5秒后页面跳转
UC2845B PDF预览

UC2845B

更新时间: 2024-05-23 22:21:29
品牌 Logo 应用领域
友台半导体 - UMW 控制器稳压器
页数 文件大小 规格书
9页 877K
描述
AC-DC控制器和稳压器

UC2845B 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:DIP
包装说明:PLASTIC, DIP-14针数:14
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.63
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:25 V最小输入电压:12 V
标称输入电压:15 VJESD-30 代码:R-PDIP-T14
JESD-609代码:e3功能数量:1
端子数量:14最高工作温度:85 °C
最低工作温度:-25 °C最大输出电流:1 A
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP14,.3封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:5.1 mm
子类别:Switching Regulator or Controllers表面贴装:NO
切换器配置:SINGLE最大切换频率:500 kHz
技术:BIPOLAR温度等级:OTHER
端子面层:Tin (Sn)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.62 mm
Base Number Matches:1

UC2845B 数据手册

 浏览型号UC2845B的Datasheet PDF文件第2页浏览型号UC2845B的Datasheet PDF文件第3页浏览型号UC2845B的Datasheet PDF文件第4页浏览型号UC2845B的Datasheet PDF文件第5页浏览型号UC2845B的Datasheet PDF文件第6页浏览型号UC2845B的Datasheet PDF文件第7页 
R
UMW  
UMW UC2842/43/44/45  
Description  
The 2842/43/44/45 are fixed frequency current mode PWM controller. They are specially designed for OFFLine and DC to  
DC converter applications with a minimal external components. Internally implemented circuits include a trimmed oscillator for preci-  
se duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high  
current totempole output ideally suited for driving a power MOSFET. Protection circuitry includes built undervoltage lockout and  
current limiting. The 2842 and 2844 have UVLO thresholds of 16V (on) and 10V (off). The corresponding thresholds for the  
2843/ 45 are 8.4V (on) and 7.6V (off). The 2842 and 2843 can operate within 100% duty cycle.  
The 2844 and 2845 can operate within 50% duty cycle.  
The 284X has Start-Up Current 0.5mA (typ).  
Pin Connection  
Features  
Low Start-Up and Operating Current  
High Current Totem Pole Output  
Undervoltage Lockout With Hysteresis  
Operating Frequency Up To 500KHz  
Top view  
Block diagram  
(toggle flip flop used only in 2844, 2845)  
Absolute Maximum Ratings  
Symbol  
Parameter  
Maximum  
Units  
VCC  
IO  
Supply Voltage (low impedance source)  
30  
±1  
V
A
Output Current  
VI  
ISINK (E.A)  
Po  
Input Voltage (Analog Inputs pins 2,3)  
Error Amp Output Sink Current  
Power Dissipation (TA=250C)  
Storage Temperature Range  
0.3 to 5.5  
V
mA  
W
10  
1
Tstg  
-65 to150  
260  
oC  
TL  
Lead Temperature (soldering 5 sec.)  
oC  
oC  
TA  
Operating Ambient Temperature  
-25 to +85  
www.umw-ic.com  
1
友台半导体有限公司  

与UC2845B相关器件

型号 品牌 获取价格 描述 数据表
UC2845BAC ONSEMI

获取价格

HIGH PERFORMANCE CURRENT MODE CONTROLLERS
UC2845BD ONSEMI

获取价格

HIGH PERFORMANCE CURRENT MODE CONTROLLERS
UC2845BD MOTOROLA

获取价格

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14, PLASTI
UC2845BD STMICROELECTRONICS

获取价格

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
UC2845BD1 STMICROELECTRONICS

获取价格

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
UC2845BD1 ONSEMI

获取价格

HIGH PERFORMANCE CURRENT MODE CONTROLLERS
UC2845BD1 MOTOROLA

获取价格

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8, PLASTIC
UC2845BD1013TR STMICROELECTRONICS

获取价格

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
UC2845BD1G ONSEMI

获取价格

High Performance Current Mode PWM Controller, SOIC-8 Narrow Body, 98-TUBE
UC2845BD1R2 ONSEMI

获取价格

HIGH PERFORMANCE CURRENT MODE CONTROLLERS