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LM5026MTX PDF预览

LM5026MTX

更新时间: 2024-11-22 22:47:07
品牌 Logo 应用领域
美国国家半导体 - NSC 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
23页 932K
描述
Active Clamp Current Mode PWM Controller

LM5026MTX 技术参数

是否Rohs认证:不符合生命周期:Transferred
包装说明:TSSOP-16Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.19Is 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:100 V
最小输入电压:13 V标称输入电压:48 V
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
长度:5 mm湿度敏感等级:1
功能数量:1端子数量:16
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:3 A封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.1 mm子类别:Switching Regulator or Controllers
表面贴装:YES最大切换频率:660 kHz
温度等级:AUTOMOTIVE端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:4.4 mmBase Number Matches:1

LM5026MTX 数据手册

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August 2005  
LM5026  
Active Clamp Current Mode PWM Controller  
General Description  
Features  
n Current Mode Control  
The LM5026 PWM controller contains all of the features  
necessary to implement power converters utilizing the active  
clamp / reset technique with current mode control. With the  
active clamp technique, higher efficiencies and greater  
power densities can be realized compared to conventional  
catch winding or RDC clamp / reset techniques. Two control  
outputs are provided, the main power switch control  
(OUT_A) and the active clamp switch control (OUT_B). The  
device can be configured to control either a P-Channel or  
N-Channel clamp switch. The main gate driver features a  
compound configuration, consisting of both MOS  
and Bipolar devices, providing superior gate drive character-  
istics. The LM5026 can be configured to operate with bias  
voltages over a wide input range of 8V to 100V. Additional  
features include programmable maximum duty cycle, line  
under-voltage lockout, cycle-by-cycle current limit, hiccup  
mode fault operation with adjustable timeout delay, PWM  
slope compensation, soft-start, 1MHz capable oscillator with  
synchronization input / output capability, precision reference  
and thermal shutdown.  
n Internal 100V Start-up Bias Regulator  
n 3A Compound Main Gate Driver  
n High Bandwidth Opto-coupler Interface  
n Programmable Line Under-Voltage Lockout (UVLO) with  
Adjustable Hysteresis  
n Versatile Dual Mode Over-Current Protection with hiccup  
delay timer  
n Programmable Overlap or Deadtime between the Main  
and Active Clamp Outputs  
n Programmable Maximum Duty Cycle Clamp  
n Programmable Soft-start  
n Leading Edge Blanking  
n Resistor Programmed 1MHz Capable Oscillator  
n Oscillator Sync I/O Capability  
n Precision 5V Reference  
Packages  
n TSSOP-16  
n LLP-16 (5x5 mm) Thermally Enhanced (Available  
Soon)  
Typical Application Circuit  
20147901  
Simplified Forward Power Converter with Active Clamp Reset  
© 2005 National Semiconductor Corporation  
DS201479  
www.national.com  

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