LM3404 1.0A Constant Current Buck Regulator for High Power LED Drivers | TI.com

LM3404 (ACTIVE)

1.0A Constant Current Buck Regulator for High Power LED Drivers

 

Recommended alternative parts

  • TPS92515  -  2A LED driver, integrated N-channel FET, high-sde current sense, Shunt PWM dimming capable

Description

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.

Features

  • 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

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Parametrics Compare all products in General lighting LED drivers

 
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)
Package Group
Package size: mm2:W x L (PKG)
LM3404 LM3404HV TPS92513 TPS92513HV
DC/DC     DC/DC     DC/DC     DC/DC    
6     6     4.5     4.5    
42     75     42     60    
1     1     1.5     1.5    
0.2     0.2     0.2     0.2    
40     73     40     58    
1     1     1     1    
Buck     Buck     Buck     Buck    
PWM     PWM     Analog
PWM    
Analog
PWM    
   
   
   
   
Inductive     Inductive     Converter
Inductive    
Converter
Inductive    
20     20     100     100    
1000     1000     2000     2000    
0.625     0.625     0.337     0.337    
0.2     0.2     0.2     0.2    
5.3 / 5.15     5.3 / 5.15        
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    
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    
SO PowerPAD | 8
SOIC | 8    
SO PowerPAD | 8
SOIC | 8    
MSOP-PowerPAD | 10     MSOP-PowerPAD | 10    
8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)    
8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)    
10MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 10)     10MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 10)    

Design tool

WEBENCH® Designer LM3404

  V in Lower V in Upper
6.0 ≤  V  V ≤ 42.0
Ambient Temp  °C ≤ 100°C
Light Output (optional)  Lumens