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UCC3882DWPTR PDF预览

UCC3882DWPTR

更新时间： 2024-11-26 19:37:11
品牌 Logo 应用领域
德州仪器 - TI 信息通信管理开关光电二极管
页数 文件大小 规格书
21页 243K
描述
1.5A SWITCHING CONTROLLER, 700kHz SWITCHING FREQ-MAX, PDSO28

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UCC3882DWPTR 技术参数

生命周期：Obsolete包装说明：SOP,
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.73
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION标称输入电压：12 V
JESD-30 代码：R-PDSO-G28长度：17.905 mm
功能数量：1端子数量：28
最高工作温度：70 °C最低工作温度：
最大输出电流：1.5 A封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE认证状态：Not Qualified
座面最大高度：2.64 mm表面贴装：YES
切换器配置：PUSH-PULL最大切换频率：700 kHz
技术：BICMOS温度等级：COMMERCIAL
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL宽度：7.5 mm
Base Number Matches：1

UCC3882DWPTR 数据手册

 浏览型号UCC3882DWPTR的Datasheet PDF文件第2页浏览型号UCC3882DWPTR的Datasheet PDF文件第3页浏览型号UCC3882DWPTR的Datasheet PDF文件第4页浏览型号UCC3882DWPTR的Datasheet PDF文件第5页浏览型号UCC3882DWPTR的Datasheet PDF文件第6页浏览型号UCC3882DWPTR的Datasheet PDF文件第7页 
UCC3882/-1  
www.ti.com  
SLUS294C –MARCH 1999–REVISED FEBRUARY 2010  
AVERAGE CURRENT MODE SYNCHRONOUS  
CONTROLLER WITH 5-BIT DAC  
Check for Samples: UCC3882/-1  
1
FEATURES  
DESCRIPTION  
•
Combined DAC/Voltage Monitor and PWM With  
Synchronous Rectification Functions  
The UCC3882 combines high precision reference and  
voltage monitoring circuitry with average current  
mode PWM synchronous rectification controller  
circuitry to power high-end microprocessors with a  
minimum of external components. The UCC3882  
converts 5 V or 12 V to an adjustable output ranging  
from 1.8VDC to 2.05VDC in 50 mV steps and  
2.1VDC to 3.5VDC in 100 mV steps with 1% DC  
system accuracy.  
•
•
•
5-Bit Digital-to-Analog (DAC) Converter  
1% DAC/Reference Combined Accuracy  
Compatible with 5 V and 12 V Systems and 12  
V-Only Systems  
•
•
Low Offset Current Sense Amplifier  
Programmable Oscillator Frequency Practical  
to 700 kHz  
•
•
•
Foldback Current Limiting  
Overvoltage and Undervoltage Fault Windows  
2-Ω Totem Pole Outputs with Programmable  
Dead Times to Eliminate Cross-Conduction  
•
Chip Disable Function  
BLOCK DIAGRAM  
CAM  
4
CAO  
6
OVP  
OVP (+ 17.5%)  
OV (+ 9%)  
OV  
UV  
PWRGD  
2
VSNS  
1
Current  
Amplifier  
3 V  
UV (−9%)  
Q
Voltage  
Amplifier  
VDRVHI  
GATEHI  
PGND  
19  
18  
12  
VFB 15  
Turn  
On  
S
R
Delay  
RT  
COMP 16  
Anti Cross  
Condition  
Foldback  
Current  
Limit  
6
ISOUT  
VDRVLO  
GATELO  
10  
11  
Current Sense  
Amplifier  
1.37 V  
Turn  
On  
8
7
IS−  
IS+  
Delay  
X16  
VSNS  
RT  
Output Offset  
EN  
17  
9
5 V REF  
4.3 V/4.2 V  
D0  
D1  
27  
26  
VIN  
D/C Converter  
2 V − 3.5 V, 100 mV  
or  
UVLO  
OSC  
VIN  
D2 24  
D3 23  
D4 22  
1.3 V − 2.05 V, 50 mV  
10.5 V/10 V  
5 V  
REF  
VREF  
GND  
21  
28  
13  
14  
CT RT  
20  
COMMAND  
UDG−97047−1  
1
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.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 1999–2010, Texas Instruments Incorporated  
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