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UC2856Q PDF预览

UC2856Q

更新时间： 2024-02-26 19:30:28
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器信息通信管理
页数 文件大小 规格书
12页 261K
描述
IMPROVED CURRENT MODE PWM CONTROLLER

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中文翻译

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UC2856Q 技术参数

生命周期：Obsolete零件包装代码：QLCC
包装说明：QCCJ,针数：20
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.72
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：40 V
最小输入电压：8 V标称输入电压：15 V
JESD-30 代码：S-PQCC-J20长度：8.965 mm
功能数量：1端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：1.5 A封装主体材料：PLASTIC/EPOXY
封装代码：QCCJ封装形状：SQUARE
封装形式：CHIP CARRIER认证状态：Not Qualified
座面最大高度：4.57 mm表面贴装：YES
切换器配置：PUSH-PULL最大切换频率：1000 kHz
技术：BICMOS温度等级：INDUSTRIAL
端子形式：J BEND端子节距：1.27 mm
端子位置：QUAD宽度：8.965 mm
Base Number Matches：1

UC2856Q 数据手册

 浏览型号UC2856Q的Datasheet PDF文件第2页浏览型号UC2856Q的Datasheet PDF文件第3页浏览型号UC2856Q的Datasheet PDF文件第4页浏览型号UC2856Q的Datasheet PDF文件第5页浏览型号UC2856Q的Datasheet PDF文件第6页浏览型号UC2856Q的Datasheet PDF文件第7页 
UC2856Q  
www.ti.com  
SGLS265–NOVEMBER 2004  
IMPROVED CURRENT MODE PWM CONTROLLER  
FEATURES  
DW PACKAGE  
•
Pin-for-Pin Compatible With the UC2846  
(TOP VIEW)  
•
65-ns Typical Delay From Shutdown to  
Outputs and 50-ns Typical Delay From  
Sync to Outputs  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
CL SS  
VREF  
CS−  
CS+  
EA+  
EA−  
COMP  
CT  
SHUTDOWN  
VIN  
BOUT  
VC  
•
•
•
Improved Current Sense Amplifier With  
Reduced Noise Sensitivity  
GND  
Differential Current Sense With 3-V  
Common Mode Range  
AOUT  
SYNC  
RT  
Trimmed Oscillator Discharge Current for  
Accurate Deadband Control  
P0008-01  
•
•
Accurate 1-V Shutdown Threshold  
High Current Dual Totem Pole  
Outputs (1.5-A peak)  
•
•
TTL Compatible Oscillator SYNC Pin  
Thresholds  
4-kV ESD Protection  
DESCRIPTION  
The UC2856 is a high performance version of the popular UC2846 series of current mode controllers, and is  
intended for both design upgrades and new applications where speed and accuracy are important. All input to  
output delays have been minimized, and the current sense output is slew rate limited to reduce noise sensitivity.  
Fast 1.5-A peak output stages have been added to allow rapid switching of power FETs.  
A low impedance TTL compatible sync output has been implemented with a 3-state function when used as a  
sync input.  
Internal chip grounding has been improved to minimize internal noise caused when driving large capacitive  
loads. This, in conjunction with the improved differential current sense amplifier, results in enhanced noise  
immunity.  
Other features include a trimmed oscillator current (8%) for accurate frequency and dead time control; a 1 V, 5%  
shutdown threshold; and 4 kV minimum ESD protection on all pins.  
ORDERING INFORMATION(1)  
TA  
PACKAGE  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
–40°C to 125°C  
SOP–DW Tape and reel  
UC2856QDWR  
UC2856Q  
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design  
guidelines are available at www.ti.com/sc/package.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2004, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...12

中文翻译

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UC2856Q 替代型号

型号 品牌 替代类型 描述 数据表
UC3856DWTRG4 TI

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