參數(shù)資料
型號(hào)： LM3407
廠商： National Semiconductor Corporation
英文描述： 350 mA, Constant Current Output Floating Buck Switching Converter for High Power LEDs
中文描述： 350毫安，恒流輸出浮點(diǎn)高功率LED的降壓開(kāi)關(guān)轉(zhuǎn)換器
文件頁(yè)數(shù)： 1/16頁(yè)
文件大小： 321K
代理商： LM3407
January 18, 2008
LM3407
350 mA, Constant Current Output Floating Buck Switching
Converter for High Power LEDs
General Description
The LM3407 is a constant current output floating buck switch-
ing converter designed to provide constant current to high
power LEDs. The device is ideal for automotive, industrial and
general lighting applications. The LM3407 has an integrated
power N-MOSFET that makes the application solution com-
pact and simple to implement. An external 1% thick-film re-
sistor allows the converter output voltage to adjust as needed
to deliver constant current within 10% accuracy to a serially
connected LED string of varying number and type. Converter
switching frequency is adjustable from 300 kHz to 1 MHz. The
LM3407 features a dimming input to enable LED brightness
control by Pulse Width Modulation (PWM). Additionally, a
separate enable pin allows for low power shutdown. An ex-
posed pad eMSOP-8 package provides excellent heat dissi-
pation and thermal performance. Input UVLO and output
open-circuit protection ensure a robust LED driver solution.
Features
■
Input operating range 4.5V to 30V
■
Output voltage range: 0.1V
IN
to 0.9V
IN
■
Accurate constant current output
■
Cycle-by-Cycle current limit
■
Independent device enable (CMOS compatible) and PWM
dimming control
■
Converter switching frequency adjustable from 300 kHz to
1 MHz
■
No external control loop compensation required
■
Supports ceramic and low ESR output capacitors
■
Input Under Voltage Lock Out (UVLO)
■
Thermal shutdown protection
■
eMSOP-8 Package
Applications
■
LED Driver
■
Constant Current Source
■
Automotive Lighting
■
General Illumination
■
Industrial Lighting
Typical Application
30046635
2008 National Semiconductor Corporation
300466
www.national.com
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相關(guān)PDF資料
PDF描述
LM3407MY 350 mA, Constant Current Output Floating Buck Switching Converter for High Power LEDs
LM3407MYX 350 mA, Constant Current Output Floating Buck Switching Converter for High Power LEDs
LM3410YSDX 525kHz/1.6MHz, Constant Current Boost and SEPIC LED Driver with Internal Compensation
LM3410 525kHz/1.6MHz, Constant Current Boost and SEPIC LED Driver with Internal Compensation
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM3407_09 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:350 mA, Constant Current Output Floating Buck Switching Converter for High Power LEDs
LM3407_11 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:LM3407 350 mA, Constant Current Output Floating Buck Switching Converter
LM3407EVAL 功能描述:BOARD EVALUATION FOR LM3407 RoHS:否 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - LED 驅(qū)動(dòng)器 系列:PowerWise® 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® 電流 - 輸出 / 通道:20mA 輸出及類(lèi)型:1，非隔離 輸出電壓:17V 特點(diǎn):可調(diào)光 輸入電壓:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相關(guān)產(chǎn)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
LM3407EVAL/NOPB 功能描述:電源管理IC開(kāi)發(fā)工具 LM3407 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
LM3407MY 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 4.5V to 30V 8-Pin MSOP EP T/R 制造商:Texas Instruments 功能描述:BUCK SW CONVERTER, 350MA, POWERWISE
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