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UCC2805-Q1

更新时间： 2024-09-15 02:58:39
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
15页 368K
描述
Low-Power BiCMOS Current-Mode PWM Controllers

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中文翻译

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UCC2805-Q1 数据手册

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SGLS135E − SEPTEMBER 2002 − REVISED DECEMBER 2007  
D
Controlled Baseline  
− One Assembly  
− One Test Site  
D
D
D
D
Operation to 1 MHz  
Internal Soft Start  
Internal Fault Soft Start  
− One Fabrication Site  
Internal Leading-Edge Blanking of the  
Current Sense Signal  
D
D
D
D
D
Extended Temperature Performance of  
−55°C to 125°C  
Enhanced Diminishing Manufacturing  
Sources (DMS) Support  
D
1 Amp Totem-Pole Output  
D
70 ns Typical Response from  
Current-Sense to Gate Drive Output  
Enhanced Product Change Notification  
D
D
1.5% Tolerance Voltage Reference  
†
Qualification Pedigree  
Same Pinout as UC3842 and UC3842A  
ESD Protection Exceeds 200 V Using  
Machine Model (C = 200 pF, R = 0)  
D PACKAGE  
(TOP VIEW)  
D
100 µA Typical Starting Supply Current  
500 µA Typical Operating Supply Current  
D
COMP  
FB  
REF  
1
2
3
4
8
7
6
5
†
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.  
V
CC  
CS  
OUT  
GND  
RC  
description  
The UCC2800/1/2/3/4/5 family of high-speed, low-power integrated circuits contain all of the control and drive  
components required for off-line and dc-to-dc fixed frequency current-mode switching power supplies with  
minimal parts count.  
These devices have the same pin configuration as the UC2842/3/4/5 family and also offer the added features  
of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.  
The UCC2800/1/2/3/4/5 family offers choice of maximum duty cycle and critical voltage levels. Lower reference  
parts such as the UCC2803 and UCC2805 fit best into battery operated systems, while the higher reference  
and the higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line  
power supplies.  
PART NUMBER  
UCC2800  
UCC2801  
UCC2802  
UCC2803  
UCC2804  
UCC2805  
MAXIMUM DUTY CYCLE REFERENCE VOLTAGE  
TURN-ON THRESHOLD TURN-OFF THRESHOLD  
100%  
50%  
5 V  
5 V  
5 V  
4 V  
5 V  
4 V  
7.2 V  
9.4 V  
12.5 V  
4.1 V  
12.5 V  
4.1 V  
6.9 V  
7.4 V  
8.3 V  
3.6 V  
8.3 V  
3.6 V  
100%  
100%  
50%  
50%  
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 2007, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...15

中文翻译

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UCC2805-Q1 替代型号

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