參數(shù)資料
型號： LM3402_07
廠商： National Semiconductor Corporation
英文描述： 0.5A Constant Current Buck Regulator for Driving High Power LEDs
中文描述： 0.5A的恒流降壓穩(wěn)壓器用于驅動高功率LED
文件頁數(shù)： 1/24頁
文件大小： 431K
代理商： LM3402_07
June 2007
LM3402/LM3402HV
0.5A Constant Current Buck Regulator for Driving High
Power LEDs
General Description
The LM3402/02HV are monolithic switching regulators de-
signed 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) regula-
tors. Hysteretic control with controlled on-time coupled with
an external resistor allow the converter output voltage to ad-
just 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 ther-
mal shutdown complete the feature set.
Features
■ Integrated 0.5A N-channel MOSFET
■ V
IN Range from 6V to 42V (LM3402)
■ V
IN Range from 6V to 75V (LM3402HV)
■ 500 mA Output Current Over Temperature
■ Cycle-by-Cycle Current Limit
■ No Control Loop Compensation Required
■ Separate PWM Dimming and Low Power Shutdown
■ Supports all-ceramic output capacitors and capacitor-less
outputs
■ Thermal shutdown protection
■ MSOP-8, PSOP-8 Packages
Applications
■ LED Driver
■ Constant Current Source
■ Automotive Lighting
■ General Illumination
■ Industrial Lighting
Typical Application
20192101
2007 National Semiconductor Corporation
201921
www.national.com
LM3402/LM3402HV
0.5A
Constant
Current
Buck
Regulator
for
Driving
High
Power
LEDs
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相關代理商/技術參數(shù)
參數(shù)描述
LM3402EVAL 功能描述:BOARD EVALUATION FOR LM3402 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - LED 驅動器 系列:PowerWise® 標準包裝:1 系列:PowerWise® 電流 - 輸出 / 通道:20mA 輸出及類型:1，非隔離 輸出電壓:17V 特點:可調光 輸入電壓:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相關產品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD
LM3402EVAL 制造商:Texas Instruments 功能描述:EVAL BOARD
LM3402EVAL/NOPB 功能描述:電源管理IC開發(fā)工具 LM3402 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
LM3402HV 制造商:Texas Instruments 功能描述:Buck Regulator ,0.5A ,LED Drivers,MSOP8
LM3402HVEVAL 功能描述:BOARD EVALUATION FOR LM3402HV RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - LED 驅動器 系列:PowerSmart® 標準包裝:1 系列:PowerWise® 電流 - 輸出 / 通道:20mA 輸出及類型:1，非隔離 輸出電壓:17V 特點:可調光 輸入電壓:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相關產品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD
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