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LM5041SDX/NOPB

更新时间： 2024-11-30 02:58:19
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德州仪器 - TI /
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22页 1076K
描述
Cascaded PWM Controller

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LM5041SDX/NOPB 数据手册

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LM5041  
www.ti.com  
SNVS248D –AUGUST 2003–REVISED MARCH 2013  
LM5041 Cascaded PWM Controller  
Check for Samples: LM5041  
1
FEATURES  
PACKAGES  
2
•
•
Internal Start-up Bias Regulator  
•
•
TSSOP-16  
Programmable Line Under-Voltage Lockout  
(UVLO) with Adjustable Hysteresis  
WSON-16 (5x5 mm) Thermally Enhanced  
DESCRIPTION  
•
•
•
•
•
Current Mode Control  
The LM5041 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  
LM5041’s four control outputs include: 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 both-off 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 LM5041 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 100ns. Additional  
features include: line Under-Voltage Lockout (UVLO),  
soft-start, an error amplifier, precision voltage  
reference, and thermal shutdown.  
Internal Error Amplifier with Reference  
Dual Mode 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  
+42V Automotive Systems  
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 © 2003–2013, Texas Instruments Incorporated  
1234567...22

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LM5041SDX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM5041SD/NOPB TI

类似代替

 Cascaded PWM controller with Hiccup mode 16-WSON -40 to 125
LM5041SD TI

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 LM5041 Cascaded PWM Controller
LM5041SDX TI

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 LM5041 Cascaded PWM Controller

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