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LM5039MHX

更新时间： 2024-01-18 14:46:32
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
24页 506K
描述
Half-Bridge PWM Controller with Average Current Limit

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中文翻译

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LM5039MHX 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：WQFN-24
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：12 weeks
风险等级：5.22模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：105 V最小输入电压：13 V
标称输入电压：48 VJESD-30 代码：R-PQCC-N24
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：24最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC20,.16X.2,20
封装形状：RECTANGULAR封装形式：CHIP CARRIER, 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：PUSH-PULL
最大切换频率：570 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：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4 mm
Base Number Matches：1

LM5039MHX 数据手册

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February 16, 2010  
LM5039  
Half-Bridge PWM Controller with Average Current Limit  
General Description  
Features  
The LM5039 Half-Bridge Controller/Gate Driver contains all  
of the features necessary to implement half-bridge topology  
power converters using voltage mode control with line voltage  
feed-forward. The LM5039 is a functional variant of the  
LM5035B half-bridge PWM controller, featuring average cur-  
rent limit during an overload event to balance the center-point  
of the half-bridge capacitor divider. The floating high-side gate  
driver is capable of operating with supply voltages up to 105V.  
Both the high-side and low-side gate drivers are capable of  
2A peak. An internal high voltage startup regulator is included,  
along with programmable line undervoltage lockout (UVLO).  
The oscillator is programmed with a single resistor to fre-  
quencies up to 2MHz. The oscillator can also be synchronized  
to an external clock. A current sense input provides peak cy-  
cle-by-cycle and average current limit. Other features include  
adjustable hiccup mode overload protection, soft-start, revi-  
sion reference, and thermal shutdown.  
105V / 2A Half-Bridge Gate Drivers  
■
■
Synchronous Rectifier Control Outputs with  
Programmable Delays  
High Voltage (105V) Start-up Regulator  
■
■
Voltage-mode Control with Line Feed-Forward and Volt •  
Second Limiting  
Programmable average current limit balances the half-  
bridge capacitor divider voltage in an overload condition  
■
Programmable hiccup mode timer reduces power  
dissipation during a continuous overload event  
■
Adjustable peak cycle-by-cycle over current protection  
■
■
■
■
■
■
■
■
Resistor Programmed, 2MHz Capable Oscillator  
Patented Oscillator Synchronization  
Programmable Line Under-Voltage Lockout  
Internal Thermal Shutdown Protection  
Adjustable Soft-Start  
Packages  
Direct Opto-coupler Interface  
5V Reference Output  
•
•
TSSOP-20EP (Thermally enhanced)  
LLP-24 (4mm x 5mm) [Coming soon]  
Simplified Application Diagram  
30100501  
© 2010 National Semiconductor Corporation  
301005  
www.national.com  
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