LM3410 525kHz/1.6MHz, Constant Current Boost and SEPIC LED Driver with Internal Compensation | TI.com

LM3410 (ACTIVE)

525kHz/1.6MHz, Constant Current Boost and SEPIC LED Driver with Internal Compensation

 

Description

The LM3410 and LM3410-Q1 constant current LED driver are a monolithic, high frequency, PWM DC-DC converter, available in 6-pin WSON, 8-pin MSOP-PowerPad™, and 5-pin SOT-23 packages. With a minimum of external components the LM3410 and LM3410-Q1 are easy to use. It can drive 2.8-A (typical) peak currents with an internal 170-mΩ NMOS switch. Switching frequency is internally set to either 525 kHz or 1.6 MHz, allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is high, efficiencies up to 88% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 80 nA. The LM3410 and LM3410-Q1 use current-mode control and internal compensation to provide high-performance over a wide range of operating conditions. Additional features include PWM dimming, cycle-by-cycle current limit, and thermal shutdown.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Space-Saving SOT-23 and WSON Packages
  • Input Voltage From 2.7 V to 5.5 V
  • Output Voltage From 3 V to 24 V
  • 2.8-A (Typical) Switch Current Limit
  • High Switching Frequency
    • 525 KHz (LM3410Y)
    • 1.6 MHz (LM3410X)
  • 170-mΩ NMOS Switch
  • 190-mV Internal Voltage Reference
  • Internal Soft Start
  • Current-Mode, PWM Operation
  • Thermal Shutdown

WEBENCH® Designer LM3410

  V in Lower V in Upper
2.7 ≤  V  V ≤ 5.5
Ambient Temp  °C ≤ 125°C
Light Output (optional)  Lumens

Parametrics

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Part number Order 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)
LM3410 Order now DC/DC     2.7     5.5     1.5     3     24     1     Boost
Sepic    
PWM    
   
Converter
Inductive    
525     525     3.4     0.2     2.3 / 1.9     Enable/Shutdown
Soft Start
Thermal Shutdown    
Catalog     -40 to 125     MSOP-PowerPAD | 8
SOT-23 | 5
WSON | 6    
8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)
See datasheet (WSON)    
LM3410-Q1 Order now DC/DC     2.7     5.5     1.5     3     24     1     Boost
Sepic    
PWM       Inductive     525     525     3.4       2.3 / 1.9     Enable/Shutdown
Integrated Switch
Soft Start
Thermal Shutdown    
Automotive     -40 to 125     SOT-23 | 5     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)