LM3404
- Integrated 1-A MOSFET
- VIN Range 6 V to 42 V (LM3404)
- VIN Range 6 V to 75 V (LM3404HV)
- 1.2-A Output Current Overtemperature
- Cycle-by-Cycle Current Limit
- No Control Loop Compensation Required
- Separate PWM Dimming and Low Power
Shutdown - Supports All-Ceramic Output Capacitors and
Capacitor-lessOutputs - Thermal Shutdown Protection
- SOIC-8 Package, SO PowerPAD™-8 Package
The LM3404 and LM3404HV devices are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, these devices contain a high-side N-channel MOSFET switch with a current limit of 1.5-A (typical) for step-down (Buck) regulators. Hysteretic controlled on-time and an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. Some features are: LED dimming using pulse width modulation (PWM), broken or open LED protection, low-power shutdown, and thermal shutdown.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LM3404xx 1-A Constant Current Buck Regulator for Driving High Power LEDs datasheet (Rev. G) | PDF | HTML | 2015/9/29 | ||
| 白皮書 | Common LED Functions and LED Driver Design Considerations | 2020/9/21 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 技術文章 | Color the world with what’s next in RGBW LED light source technology – part 1 | PDF | HTML | 2017/8/3 | |||
| 應用說明 | AN-1656 Design Challenges of Switching LED Drivers (Rev. A) | 2013/5/3 | ||||
| 應用說明 | Thermal Performance of the LM3404/04HV in SO-8 and PSOP-8 Packages (Rev. A) | 2013/5/1 | ||||
| 應用說明 | AN-1853 COT Drivers Control LED Ripple Current (Rev. A) | 2013/5/1 | ||||
| 應用說明 | AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) | 2013/4/23 | ||||
| 使用指南 | LM3404 Driving a Seoul Semi Zpower P4 1A LED User Guide | 2012/1/27 |
設計與開發
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LM3404EVAL — LM3404MA (SOIC) - 適用於 HB LED 的 1A 定電流降壓穩壓器 (LM3404EVAL 基板)
The LM3404/04HV is a buck regulator derived controlled current source designed to drive a series string of high power, high brightness LEDs (HBLEDs) such as the Luxeon™ K2 Emitter at forward currents of up to 1.0A. The board can accept an input voltage ranging from 6V to 42V when using the LM3404. (...)
LM3404FSTDIMEV — LM3404FSTDIMEV - 快速調光和真正恆定 LED 電流評估板
The LM3404/04HV are buck regulator derived controlled current sources designed to drive a series string of high power, high brightness LEDs (HBLEDs) at forward currents of up to 1.0A (LM3404/04HV). This evaluation board demonstrates the enhanced thermal performance, fast dimming and true constant (...)
LM3404MREVAL — LM3402 LM3404 高功率 PSOP-8 評估板
The LM3402/02HV and LM3404/04HV are buck regulator derived controlled current sources designed to drive a series string of high power, high brightness LEDs (HBLEDs) such as the Luxeon™ K2 Emitter at forward currents of up to 0.5A (LM3402/02HV) or 1.0A (LM3404/04HV). This evaluation board (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。