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參數資料
| 型號： | LM3404HV |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 1.0A Constant Current Buck Regulator for Driving High Power LEDs |
| 中文描述： | 安培恒流降壓穩壓器用于驅動高功率LED |
| 文件頁數： | 1/2頁 |
| 文件大小： | 455K |
| 代理商： | LM3404HV |
LM3404/04HV
1.0A Constant Current Buck Regulator for Driving High
Power LEDs
General Description
The LM3404/04HV 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 NFET switch with a minimum over-
temperature current limit of 1.2A 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 constant current to series and
series-parallel connected LED arrays of varying number and
type. Output current dimming via PWM, broken/open LED
protection, low-power shutdown and thermal shutdown com-
plete the feature set.
Features
n
Integrated 1.2A NFET
n
V
IN
Range 6V to 42V (LM3404)
n
V
IN
Range 6V to 75V (LM3404HV)
n
1.2A 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
SO-8 Package
Applications
n
LED Driver
n
Constant Current Source
n
Automotive Lighting
n
General Illumination
n
Industrial Lighting
Typical Application
20205401
Connection Diagram
20205402
8-Lead Plastic SO-8 Package
NS Package Number M08A
ADVANCE INFORMATION
October 2006
L
2006 National Semiconductor Corporation
DS202054
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM3404HVEVAL | 制造商:Texas Instruments 功能描述:LM3404HV, LIGHTING, BUCK, EVAL BOARD 制造商:Texas Instruments 功能描述:EVAL BOARD, LM3404HV 1A LED DRIVER; Topology:Buck (Step Down); No. of Outputs:1; Output Current:1A; Input Voltage Min:6V; Input Voltage Max:75V; Dimming Control Type:PWM; Kit Contents:Evaluation Board for LM3404HV |
| LM3404HVEVAL | 制造商:Texas Instruments 功能描述:LM3404HV EVAL BOARD |
| LM3404HVEVAL/NOPB | 功能描述:LED 照明開發工具 LM3404HV EVAL BOARD RoHS:否 制造商:Fairchild Semiconductor 產品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| LM3404HVMA | 功能描述:LED照明驅動器 RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| LM3404HVMA/NOPB | 功能描述:LED照明驅動器 1.0A CONSTANT CRNT BUCK REG RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
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