LM3402
- Integrated 0.5-A N-channel MOSFET
- VIN Range from 6 V to 42 V (LM3402)
- VIN Range from 6 V to 75 V (LM3402HV)
- 500 mA Output Current Over Temperature
- Cycle-by-Cycle Current Limit
- No Control Loop Compensation Required
- Separate PWM Dimming and Low Power Shutdown
- Supports All Ceramic-Output Capacitors and Capacitor-Less Outputs
- Thermal Shutdown Protection
- VSSOP, SO PowerPAD Packages
The LM3402/HV are monolithic switching regulators designed 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) regulators. 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 thermal shutdown complete the feature set.
For all available packages, see the orderable addendum at the end of the data sheet.技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM3402/HV 0.5-A Constant Current Buck Regulator for Driving High Power LEDs datasheet (Rev. F) | PDF | HTML | 2015年 10月 29日 |
| White paper | Common LED Functions and LED Driver Design Considerations | 2020年 9月 21日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | AN-1656 Design Challenges of Switching LED Drivers (Rev. A) | 2013年 5月 3日 | ||
| EVM User's guide | AN-1500 LM3402/02HV Demo Board (Rev. C) | 2013年 5月 1日 | ||
| EVM User's guide | AN-1585 LM3402 and LM3404 High Power PSOP-8 Evaluation Board (Rev. C) | 2013年 5月 1日 | ||
| Application note | AN-1853 COT Drivers Control LED Ripple Current (Rev. A) | 2013年 5月 1日 | ||
| User guide | LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation Board (Rev. E) | 2013年 5月 1日 | ||
| Application note | Thermal Performance of the LM3404/04HV in SO-8 and PSOP-8 Packages (Rev. A) | 2013年 5月 1日 | ||
| Application note | AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) | 2013年 4月 23日 |
設計與開發
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 引腳 | 下載 |
|---|---|---|
| HSOIC (DDA) | 8 | 檢視選項 |
| VSSOP (DGK) | 8 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
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