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L4981A PDF预览

L4981A

更新时间: 2024-09-15 22:51:55
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 稳压器开关式稳压器或控制器电源电路开关式控制器功率因数校正光电二极管PC
页数 文件大小 规格书
17页 231K
描述
POWER FACTOR CORRECTOR

L4981A 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-20
针数:20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:7.88Samacsys Confidence:3
Samacsys Status:ReleasedSamacsys PartID:179359
Samacsys Pin Count:20Samacsys Part Category:Integrated Circuit
Samacsys Package Category:Dual-In-Line PackagesSamacsys Footprint Name:DIP20
Samacsys Released Date:2015-09-17 10:56:35Is Samacsys:N
模拟集成电路 - 其他类型:POWER FACTOR CONTROLLER控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:19.5 V
最小输入电压:11 V标称输入电压:18 V
JESD-30 代码:R-PDIP-T20JESD-609代码:e3
功能数量:1端子数量:20
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:2 A封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP20,.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
座面最大高度:3.93 mm子类别:Switching Regulator or Controllers
表面贴装:NO切换器配置:SINGLE
最大切换频率:115 kHz技术:BCDMOS
温度等级:AUTOMOTIVE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:NOT SPECIFIED
宽度:7.62 mmBase Number Matches:1

L4981A 数据手册

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L4981A  
L4981B  
POWER FACTOR CORRECTOR  
CONTROL BOOST PWM UP TO 0.99P.F.  
LIMITLINE CURRENT DISTORTION TO < 5%  
UNIVERSAL INPUT MAINS  
MULTIPOWER BCD TECHNOLOGY  
FEED FORWARD LINE AND LOAD REGULA-  
TION  
AVERAGE CURRENT MODE PWM FOR  
MINIMUM NOISE SENSITIVITY  
HIGH CURRENT BIPOLAR AND DMOS TO-  
TEM POLE OUTPUT  
LOW START-UP CURRENT (0.3mA TYP.)  
UNDER VOLTAGE LOCKOUT WITH HYS-  
TERESIS AND PROGRAMMABLE TURN ON  
THRESHOLD  
OVERVOLTAGE, OVERCURRENT PROTEC-  
TION  
DIP20  
SO20  
ORDERING NUMBERS: L4981X (DIP20)  
L4981XD (SO20)  
PRECISE 2% ON CHIP REFERENCE EX-  
TERNALLY AVAILABLE  
SOFT START  
trol functions for designing a high efficiency-mode  
power supply with sinusoidal line current con-  
sumption.  
The L4981 can be easily used in systems with  
mains voltages between 85V to 265V without any  
line switch. This new PFC offers the possibility to  
work at fixed frequency (L4981A) or modulated  
frequency (L4981B) optimizing the size of the in-  
DESCRIPTION  
The L4981 I.C. provides the necessary features  
to achieve a very high power factor up to 0.99.  
Realized in BCD 60II technology this power factor  
corrector (PFC) pre-regulator contains all the con-  
BLOCK DIAGRAM  
1/17  
September 1998  

L4981A 替代型号

型号 品牌 替代类型 描述 数据表
E-L4981A STMICROELECTRONICS

完全替代

L4981A: Fixed Frequency Average Current Mode; L4981B: Line Modulated Frequency Average Cur

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