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AP3843N8LA PDF预览

AP3843N8LA

更新时间: 2024-11-18 20:13:59
品牌 Logo 应用领域
美台 - DIODES 开关光电二极管
页数 文件大小 规格书
8页 225K
描述
Switching Regulator, Current-mode, 0.7A, 500kHz Switching Freq-Max, PDIP8, LEAD FREE, PLASTIC, DIP-8

AP3843N8LA 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,
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.65模拟集成电路 - 其他类型:SWITCHING REGULATOR
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 VJESD-30 代码:R-PDIP-T8
JESD-609代码:e3长度:9.27 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:0.7 A封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:5.33 mm
表面贴装:NO切换器配置:SINGLE
最大切换频率:500 kHz温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)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:40宽度:7.62 mm
Base Number Matches:1

AP3843N8LA 数据手册

 浏览型号AP3843N8LA的Datasheet PDF文件第2页浏览型号AP3843N8LA的Datasheet PDF文件第3页浏览型号AP3843N8LA的Datasheet PDF文件第4页浏览型号AP3843N8LA的Datasheet PDF文件第5页浏览型号AP3843N8LA的Datasheet PDF文件第6页浏览型号AP3843N8LA的Datasheet PDF文件第7页 
Not Recommended for New Design  
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  

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