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UCC2804-Q1 PDF预览

UCC2804-Q1

更新时间： 2024-12-01 11:06:39
品牌 Logo 应用领域
德州仪器 - TI 开关控制器开关式稳压器开关式控制器电源电路开关式稳压器或控制器
页数 文件大小 规格书
14页 384K
描述
具有 12.5V/8.3V UVLO 和 50% 占空比的汽车类单端 1MHz 电流模式 PWM 控制器

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中文翻译

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UCC2804-Q1 数据手册

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SGLS121B − JULY 2002 − REVISED 2004  
D
Qualification in Accordance With  
AEC-Q100  
D
D
D
D
Operation to 1 MHz  
Internal Soft Start  
†
D
Qualified for Automotive Applications  
Internal Fault Soft Start  
D
Customer-Specific Configuration Control  
Can Be Supported Along With  
Major-Change Approval  
Internal Leading-Edge Blanking of the  
Current Sense Signal  
D
1-Amp Totem-Pole Output  
D
D
ESD Protection Exceeds 200 V Using  
Machine Model (C = 200 pF, R = 0)  
D
70-ns Typical Response from  
Current-Sense to Gate Drive Output  
100-µA Typical Starting Supply Current  
500-µA Typical Operating Supply Current  
D
D
1.5% Tolerance Voltage Reference  
D
Same Pinout as UC3842 and UC3842A  
†
Contact factory for details. Q100 qualification data available on  
request.  
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.  
The UCC280xQDRQ1 series is specified for the automotive temperature range of −40_C to 125_C, and  
qualified in accordance with AEC-Q100 stress test qualification for integrated circuits.  
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 2004, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...14

中文翻译

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UCC2804-Q1 替代型号

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