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UCC25701

更新时间： 2024-09-18 22:41:47
品牌 Logo 应用领域
德州仪器 - TI 脉冲
页数 文件大小 规格书
10页 165K
描述
Advanced Voltage Mode Pulse Width Modulator

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中文翻译

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UCC25701 数据手册

 浏览型号UCC25701的Datasheet PDF文件第2页浏览型号UCC25701的Datasheet PDF文件第3页浏览型号UCC25701的Datasheet PDF文件第4页浏览型号UCC25701的Datasheet PDF文件第5页浏览型号UCC25701的Datasheet PDF文件第6页浏览型号UCC25701的Datasheet PDF文件第7页 
application  
INFO  
UCC15701/2  
UCC25701/2  
UCC35701/2  
available  
Advanced Voltage Mode Pulse Width Modulator  
FEATURES  
DESCRIPTION  
• 700kHz Operation  
The UCC35701/UCC35702 family of pulse width modulators is intended for  
isolated switching power supplies using primary side control. They can be  
used for both off-line applications and DC/DC converter designs such as in  
a distributed power system architecture or as a telecom power source.  
• Integrated Oscillator/ Voltage Feed  
Forward Compensation  
• Accurate Duty Cycle Limit  
• Accurate Volt-second Clamp  
• Optocoupler Interface  
The devices feature low startup current, allowing for efficient off-line start-  
ing, yet have sufficient output drive to switch power MOSFETs in excess of  
500kHz.  
Voltage feed forward compensation is operational over a 5:1 input range  
and provides fast and accurate response to input voltage changes over a  
4:1 range. An accurate volt-second clamp and maximum duty cycle limit  
are also featured.  
• Fault Counting Shutdown  
• Fault Latch off or Automatic Shutdown  
• Soft Stop Optimized for Synchronous  
Rectification  
Fault protection is provided by pulse by pulse current limiting as well as the  
ability to latch off after a programmable number of repetitive faults has oc-  
curred.  
• 1A Peak Gate Drive Output  
• 130µA Start-up Current  
• 750µA Operating Current  
Two UVLO options are offered. UCC35701 family has turn-on and turn-off  
thresholds of 13V/9V and UCC35702 family has thresholds of 9.6V/8.8V.  
The UCC35701/2 and the UCC25701/2 are offered in the 14 pin SOIC (D),  
14 pin PDIP (N) or in 14 pin TSSOP (PW) packages. The UCC15701/2 is  
offered in the 14 pin CDIP (J) package.  
TYPICAL APPLICATION DIAGRAM  
V
SUPPLY  
IN  
R1  
R6  
R2  
R7  
VFF  
6
VDD  
3
R3  
7
RT  
VREF  
UCC35701  
CT  
CS  
V
C6  
OUT  
10 CT  
C4  
C1  
R4  
9
VSCLAMP  
R8  
C2  
OUT  
ILIM  
4
2
R5  
11 SYNC  
14 SS  
R10  
CF  
RCS  
1
COUNT  
C3  
R
F
12 VREF  
PGND  
GND  
5
V RETURN  
IN  
R8  
RGND  
8
FB  
13  
R11  
V
OUT  
C5  
R13  
C7  
R12  
C6  
R14  
R15  
UDG-98005-1  
SLUS293A - JANUARY 2000  
1234567...10

中文翻译

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UCC25701 替代型号

型号 品牌 替代类型 描述 数据表
UCC2570 TI

功能相似

 Low Power Pulse Width Modulator
UCC35701 TI

功能相似

 Advanced Voltage Mode Pulse Width Modulator
UCC15701 TI

功能相似

 Advanced Voltage Mode Pulse Width Modulator

与UCC25701相关器件

型号 品牌 获取价格 描述 数据表
UCC25701D TI

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 		Advanced Voltage Mode Pulse Width Modulator
UCC25701DG4 TI

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 		Advanced Voltage Mode Pulse Width Modulator
UCC25701DTR TI

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 		Advanced Voltage Mode Pulse Width Modulator
UCC25701DTRG4 TI

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 		Advanced Voltage Mode Pulse Width Modulator
UCC25701N TI

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 		Advanced Voltage Mode Pulse Width Modulator
UCC25701NG4 TI

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 		Advanced Voltage Mode Pulse Width Modulator
UCC25701PW TI

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 		Advanced Voltage Mode Pulse Width Modulator
UCC25701PWG4 TI

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 		Advanced Voltage Mode Pulse Width Modulator
UCC25701PWTR TI

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 		Advanced Voltage Mode Pulse Width Modulator
UCC25701PWTRG4 TI

获取价格

 		Advanced Voltage Mode Pulse Width Modulator

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