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UC2875-EP PDF预览

UC2875-EP

更新时间： 2024-11-06 12:47:15
品牌 Logo 应用领域
德州仪器 - TI 控制器
页数 文件大小 规格书
18页 572K
描述
PHASE SHIFT RESONANT CONTROLLER

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中文翻译

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UC2875-EP 数据手册

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SGLS233A − FEBRUARY 2004 − REVISED DECEMBER 2008  
D
Controlled Baseline  
− One Assembly/Test Site, One Fabrication  
Site  
D
D
D
D
Low Startup Current −150 mA  
Outputs Active Low During UVLO  
Soft-Start Control  
D
D
D
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D
D
Extended Temperature Performance of  
−25°C to 110°C  
Enhanced Diminishing Manufacturing  
Sources (DMS) Support  
Latched Over-Current Comparator With Full  
Cycle Restart  
D
Trimmed Reference  
Enhanced Product Change Notification  
DW PACKAGE  
(TOP VIEW)  
†
Qualification Pedigree  
Zero to 100% Duty Cycle Control  
VREF  
E/AOUT  
EA−  
GND  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
RAMP  
Programmable Output Turn-On Delay  
2
SLOPE  
CLOCKSYNC  
FREQSET  
DELAYSET A−B  
GND  
3
Compatible with Voltage or Current Mode  
Topologies  
EA+  
4
CS+  
5
D
Practical Operation at Switching  
Frequencies to 1 MHz  
SOFTSTART  
6
GND  
GND  
7
D
D
D
Four 2 A Totem Pole Outputs  
10 MHz Error Amplifier  
Under-Voltage Lockout  
GND  
8
GND  
GND  
9
DELAYSET C−D  
NC  
NC  
10  
11  
†
OUTA  
Component qualification in accordance with JEDEC and industry  
standards to ensure reliable operation over an extended  
temperature range. This includes, but is not limited to, Highly  
Accelerated Stress Test (HAST) or biased 85/85, temperature  
cycle, autoclave or unbiased HAST, electromigration, bond  
intermetallic life, and mold compound life. Such qualification  
testing should not be viewed as justifying use of this component  
beyond specified performance and environmental limits.  
OUTD 12  
OUTC 13  
VC 14  
17 OUTB  
16 PWRGND  
15 VIN  
NC = No Connect  
description/ordering information  
The UC2875 integrated circuit implements control of a bridge power stage by phase-shifting the switching of  
one half-bridge with respect to the other, allowing constant frequency pulse-width modulation in combination  
with resonant, zero-voltage switching for high efficiency performance at high frequencies. This circuit may be  
configured to provide control in either voltage or current mode operation, with a separate over-current shutdown  
for fast fault protection.  
A programmable time delay is provided to insert a dead-time at the turn-on of each output stage. This delay,  
providing time to allow the resonant switching action, is independently controllable for each output pair (A−B,  
C−D).  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
‡
T
A
PACKAGE  
−25°C to 110°C  
SOP − DW Tape and reel  
UC2875SDWREP  
UC2875SEP  
‡
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.  
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Copyright 2004 − 2008 Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...18

中文翻译

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