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參數(shù)資料
| 型號： | LM3402MM |
| 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： | LM3402MM |
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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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM3402MM/HALF | 制造商:Texas Instruments 功能描述:DRIVER LED 0.5A POWERWISE MSOP8 |
| LM3402MM/NOPB | 功能描述:開關變換器、穩(wěn)壓器與控制器 0.5A CONSTANT CRNT BUCK REG 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 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| LM3402MMX | 功能描述:開關變換器、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 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| LM3402MMX/NOPB | 功能描述:開關變換器、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 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| LM3402MR | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 6V to 42V 8-Pin PSOP EP Rail |
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