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UC1843AMDREPG4 PDF预览

UC1843AMDREPG4

更新时间： 2024-11-23 21:14:07
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
15页 1004K
描述
Enhanced Product Current-Mode Pwm Controller 8-SOIC -55 to 125

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中文翻译

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UC1843AMDREPG4 技术参数

是否Rohs认证： 符合生命周期：Active
零件包装代码：SOIC包装说明：SOP, SOP8,.25
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.16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
最大输入电压：25 V最小输入电压：12 V
标称输入电压：15 VJESD-30 代码：R-PDSO-G8
JESD-609代码：e4长度：4.9 mm
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：125 °C
最低工作温度：-55 °C最大输出电流：1 A
最大输出电压：5.05 V最小输出电压：4.95 V
标称输出电压：5 V封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：SINGLE
最大切换频率：500 kHz技术：BIPOLAR
温度等级：MILITARY端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.9 mmBase Number Matches：1

UC1843AMDREPG4 数据手册

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UC1842A-EP, UC1843A-EP, UC1844A-EP, UC1845A-EP  
CURRENT-MODE PWM CONTROLLER  
SGLS134D − SEPTEMBER 2002 − REVISED JANUARY 2013  
D
Controlled Baseline  
− One Assembly/Test Site, One Fabrication  
D
D
D
D
D
D
D
D
D
Automatic Feed Forward Compensation  
Pulse-by-Pulse Current Limiting  
Enhanced Load Response Characteristics  
Under-Voltage Lockout With Hysteresis  
Double Pulse Suppression  
Site  
D
D
D
D
D
Extended Temperature Performance of  
−55°C to 125°C  
Enhanced Diminishing Manufacturing  
Sources (DMS) Support  
High Current Totem Pole Output  
Internally Trimmed Bandgap Reference  
500 kHz Operation  
Enhanced Product Change Notification  
†
Qualification Pedigree  
Low R Error Amp  
O
Optimized for Off-line and DC-to-DC  
Converters  
D PACKAGE  
(TOP VIEW)  
D
Low Start Up Current (<0.5 mA)  
D
Trimmed Oscillator Discharge Current  
†
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.  
COMP  
VFB  
ISENSE  
RT/CT  
VREF  
VCC  
OUTPUT  
GND  
1
2
3
4
8
7
6
5
description  
The UC1842A/3A/4A/5A family of control ICs is a pin-for-pin compatible improved version of the UC3842/3/4/5  
family. Providing the necessary features to control current mode switched mode power supplies, this family has  
the following improved features. Start up current is guaranteed to be less than 0.5 mA. Oscillator discharge is  
trimmed to 8.3 mA. During under voltage lockout, the output stage can sink at least 10 mA at less than 1.2 V  
for V over 5 V.  
CC  
The difference between members of this family are shown in the table below.  
PART NUMBER  
UC1842A  
UVLO ON  
16 V  
UVLO OFF  
10 V  
MAXIMUM DUTY CYCLE  
<100%  
<100%  
<50%  
UC1843A  
8.5 V  
7.9 V  
UC1844A  
16 V  
10 V  
UC1845A  
8.5 V  
7.9 V  
<50%  
‡
ORDERING INFORMATION  
ORDERABLE  
TOP-SIDE  
MARKING  
‡
T
PACKAGE  
A
PART NUMBER  
UC1842AMDREP  
UC1843AMDREP  
UC1844AMDREP  
UC1845AMDREP  
−55°C to 125°C  
−55°C to 125°C  
−55°C to 125°C  
−55°C to 125°C  
SOP − D  
SOP − D  
SOP − D  
SOP − D  
Tape and reel  
Tape and reel  
Tape and reel  
Tape and reel  
1842AME  
1843AME  
1844AME  
1845AME  
‡
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design  
guidelines are available at www.ti.com/sc/package.  
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.  
Copyright © 2006, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...15

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UC1843AMDREPG4 替代型号

型号 品牌 替代类型 描述 数据表
UC1843AMDREP TI

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UC2844AD8 TI

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UC2844AD8TR TI

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