60W Common Anode Capable Constant Current Buck LED Driver Requires No Ext. Current Sensing Res - LM3414HV

LM3414HV (ACTIVE)

60W Common Anode Capable Constant Current Buck LED Driver Requires No Ext. Current Sensing Res

 

Recommended alternative parts

  • TPS92513HV  -  1.5A current rating with ultra low shutdown supply current

Description

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.

Features

  • 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

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Parametrics Compare all products in Illumination & General Lighting LED Driver

 
Input Voltage (Type)
Vin (Min) (V)
Vin (Max) (V)
Iout (Max) (A)
Vout (Min) (V)
Vout (Max) (V)
Regulated Outputs (#)
Topology
Dimming Method
Power Factor Correction (Min)
Type
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Vref (V)
UVLO Thresholds On/Off (V)
Features
Rating
Operating Temperature Range (C)
Pin/Package
LM3414HV LM3414 TPS92511 TPS92513
DC/DC    DC/DC    DC/DC    DC/DC   
4.5    4.5    4.5    4.5   
65    42    65    42   
1    1    0.5    1.5   
0.2    0.2    0.2    0.2   
65    42    65    40   
1    1    1    1   
Buck    Buck    Buck    Buck   
Analog
PWM   
Analog
PWM   
Analog
PWM   
Analog
PWM   
N/A    N/A    N/A    N/A   
Converter
Inductive   
Converter
Inductive   
Converter
Inductive   
Converter
Inductive   
250    250    100    100   
1000    1000    500    2000   
3.3    3.2    2.8    0.337   
0.2    0.2    0.2    0.2   
3.75 / 3.45    3.75 / 3.45    3.8 / 3.5     
Adjustable Switch Frequency
Enable/Shutdown
Integrated Switch
Thermal Shutdown   
Adjustable Switch Frequency
Enable/Shutdown
Integrated Switch
Thermal Shutdown   
Adjustable Switch Frequency
Enable/Shutdown
Integrated Switch
Thermal Shutdown   
Adjustable Switch Frequency
Enable/Shutdown
Integrated Switch
Synchronization Pin
Thermal Shutdown   
Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125    -40 to 125   
8SO PowerPAD
8WSON   
8SO PowerPAD
8WSON   
8SO PowerPAD    10MSOP-PowerPAD   

WEBENCH® Designer LM3414HV

  V in Lower V in Upper
4.5 ≤  V  V ≤ 65.0
Ambient Temp  °C ≤ 125°C
Light Output (optional)  Lumens