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UCC2541 PDF预览

UCC2541

更新时间: 2024-11-08 08:26:03
品牌 Logo 应用领域
德州仪器 - TI 功效控制器
页数 文件大小 规格书
43页 681K
描述
HIGH-EFFICIENCY SYNCHRONOUS BUCK PWM CONTROLLER

UCC2541 数据手册

 浏览型号UCC2541的Datasheet PDF文件第2页浏览型号UCC2541的Datasheet PDF文件第3页浏览型号UCC2541的Datasheet PDF文件第4页浏览型号UCC2541的Datasheet PDF文件第5页浏览型号UCC2541的Datasheet PDF文件第6页浏览型号UCC2541的Datasheet PDF文件第7页 
SLUS621A − AUGUST 2004 − SEPTEMBER 2005  
ꢇꢈ ꢉ ꢇꢊꢋ ꢌꢌ ꢈ ꢁꢈꢋ ꢍꢁꢎ ꢏꢎ ꢍꢁꢇꢐꢑ ꢍꢑ ꢀꢏ ꢒꢀꢁ ꢓ  
ꢔꢕ ꢖ ꢁꢑ ꢍꢗ ꢐꢑ ꢘ ꢘꢋ ꢐ  
FEATURES  
APPLICATIONS  
D
On-Chip Predictive Gate Drivet for  
High-Efficiency Synchronous Buck  
Operation  
D
High Efficiency Non-Isolated Converters  
Requiring Advanced Features such as  
Pre-Bias Support and Tracking Capability  
D
D
Dual 3-A TrueDrivet Outputs  
D
D
Point-of-Load Modules for Servers, Telecom,  
and Data communication Equipments  
On-Board Programmable Oscillator with  
1-MHz Frequency Operation  
Good for Input Voltages of 3.3 V, 5.0 V,  
12.0 V, or Intermediate Bus Voltages  
D
TR Input for Sequencing Operation  
D
Overcurrent Protection using a Parallel  
Average Current Mode Control Loop  
DESCRIPTION  
The UCC2541 is a synchronous buck PWM  
controller for high current and low output voltage  
applications.  
D
D
D
D
D
D
3 Modes to Support 2.7-V to 35-V Input Bias  
Reverse Current Protection for Output Stage  
User Programmable Shutdown Using SS Pin  
1.0% Initial Tolerance Bandgap Reference  
High Bandwidth Error Amplifiers  
For higher efficiency, it incorporates the Predictive  
Gate Drivet technology that virtually eliminates  
body diode conduction losses in synchronous  
rectifiers.  
Thermally Enhanced HTSSOP 20-Pin  
PowerPADt Package and QFN−32 Pin  
D
Synchronization Input  
D
Supports Pre-Bias Applications  
SIMPLIFIED APPLICATION DIAGRAM  
UCC2541  
1
RSET  
20  
SWS  
VIN  
2
BST 19  
REF  
3
18  
17  
G2C  
G1  
4
SYNCIN  
RAMP  
SW  
5
VDD 16  
VOUT  
6
GND  
VEA−  
CEA−  
COMP  
TR  
15  
14  
13  
12  
11  
PGND  
G2  
7
8
VDRV  
G2S  
9
TR Input  
10  
SS  
Predictive Gate Drive, TrueDriveand PowerPADare trademarks of Texas Instruments Incorporated.  
ꢗꢦ  
Copyright 2004, Texas Instruments Incorporated  
ꢢ ꢦ ꢣ ꢢꢛ ꢜꢰ ꢞꢝ ꢡ ꢩꢩ ꢧꢡ ꢟ ꢡ ꢠ ꢦ ꢢ ꢦ ꢟ ꢣ ꢫ  
1
www.ti.com  

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