參數(shù)資料
型號: LM3402HVMM
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: 0.5A Constant Current Buck Regulator for Driving High Power LEDs
中文描述: 0.94 A SWITCHING REGULATOR, PDSO8
封裝: PLASTIC, MSOP-8
文件頁數(shù): 1/22頁
文件大小: 840K
代理商: LM3402HVMM
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) regu-
lators. 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 ther-
mal shutdown complete the feature set.
Features
n
Integrated 0.5A N-channel MOSFET
n
V
IN
Range from 6V to 42V (LM3402)
n
V
IN
Range from 6V to 75V (LM3402HV)
n
500 mA Output Current Over Temperature
n
Cycle-by-Cycle Current Limit
n
No Control Loop Compensation Required
n
Separate PWM Dimming and Low Power Shutdown
n
Supports all-ceramic output capacitors and
capacitor-less outputs
n
Thermal shutdown protection
n
MSOP-8 Package
Applications
n
LED Driver
n
Constant Current Source
n
Automotive Lighting
n
General Illumination
n
Industrial Lighting
Typical Application
20192101
October 2006
L
2006 National Semiconductor Corporation
DS201921
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM3402HVMM/NOPB 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
LM3402HVMMX 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
LM3402HVMMX/NOPB 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
LM3402HVMR 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 6V to 75V 8-Pin PSOP EP Rail 制造商:Texas Instruments 功能描述:Buck Reg for Hi Pwr LED Drvs, LM3402HVMR
LM3402HVMR/NOPB 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel