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UCC38C42PG4 PDF预览

UCC38C42PG4

更新时间： 2024-11-19 12:02:03
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德州仪器 - TI 控制器
页数 文件大小 规格书
32页 894K
描述
BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER

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UCC38C42PG4 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：DIP包装说明：DIP, DIP8,.3
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：5.64
其他特性：ALSO OPERATES IN CURRENT MODE模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：18 V最小输入电压：12 V
标称输入电压：15 VJESD-30 代码：R-PDIP-T8
JESD-609代码：e4长度：9.81 mm
功能数量：1端子数量：8
最高工作温度：70 °C最低工作温度：
最大输出电流：1 A封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP8,.3
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：5.08 mm子类别：Switching Regulator or Controllers
表面贴装：NO切换器配置：SINGLE
最大切换频率：1000 kHz技术：BICMOS
温度等级：COMMERCIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.62 mmBase Number Matches：1

UCC38C42PG4 数据手册

 浏览型号UCC38C42PG4的Datasheet PDF文件第2页浏览型号UCC38C42PG4的Datasheet PDF文件第3页浏览型号UCC38C42PG4的Datasheet PDF文件第4页浏览型号UCC38C42PG4的Datasheet PDF文件第5页浏览型号UCC38C42PG4的Datasheet PDF文件第6页浏览型号UCC38C42PG4的Datasheet PDF文件第7页 
UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45  
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45  
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010  
BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER  
FEATURES  
DESCRIPTION  
D
Enhanced Replacement for UC3842A Family  
With Pin-to-Pin Compatibility  
UCC38C4x family is a high-performance current-  
mode PWM controller. It is an enhanced BiCMOS  
version with pin-for-pin compatibility to the  
industry standard UC384xA family and UC384x  
family of PWM controllers. In addition, lower  
startup voltage versions of 7 V are offered as  
UCC38C40 and UCC38C41.  
D
D
D
D
1-MHz Operation  
50-μA Standby Current, 100-μA Maximum  
Low Operating Current of 2.3 mA at 52 kHz  
Fast 35-ns Cycle-by-Cycle Overcurrent  
Limiting  
Providing necessary features to control fixed  
frequency, peak current-mode power supplies,  
this family offers the following performance  
advantages. The device offers high-frequency  
operation up to 1 MHz with low start-up and  
operating currents, thus minimizing start-up loss  
and low operating power consumption for  
improved efficiency. The device also features a  
very fast current-sense-to-output delay time of  
35 ns and a ±1 A peak output current capability  
with improved rise and fall times for driving large  
external MOSFETs directly.  
D
D
±1-A Peak Output Current  
Rail-to-Rail Output Swings with 25-ns Rise  
and 20-ns Fall Times  
D
±1% Initial Trimmed 2.5-V Error Amplifier  
Reference  
D
D
D
Trimmed Oscillator Discharge Current  
New Under Voltage Lockout Versions  
MSOP-8 Package Minimizes Board Space  
APPLICATIONS  
D
D
D
Switch-Mode Power Supplies  
The UCC38C4x family is offered in 8-pin  
packages, MSOP (DGK), SOIC (D) and PDIP (P).  
dc-to-dc Converters  
Board Mount Power Modules  
FUNCTIONAL BLOCK DIAGRAM  
5.0 V  
VREF  
8
VREF  
7
5
VDD  
GND  
UVLO  
+
VREF  
GOOD LOGIC  
RT/CT  
4
OSC  
(NOTE)  
T
6
OUT  
2.5 V  
ERROR AMP  
2R  
+
S
R
Q
FB  
COMP  
CS  
2
1
3
R
1V  
Q
Note: Toggle flip--flop used only in UCC38C41, UCC38C44, and UCC38C45.  
UDG--99139  
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.  
Copyright © 2003 -- 2010, Texas Instruments Incorporated  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
www.ti.com  
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UCC38C42PG4 替代型号

型号 品牌 替代类型 描述 数据表
UCC38C42P TI

完全替代

 BICMOS LOW POWER CURRENT MODE PWM CONTROLLER

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