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LM3414

正在供貨

42V 60W 共陽(yáng)極恒流降壓型 LED 驅(qū)動(dòng)器，無(wú)需外部電流感應(yīng)資源

可提供此產(chǎn)品的更新版本

功能與比較器件相同，但引腳排列有所不同
TPS922053 正在供貨 具有電感式快速調(diào)光和擴(kuò)頻功能的 65V、2A 降壓 LED 驅(qū)動(dòng)器 New device with inductive fast dimming and spread spectrum

產(chǎn)品詳情

Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 42 Vout (max) (V) 42 Vout (min) (V) 0.2 Iout (max) (A) 1 Iq (typ) (mA) 3.2 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 42 Vout (max) (V) 42 Vout (min) (V) 0.2 Iout (max) (A) 1 Iq (typ) (mA) 3.2 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
HSOIC (DDA) 8 29.4 mm2 4.9 x 6 WSON (NGQ) 8 9 mm2 3 x 3
  • Supports LED Power up to 60 W(1): 18x 3-W
    HBLEDs
  • RequiresNo External Current Sensing Resistor
  • ±3% LED Current Accuracy
  • Up to 96% Efficiency
  • High Contrast Ratio (Minimum Dimming Current
    Pulse Width <10 μS)
  • Integrated Low-Side N-Channel MOSFET
  • Adjustable Constant LED Current From 350 mA to
    1000 mA
  • Support Analog Dimming and Thermal Fold-Back
  • Wide Input Voltage Range:
    • 4.5 V to 42 V (LM3414)
    • 4.5 V to 65 V (LM3414HV)
  • Constant Switching Frequency Adjustable from
    250 kHz to 1000 kHz
  • Thermal Shutdown Protection
  • Power Enhanced SOIC-8 or 3 mm × 3 mm
    WSON-8 Package
  • Supports LED Power up to 60 W(1): 18x 3-W
    HBLEDs
  • RequiresNo External Current Sensing Resistor
  • ±3% LED Current Accuracy
  • Up to 96% Efficiency
  • High Contrast Ratio (Minimum Dimming Current
    Pulse Width <10 μS)
  • Integrated Low-Side N-Channel MOSFET
  • Adjustable Constant LED Current From 350 mA to
    1000 mA
  • Support Analog Dimming and Thermal Fold-Back
  • Wide Input Voltage Range:
    • 4.5 V to 42 V (LM3414)
    • 4.5 V to 65 V (LM3414HV)
  • Constant Switching Frequency Adjustable from
    250 kHz to 1000 kHz
  • Thermal Shutdown Protection
  • Power Enhanced SOIC-8 or 3 mm × 3 mm
    WSON-8 Package

The LM3414 and LM3414HV are 1-A 60-W(1) common anode-capable constant current buck LED drivers. They are suitable for driving single string of 3-W HBLED with up to 96% efficiency. They accept input voltages from 4.5 VDC to 65 VDC and deliver up to 1-A average LED current with ±3% accuracy. The integrated low-side N-channel power MOSFET and current sensing element realize simple and low component count circuitry, as no bootstrapping capacitor and external current-sensing resistor are required. An external small-signal resistor to ground provides very fine LED current adjustment, analog dimming, and thermal fold-back functions.

Constant switching frequency operation eases EMI. No external loop compensation network is needed. The proprietary Pulse-Level-Modulation (PLM) control method benefits in high conversion efficiency and true average LED current regulation. Fast response time realizes fine LED current pulse fulfilling the 240 Hz 256-step dimming resolution requirement for general lighting.

The LM3414 and LM3414HV are available in SOIC-8 and 3 mm × 3 mm WSON-8 packages.

The LM3414 and LM3414HV are 1-A 60-W(1) common anode-capable constant current buck LED drivers. They are suitable for driving single string of 3-W HBLED with up to 96% efficiency. They accept input voltages from 4.5 VDC to 65 VDC and deliver up to 1-A average LED current with ±3% accuracy. The integrated low-side N-channel power MOSFET and current sensing element realize simple and low component count circuitry, as no bootstrapping capacitor and external current-sensing resistor are required. An external small-signal resistor to ground provides very fine LED current adjustment, analog dimming, and thermal fold-back functions.

Constant switching frequency operation eases EMI. No external loop compensation network is needed. The proprietary Pulse-Level-Modulation (PLM) control method benefits in high conversion efficiency and true average LED current regulation. Fast response time realizes fine LED current pulse fulfilling the 240 Hz 256-step dimming resolution requirement for general lighting.

The LM3414 and LM3414HV are available in SOIC-8 and 3 mm × 3 mm WSON-8 packages.
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類(lèi)型 標(biāo)題 下載最新的英語(yǔ)版本 日期
* 數(shù)據(jù)表 LM3414/HV 1-A, 60-W Common Anode-Capable Constant Current Buck LED Driver Requires No External Current Sensing Resistor 數(shù)據(jù)表 (Rev. F) PDF | HTML 2015年 12月 3日
白皮書(shū) 常見(jiàn) LED 功能和 LED 驅(qū)動(dòng)器設(shè)計(jì)注意事項(xiàng) 英語(yǔ)版 2020年 9月 21日
選擇指南 電源管理指南 2018 (Rev. K) 2018年 7月 31日
選擇指南 電源管理指南 2018 (Rev. R) 2018年 6月 25日
技術(shù)文章 Color the world with what’s next in RGBW LED light source technology – part 1 PDF | HTML 2017年 8月 3日
應(yīng)用手冊(cè) AN-1656 Design Challenges of Switching LED Drivers (Rev. A) 2013年 5月 3日
應(yīng)用手冊(cè) Application Note 1656 Design Challenges of Switching LED Drivers (cn) 最新英語(yǔ)版本 (Rev.A) 2007年 10月 18日

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評(píng)估板

LM3414HVMREVAL — LM3414 LM3414HV 1A 65V LED 驅(qū)動(dòng)器 PSOP-8 評(píng)估板

The LM3414HV is a 65V floating buck LED driver that designed to drive up to 18 pieces of serial High Brightness LEDs (HBLEDs) with up to 1000 mA LED forward current. With the incorporation of the proprietary Pulse-Level-Modulation (PLM) technology, the LM3414HV requires no external current sensing (...)

用戶指南: PDF
TI.com 上無(wú)現(xiàn)貨
評(píng)估板

LM3414HVSDEVAL — LM3414 LM3414HV 1A 65V LED 驅(qū)動(dòng)器 LLP-8 評(píng)估板

The LM3414HV is a 65V floating buck LED driver that designed to drive up to 18 pieces of serial High Brightness LEDs (HBLEDs) with up to 1000 mA LED forward current. With the incorporation of the proprietary Pulse-Level-Modulation (PLM) technology, the LM3414HV requires no external current sensing (...)

用戶指南: PDF
TI.com 上無(wú)現(xiàn)貨
仿真模型

LM3414 TINA-TI Transient Dimming Reference Design

SNVM113.TSC (782 KB) - TINA-TI Reference Design
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仿真模型

LM3414 TINA-TI Transient Line Transient Reference Design

SNVM114.TSC (773 KB) - TINA-TI Reference Design
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仿真模型

LM3414 TINA-TI Transient Spice Model

SNVM112.ZIP (63 KB) - TINA-TI Spice Model
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仿真模型

LM3414 TINA-TI Transient Startup Reference Design

SNVM111.TSC (790 KB) - TINA-TI Reference Design
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  • MSL 等級(jí)/回流焊峰值溫度
  • MTBF/時(shí)基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測(cè)
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