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TEXAS INSTRUMENTS  LM3405AEVAL  LM3405A PWM LED Driver Evaluation Board with Thermal Shutdown Protection

TEXAS INSTRUMENTS LM3405AEVAL
TEXAS INSTRUMENTS LM3405AEVAL
Technical Data Sheet (458.51KB) EN See all Technical Docs

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TEXAS INSTRUMENTS LM3405AEVAL
TEXAS INSTRUMENTS LM3405AEVAL

Product Overview

The LM3405AEVAL evaluation board is configured to drive a series string of high power, high brightness LEDs at a forward current of 1A using the LM3405A constant current buck regulator. The converter output voltage adjusts as needed to maintain a constant current through the LED array. The LM3405A is a step down regulator with an output voltage range extending from a VO(MIN) of 205mV (the reference voltage) to a VO(MAX) determined by the maximum duty cycle (typically 94%). It can drive up to five LEDs in series at 1A forward current, with the single LED forward voltage of approximately 3.7V (Typical of white, blue and green LEDs using InGaN technology).
  • input voltage range of 3V to 22V
  • Drives up to five high brightness LEDs in series at 1A
  • 1.6MHz switching frequency
  • EN/DIM input for enabling and PWM dimming of LEDs
  • 300mΩ NMOS switch
  • 40nA shutdown current at VIN = 5V
  • Internally compensated current mode control
  • Cycle by cycle current limit
  • Input voltage UVLO
  • Over current protection

 

Product Information

Core Chip:
LM3405A
Device Topology:
Buck (Step Down)
No. of Outputs:
1Outputs
Output Current:
1A
Output Voltage:
-
Input Voltage Min:
3V
Input Voltage Max:
22V
Dimming Control Type:
PWM
Kit Contents:
Evaluation Board for LM3405A
Product Range:
-
Input Voltage:
3V to 22V
SVHC:
To Be Advised
Topology:
Buck (Step Down)

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Applications

  • LED Lighting;
  • Industrial;
  • Power Management

Legislation and Environmental

Substitutes

EVALUATION BOARD, LM3405A 1A LED DRIVER

TEXAS INSTRUMENTS

2: 

Price for: Each

1+ $48.97

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