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AZ3844AM14TR-E1

更新时间： 2024-09-17 19:35:31
品牌 Logo 应用领域
美台 - DIODES 光电二极管
页数 文件大小 规格书
14页 234K
描述
Switching Regulator/Controller, Current-mode, 0.2A, 500kHz Switching Freq-Max, BIPolar, PDSO14

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AZ3844AM14TR-E1 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：SOP, SOP14,.25Reach Compliance Code：compliant
风险等级：5.84控制模式：CURRENT-MODE
JESD-30 代码：R-PDSO-G14端子数量：14
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：0.2 A封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP14,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
认证状态：Not Qualified子类别：Switching Regulator or Controllers
表面贴装：YES最大切换频率：500 kHz
技术：BIPOLAR温度等级：INDUSTRIAL
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUALBase Number Matches：1

AZ3844AM14TR-E1 数据手册

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Data Sheet  
CURRENT MODE PWM CONTROLLER  
AZ3842A/3A/4A/5A  
General Description  
Features  
The AZ3842A/3A/4A/5A are high performance fixed  
frequency current-mode PWM controller series. They  
are improved versions of AZ3842/3/4/5.  
·
Low Start-up Current: 0.15mA  
Robust V Line/Load Regulation  
·
REF  
Low Line Regulation : 4mV  
Low Load Regulation : 4mV  
High Stability of Reference Voltage over a Full  
These integrated circuits are optimized for off-line and  
DC-DC converter applications with minimum external  
components. They feature under-voltage lockout  
(UVLO) circuit with low start-up current, trimmed  
oscillator for precise duty cycle control, current sense  
comparator providing maximum current limiting and a  
totem pole output stage for increasing output current.  
In addition, these ICs also feature accurate protection  
against over-temperature, over-current and maximal  
output power.  
·
o
Temperature Range: 0.2mV/ C  
·
·
Operating Frequency up to 500KHz  
High PWM Frequency Stability over a Full Tem-  
perature Range: 2.5%  
High PWM Frequency Stability under a Full Sup-  
ply Voltage Range: 0.2%  
Accurate Over-temperature Protection with Hys-  
teresis  
UVLO with Hysteresis  
·
·
·
The AZ3842A and AZ3844A have UVLO thresholds  
of 16V(on) and 10V(off); The corresponding thresh-  
olds for AZ3843A and AZ3845A are 8.4 V(on) and  
7.6V(off).  
Applications  
·
·
·
·
·
·
Off-line Converter  
DC-DC Converter  
Voltage Adapter  
CRT Monitor Power Supply  
Desktop Power Supply  
DVD/STB Power Supply  
The AZ3842A and AZ3843A can operate approaching  
100% duty cycle; AZ3844A and AZ3845A can operate  
from zero to 50% duty cycle.  
These ICs are available in 3 packages: SOIC-8, DIP-8  
and SOIC-14.  
SOIC-14  
SOIC-8  
DIP-8  
Figure 1. Package Types of AZ3842A/3A/4A/5A  
BCD Semiconductor Manufacturing Limited  
Apr. 2005 Rev. 1. 3  
1
1234567...14

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