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UCC2813-3-Q1

更新时间： 2024-11-25 11:14:31
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德州仪器 - TI 控制器
页数 文件大小 规格书
46页 2490K
描述
具有 4.1V/3.6V UVLO 和 100% 占空比的汽车类经济型单端 1MHz 电流模式 PWM 控制器

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UCC2813-3-Q1 数据手册

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UCC2813-0-Q1, UCC2813-1-Q1, UCC2813-2-Q1, UCC2813-3-Q1  
UCC2813-4-Q1, UCC2813-5-Q1  
SGLS245E –MAY 2020–REVISED MAY 2020  
UCC2813-x-Q1 Low-Power Economy BiCMOS Current-Mode PWM  
1 Features  
3 Description  
The UCC2813-x-Q1 device family of high-speed, low-  
power integrated circuits contains 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.  
1
•
•
Qualified for automotive applications  
AEC-Q100 qualified with the following results:  
–
Device temperature grade 1: –40°C to 125°C  
TA  
–
–
Device HBM classification level 2: ±2 kV  
These devices have the same pin configuration as  
the UC284x device family, and also offer the added  
features of internal full-cycle soft start and internal  
leading-edge blanking of the current-sense input.  
Device CDM classification level C5: >1000 V  
•
•
•
•
•
•
100-µA typical starting supply current  
500-µA typical operating supply current  
Operation to 1 MHz  
The UCC2813-x-Q1 device family offers a variety of  
package options, choice of maximum duty cycle, and  
choice of critical voltage levels. Devices with lower  
reference voltage such as the UCC2813-3-Q1 and  
UCC2813-5-Q1 fit best into battery operated systems,  
while the higher reference and the higher UVLO  
hysteresis of the UCC2813-2-Q1 device and  
UCC2813-4-Q1 device make these ideal choices for  
use in off-line power supplies.  
Internal soft start  
Internal fault soft start  
Internal leading-edge blanking of the current-  
sense signal  
•
•
1-A totem-pole output  
70-ns typical response from current-sense to gate-  
drive output  
The UCC2813-x-Q1 device series is specified for  
operation from –40°C to 125°C.  
•
•
1.5% tolerance voltage reference  
Same pinout as the UCC3802 device, UC3842  
device, and UC3842A device families  
Device Information(1)  
PART NUMBER  
PACKAGE  
SOIC (8)  
TSSOP (8)  
BODY SIZE (NOM)  
3.91 mm × 4.90 mm  
4.40 mm × 3.00 mm  
2 Applications  
UCC2813-x-Q1  
•
•
Automotive power supplies  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
Auxiliary power supply for automotive hybrid and  
electric vehicles  
•
AC and DC power supplies  
Block Diagram  
COMP  
1
FB  
2
CS  
3
7
VCC  
UCCx813-1  
UCCx813-4  
UCCx813-5  
Only  
Leading Edge  
Blanking  
1.5 V  
VCC  
OK  
REF/2  
Over Current  
T
Q
S
Q
Q
R
S
S
R
Q
Oscillator  
6
OUT  
4 V  
Voltage  
Reference  
PWM  
Latch  
13.5 V  
R
REF  
OK  
0.5 V  
Full Cycle  
Soft Start  
Logic  
Power  
1V  
τ=4ms  
5
GND  
8
4
REF  
Copyright © 2016, Texas Instruments Incorporated  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 
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UCC2813-3-Q1 替代型号

型号 品牌 替代类型 描述 数据表
UCC2813-1-Q1 TI

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 具有 9.4V/7.4V UVLO 和 50% 占空比的汽车类经济型单端 1MHz 电流模
UCC2813-2-Q1 TI

功能相似

 具有 12.5V/8.3V UVLO 和 100% 占空比的汽车类经济型 1MHz 电流模
UCC2813-0-Q1 TI

功能相似

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