5秒后页面跳转
UC2851L PDF预览

UC2851L

更新时间: 2024-11-03 23:38:55
品牌 Logo 应用领域
其他 - ETC 模拟IC
页数 文件大小 规格书
7页 603K
描述
Analog IC

UC2851L 数据手册

 浏览型号UC2851L的Datasheet PDF文件第2页浏览型号UC2851L的Datasheet PDF文件第3页浏览型号UC2851L的Datasheet PDF文件第4页浏览型号UC2851L的Datasheet PDF文件第5页浏览型号UC2851L的Datasheet PDF文件第6页浏览型号UC2851L的Datasheet PDF文件第7页 
UC1851  
UC2851  
UC3851  
Programmable, Off-Line, PWM Controller  
FEATURES  
DESCRIPTION  
All Control, Driving, Monitoring, and Protection  
Functions Included  
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 con-  
trollers makes them ideal for use in cost sensitive applications.  
Low-Current Off Line Start Circuit  
Voltage Feed Forward or Current Mode Control  
High Current Totem Pole Output  
50% Absolute Max Duty Cycle  
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 thresh-  
old, 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.  
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  
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 op-  
eration while the UC2851 and UC3851 are designed for -40°C  
to +85°C and 0°C to +70°C, respectively.  
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  
BLOCK DIAGRAM  
10/94  
Powered by ICminer.com Electronic-Library Service CopyRight 2003  

与UC2851L相关器件

型号 品牌 获取价格 描述 数据表
UC2851N TI

获取价格

Programmable, Off-Line, PWM Controller
UC2851NG4 TI

获取价格

Programmable, Off-Line, PWM Controller
UC2851Q TI

获取价格

0.2A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PQCC20, PLASTIC, LCC-20
UC2852 TI

获取价格

High Power-Factor Preregulator
UC285-2 TI

获取价格

FAST TRANSIENT REPONSE 5-A LOW-DROPOUT REGULATOR
UC2852D TI

获取价格

High Power-Factor Preregulator
UC2852DG4 TI

获取价格

High Power-Factor Preregulator
UC2852DTR TI

获取价格

High Power-Factor Preregulator
UC2852DTRG4 TI

获取价格

High Power-Factor Preregulator
UC2852J ETC

获取价格

Power Factor Controller