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UC1845AJ883B PDF预览

UC1845AJ883B

更新时间： 2024-11-25 22:17:47
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
11页 427K
描述
CURRENT-MODE PWM CONTROLLER

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UC1845AJ883B 技术参数

生命周期：Active零件包装代码：DIP
包装说明：DIP-8针数：8
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.24Is Samacsys：N
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：8.2 V标称输入电压：15 V
JESD-30 代码：R-GDIP-T8长度：9.6 mm
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：CERAMIC, GLASS-SEALED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筛选级别：MIL-STD-883 Class B
座面最大高度：4.57 mm子类别：Switching Regulator or Controllers
最大供电电流 (Isup)：25 mA标称供电电压 (Vsup)：11 V
表面贴装：NO切换器配置：BOOST
最大切换频率：500 kHz技术：BIPOLAR
温度等级：MILITARY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：6.67 mm
Base Number Matches：1

UC1845AJ883B 数据手册

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UC1842A-EP, UC1843A-EP, UC1844A-EP, UC1845A-EP  
CURRENT-MODE PWM CONTROLLER  
SGLS134B – SEPTEMBER 2002 – REVISED APRIL 2003  
D
Controlled Baseline  
– One Assembly/Test Site, One Fabrication  
Site  
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  
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  
V
V
1
2
3
4
8
7
6
5
REF  
CC  
V
FB  
I
OUTPUT  
GND  
SENSE  
R /C  
T
T
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  
‡
PACKAGE  
T
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 2002 – 2003, 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...11

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UC1845AJ883B 替代型号

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