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LM3414HV

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65-V 60-W-Gleichstromanodenfähiger Konstantstrom-Abwärts-LED-Treiber erfordert keine externe Stromme

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LM3414HV

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Produktdetails

Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (max) (V) 65 Vout (min) (V) 0.2 Iout (max) (A) 1 Iq (typ) (mA) 3.3 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) 65 Vout (max) (V) 65 Vout (min) (V) 0.2 Iout (max) (A) 1 Iq (typ) (mA) 3.3 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 mm × 6 mm) WSON (NGQ) 8 9 mm² (3 mm × 3 mm)
  • 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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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt LM3414/HV 1-A, 60-W Common Anode-Capable Constant Current Buck LED Driver Requires No External Current Sensing Resistor datasheet (Rev. F) PDF | HTML 03.12.2015
Whitepaper Common LED Functions and LED Driver Design Considerations 21.09.2020
Anwendungshinweis AN-1656 Design Challenges of Switching LED Drivers (Rev. A) 03.05.2013
EVM User's guide AN-2076 LM3414HV 1A 65V LED Driver Evaluation Board (Rev. B) 10.08.2010

Design und Entwicklung

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Evaluierungsplatine

LM3414HVMREVAL — Evaluierungsplatine für LM3414 LM3414HV 1 A 65 V-LED-Treiber PSOP-8

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 (...)

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Evaluierungsplatine

LM3414HVSDEVAL — LM3414 LM3414HV 1 A, 65 V, LED-Treiber-LLP-8-Evaluierungsplatine

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 (...)

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Simulationsmodell

LM3414 TINA-TI Transient Dimming Reference Design

SNVM113.TSC (782 KB) - TINA-TI-Referenzdesign
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LM3414 TINA-TI Transient Line Transient Reference Design

SNVM114.TSC (773 KB) - TINA-TI-Referenzdesign
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LM3414 TINA-TI Transient Spice Model

SNVM112.ZIP (63 KB) - TINA-TI Spice-Modell
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Simulationsmodell

LM3414 TINA-TI Transient Startup Reference Design

SNVM111.TSC (790 KB) - TINA-TI-Referenzdesign
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Referenzdesign

PMP4484 — AC-Eingang, 6-Kanal-LED-Strings mit 30 W-Ausgang – Referenzdesign

The PMP4484 is a power reference design with AC input. It is a isolated LED driver, provides 6 channel LED outputs with PWM dimming.  It implements a high PF flyback controller UCC28810 to output DC 40V, the Constant Current Buck LED Driver LM3414HV downs the voltage to 30V to drive  LED. (...)

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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
HSOIC (DDA) 8 Ultra Librarian
WSON (NGQ) 8 Ultra Librarian
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