC1841 series. Inclusion of all major housekeeping functions in these high performance controllers makes them ideal for use in cost sensitive applications.

Important features of these controllers include low current start-up, linear feed-forward for constant volt-second operation, and compatibility with both voltage or current mode control. In addition, these devices include a programmable start threshold, as well as programmable over-voltage, under-voltage, and over current fault thresholds. The fault latch on these devices can be configured for automatic restart, or latched off response to a fault.

These devices are packaged in 18-pin plastic or ceramic dual-in-line packages, or for surface mount applications, a 20 Pin PLCC. The UC1851 is characterized for -55°C to +125°C operation while the UC2851 and UC3851 are designed for -40°C to +85°C and 0°C to +70°C, respectively.

产品特性

  • All Control, Driving, Monitoring, and Protection Functions Included
  • Low-Current Off Line Start Circuit
  • Voltage Feed Forward or Current Mode Control
  • High Current Totem Pole Output
  • 50% Absolute Max Duty Cycle
  • PWM Latch for Single Pulse Per Period
  • Pulse-by-Pulse Current Limiting plus Shutdown for Over-Current Fault
  • No Start-Up or Shutdown Transients
  • Slow Turn-On Both Initially and After Fault Shutdown
  • Shutdown Upon Over or Under Voltage Sensing
  • Latch Off or Continuous Retry After Fault
  • 1% Reference Accuracy
  • 500kHz Operation
  • 18 Pin DIL or 20 Pin PLCC Package

下面可能是您感兴趣的TI德州仪器公司PWM与谐振控制器元器件
节约时间成本，提高采购效率，TI官网授权代理
TI公司|TI德州仪器|德州仪器TI公司代理商|TI芯片代理商
TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货
寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购