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TEXAS INSTRUMENTS  LM3405AXMK/NOPB  LED Driver, Buck (Step Down), 3V to 22V input, 1 Output, 1.6 MHz switch-freq., 20V/1 A out, TSOT-6

Product Overview

The LM3405AXMK/NOPB is a 1A constant current buck LED Driver designed to provide a simple and high efficiency solution for driving high power LEDs. With a 0.205V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs. Switching frequency is internally set to 1.6MHz, allowing small surface mount inductors and capacitors to be used. The LM3405A utilizes current-mode control and internal compensation offering ease of use and predictable, high performance regulation over a wide range of operating conditions. With a maximum input voltage of 22V, it can drive up to 5 high-brightness LEDs in series at 1A forward current, with the single LED forward voltage of approximately 3.7V. Additional features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs, thermal shutdown, cycle-by-cycle current limit and overcurrent protection.
  • EN/DIM input for enabling and PWM dimming of LEDs
  • Internally compensated current-mode control
  • Cycle-by-cycle current limit
  • Input voltage UVLO
  • Overcurrent protection
  • Thermal shutdown
  • 300mΩ NMOS switch
  • 40nA Shutdown current at VIN=5V
  • Green product and no Sb/Br

 

Product Information

Device Topology:
Buck (Step Down)
No. of Outputs:
1Outputs
Output Current:
1A
Output Voltage:
20V
Driver Case Style:
TSOT
No. of Pins:
6Pins
Input Voltage Min:
3V
Input Voltage Max:
22V
Switching Frequency:
1.6MHz
Operating Temperature Min:
-65°C
Operating Temperature Max:
150°C
Packaging:
Tape & Reel
Product Range:
-
Automotive Qualifications Standard:
-
Dimming Control Type:
PWM
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (15-Jun-2015)
Topology:
Buck (Step Down)

Find similar products  grouped by common attribute

Applications

  • Computers & Computer Peripherals;
  • Consumer Electronics;
  • Metering;
  • Portable Devices;
  • Clock & Timing;
  • Security

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Product Traceability
RoHS Compliant:
Yes
Authorized Distributor

Substitutes

Led Driver, Buck (Step Down), PWM Dimming, 3V-22V in, 1.6MHz switch, 20V/1A out, TSOT-6

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Price for: Each (Supplied on Cut Tape)

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Price for: Each (Supplied on Cut Tape)

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