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AP3842S8A

更新时间： 2024-11-18 04:06:23
品牌 Logo 应用领域
易亨 - ANACHIP 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
8页 216K
描述
High Performance Current Mode PWM Controller

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中文翻译

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AP3842S8A 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：SOP, SOP8,.25Reach Compliance Code：unknown
风险等级：5.84Is Samacsys：N
控制模式：CURRENT-MODEJESD-30 代码：R-PDSO-G8
JESD-609代码：e0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：0.2 A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
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
温度等级：COMMERCIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUALBase Number Matches：1

AP3842S8A 数据手册

 浏览型号AP3842S8A的Datasheet PDF文件第2页浏览型号AP3842S8A的Datasheet PDF文件第3页浏览型号AP3842S8A的Datasheet PDF文件第4页浏览型号AP3842S8A的Datasheet PDF文件第5页浏览型号AP3842S8A的Datasheet PDF文件第6页浏览型号AP3842S8A的Datasheet PDF文件第7页 
AP3842/3/4/5  
High Performance Current Mode PWM Controller  
„ Features  
„ General Description  
• Optimized for Off-Line and DC to DC Converters  
• Low Start-Up Current (≦0.5mA)  
The AP3842/3/4/5 family of control ICs provides the  
necessary features to implement off-line or DC to  
DC fixed frequency current mode control schemes  
with a minimal external parts count. Internally  
implemented circuits include under voltage lockout  
featuring start-up current less than 0.5 mA, a  
precision reference trimmed for accuracy at the  
error amp input, logic to insure latched operation, a  
PWM comparator which also provides current limit  
control, and a totem pole output stage designed to  
source or sink high peak current. The output stage,  
suitable for driving N-Channel MOSFETs, is low in  
the off-state.  
• Automatic Feed Forward Compensation  
• Pulse-by-Pulse Current Limiting  
• Enhanced Load Response Characteristics  
• Under-Voltage Lockout (UVLO) with Hysteresis  
• Double Pulse Suppression  
• High Current Totem Pole Output  
• Internally Trimmed Bandgap Reference  
• Current Mode Operation to 500KHZ  
• Low Ro Error Amplifier  
„ Pin Connections  
PDIP-8L, SOP-8L  
Top View  
Differences between members of this family are the  
under-voltage lockout thresholds and maximum  
duty cycle ranges. The AP3842 and AP3844 have  
UVLO thresholds of 16V(on) and 10V(off), ideally  
suited for off-line applications. The corresponding  
thresholds for the AP3843 and AP3845 are 8.5V  
and 7.6V. The AP3842 and AP3843 can operate to  
duty cycles approaching 100%. A range of the zero  
to < 50% is obtained by the AP3844 and AP3845  
by the addition of an internal toggle flip flop which  
blanks the output off every other clock cycle.  
COMP.  
VFB  
VREF  
VI  
1
2
3
4
8
7
6
5
ISENSE  
RT/CT  
OUTPUT  
GROUND  
„ Ordering Information  
AP 384X X X X  
Part No.  
Package  
Packing  
Lead Free  
2:3842  
3:3843  
4:3844  
5:3845  
S8:SOP-8L  
N8:PDIP-8L  
Blank : Normal  
Blank: Tube  
L : Lead Free Package  
A : Taping  
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of  
this product. No rights under any patent accompany the sale of the product.  
Rev.1.0 Oct.11, 2004  
1/8  
12345678

中文翻译

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