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LM5041BMTCX/NOPB PDF预览

LM5041BMTCX/NOPB

更新时间： 2024-10-02 01:10:51
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
20页 989K
描述
Cascaded PWM Controller

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LM5041BMTCX/NOPB 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：TSSOP, TSSOP16,.25
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.68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：90 V最小输入电压：15 V
标称输入电压：48 VJESD-30 代码：R-PDSO-G16
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最大输出电流：0.1 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：1.2 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：225 kHz
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
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：NOT SPECIFIED
宽度：4.4 mm

LM5041BMTCX/NOPB 数据手册

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LM5041B  
www.ti.com  
SNVS605 –MAY 2009  
LM5041B Cascaded PWM Controller  
Check for Samples: LM5041B  
1
FEATURES  
DESCRIPTION  
The LM5041B PWM controller contains all of the  
features necessary to implement either current-fed or  
voltage-fed push-pull or bridge power converters.  
These “Cascaded” topologies are well suited for  
multiple output and higher power applications. The  
LM5041B includes these four control outputs: the  
buck stage controls (HD and LD) and the push-pull  
control outputs (PUSH and PULL). Push-pull outputs  
are driven at 50% nominal duty cycle at one half of  
the switching frequency of the buck stage and can be  
configured for either a specified overlap time (for  
current-fed applications) or a specified non-overlap  
time (for voltage-fed applications). Push-pull stage  
MOSFETs can be driven directly from the internal  
gate drivers while the buck stage requires an external  
driver such as the LM5102. The LM5041B includes a  
high-voltage start-up regulator that operates over a  
wide input range of 15V to 100V. The PWM controller  
is designed for high-speed capability including an  
oscillator frequency range up to 1 MHz and total  
propagation delays of less than 100 ns. Additional  
features include line Under-Voltage Lock-Out  
(UVLO), Soft-Start, an error amplifier, precision  
voltage reference, and thermal shutdown.  
2
•
•
Internal Start-up Bias Regulator  
Programmable Line Under-Voltage Lockout  
(UVLO) with Adjustable Hysteresis  
•
•
•
•
•
Current Mode Control  
Internal Error Amplifier with Reference  
Cycle-by-cycle Over-Current Protection  
Leading Edge Blanking  
Programmable Push-Pull Overlap or Dead  
Time  
•
•
•
•
•
Internal 1.5A Push-Pull Gate Drivers  
Programmable Soft-Start  
Programmable Oscillator with Sync Capability  
Precision Reference  
Thermal Shutdown  
APPLICATIONS  
•
•
•
Telecommunication Power Converters  
Industrial Power Converters  
Multi-Output Power Converters  
The differences between LM5041, LM5041A and  
LM5041B are as follows: In the LM5041A and the  
LM5041B version, the hiccup mode over-current  
protection is not employed and the VCC bias  
regulator is not disabled by a low state at the SS pin.  
In the LM5041B version, both the high and low side  
buck stage gate drivers are forced to a low state  
when the controller is disabled. In the LM5041 and  
the LM5041B version, the buck stage controller is  
disabled by either a low state at the UVLO pin or a  
low state at the SS pin. Also in the LM5041B version,  
the REF pin 5V regulator is not disabled by a UVLO  
pin low state.  
PACKAGES  
•
•
TSSOP-16  
WSON-16 (5x5 mm) Thermally Enhanced  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2009, Texas Instruments Incorporated  
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LM5041BMTCX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM5041BMTC/NOPB TI

完全替代

 Cascaded PWM Controller

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