Boost, Flyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 18-SOIC
DESCRIPON
The UC1841 family of PWM controllers has been designed to increase the level of versatility while retaining all of the performance features of the earlier UC1840 devices. While still optimized for highly-efficient boot strapped primary-side operation in forward or flyback power converters, the UC1841 is equally adept in implementing both low and high voltage input DC to DC converters. Important performance features include a low-current starting circuit, linear feed-forward for constant volt-second operation, and compatibility with either voltage or current mode topologies.
FEATURES
• All Control, Driving, Monitoring, and Protection Functions Included
• Low-current, Off-line Start Circuit
• Voltage Feed Forward or Current Mode Control
• Guaranteed Duty Cycle Clamp
• 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
• PWM Output Switch Usable to 1A Peak Current
• 1% Reference Accuracy
• 500kHz Operation
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
UC3841DWTR TI 德州仪器 | 当前型号 | 当前型号 |
UC3841DW 德州仪器 | 完全替代 | UC3841DWTR和UC3841DW的区别 |
UC2841DWG4 德州仪器 | 完全替代 | UC3841DWTR和UC2841DWG4的区别 |
UC2851DWG4 德州仪器 | 完全替代 | UC3841DWTR和UC2851DWG4的区别 |