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LM3402MMX

更新时间： 2024-02-06 21:02:10
品牌 Logo 应用领域
德州仪器 - TI 稳压器驱动
页数 文件大小 规格书
38页 1263K
描述
0.5A Constant Current Buck Regulator for Driving High Power LEDs

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LM3402MMX 数据手册

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LM3402, LM3402HV  
www.ti.com  
SNVS450E –SEPTEMBER 2006–REVISED MAY 2013  
0.5A Constant Current Buck Regulator for Driving High Power LEDs  
Check for Samples: LM3402, LM3402HV  
1
FEATURES  
DESCRIPTION  
The LM3402/02HV are monolithic switching  
2
•
•
•
•
•
•
•
Integrated 0.5A N-channel MOSFET  
VIN Range from 6V to 42V (LM3402)  
VIN Range from 6V to 75V (LM3402HV)  
500 mA Output Current Over Temperature  
Cycle-by-Cycle Current Limit  
regulators designed to deliver constant currents to  
high power LEDs. Ideal for automotive, industrial, and  
general lighting applications, they contain a high-side  
N-channel MOSFET switch with a current limit of 735  
mA (typical) for step-down (Buck) regulators.  
Hysteretic control with controlled on-time coupled with  
an external resistor allow the converter output voltage  
to adjust as needed to deliver a constant current to  
series and series - parallel connected arrays of LEDs  
of varying number and type, LED dimming by pulse  
width modulation (PWM), broken/open LED  
protection, low-power shutdown and thermal  
shutdown complete the feature set.  
No Control Loop Compensation Required  
Separate PWM Dimming and Low Power  
Shutdown  
•
Supports All-ceramic Output Capacitors and  
Capacitor-less Outputs  
•
•
Thermal Shutdown Protection  
VSSOP, SO PowerPAD Packages  
APPLICATIONS  
•
•
•
•
•
LED Driver  
Constant Current Source  
Automotive Lighting  
General Illumination  
Industrial Lighting  
Typical Application  
C
B
L1  
V
IN  
VIN  
BOOT  
SW  
R
C
ON  
IN  
D1  
RON  
I
F
LM3402/02HV  
CS  
R
SNS  
DIM  
VCC  
GND  
C
F
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.  
All trademarks are the property of their respective owners.  
2
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 © 2006–2013, Texas Instruments Incorporated  
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LM3402MMX 替代型号

型号 品牌 替代类型 描述 数据表
LM3402MM/NOPB TI

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 42-V 0.5-A constant current buck LED driver 8-VSSOP -40 to 125
LM3402MM TI

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 0.5A Constant Current Buck Regulator for Driving High Power LEDs
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 42V 0.5A 恒流降压型 LED 驱动器 | DGK | 8 | -40 to 125

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