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參數(shù)資料
| 型號： | LM3402 |
| 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(qū)動高功率LED |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 840K |
| 代理商： | LM3402 |
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3402HV | 0.5A Constant Current Buck Regulator for Driving High Power LEDs |
| LM3402HVMM | 0.5A Constant Current Buck Regulator for Driving High Power LEDs |
| LM3402HVMMX | 0.5A Constant Current Buck Regulator for Driving High Power LEDs |
| LM3402MM | 0.5A Constant Current Buck Regulator for Driving High Power LEDs |
| LM3402MMX | 0.5A Constant Current Buck Regulator for Driving High Power LEDs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3402_07 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:0.5A Constant Current Buck Regulator for Driving High Power LEDs |
| LM3402_08 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:0.5A Constant Current Buck Regulator for Driving High Power LEDs |
| LM3402_1 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation Board |
| 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(qū)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(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 |
| LM3402EVAL | 制造商:Texas Instruments 功能描述:EVAL BOARD |
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