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LM5026 PDF预览

LM5026

更新时间: 2024-01-03 09:39:56
品牌 Logo 应用领域
美国国家半导体 - NSC 控制器
页数 文件大小 规格书
23页 932K
描述
Active Clamp Current Mode PWM Controller

LM5026 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SON
包装说明:HVSON, SOLCC16,.2,20针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:1.53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 VJESD-30 代码:S-PDSO-N16
JESD-609代码:e3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标称输出电压:7.6 V
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装等效代码:SOLCC16,.2,20封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:0.8 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:SINGLE最大切换频率:660 kHz
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:5 mmBase Number Matches:1

LM5026 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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