TEXAS INSTRUMENTS  LM3409EVAL  EVALUATION BOARD, LM3409 1A LED DRIVER

TEXAS INSTRUMENTS LM3409EVAL

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Product Overview


The LM3409EVAL evaluation board showcases the LM3409 PFET controller for a buck current regulator. It is designed to drive 4 LEDs (VO = 15V) at a maximum average LED current (ILED = 1A) from a DC input voltage (VIN = 24V). The switching frequency (Fsw = 525kHz) is targeted for the nominal operating point, however Fsw varies across the entire operating range. However, if the input voltage drops below the regulated LED string voltage, the converter goes into dropout and VO = VIN ideally. The evaluation board showcases several features of the LM3409 including both analog dimming using a potentiometer (R5) tied to the IADJ pin and internal PWM dimming using the EN pin. There is a header (J1) with a removable jumper, which is used to select PWM dimming or low power shutdown. The board has a right angle connector (J2) which can mate with an external LED load board allowing for the LEDs to be mounted close to the driver.
  • 6V to 42V input voltage range
  • Differential, high side current sense
  • Cycle by cycle current limit
  • No control loop compensation required
  • 10,000:1 PWM dimming range
  • 250:1 analog dimming range
  • Supports all ceramic output capacitors and capacitor less outputs
  • Low power shutdown and thermal shutdown

Applications

Automotive; LED Lighting; Industrial; Power Management
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Product Specifications, Documents & More


  • Core Chip: LM3409
  • Device Topology: Buck (Step Down)
  • Dimming Control Type: PWM
  • Input Voltage: 6V to 42V
  • Input Voltage Max: 42V
  • Input Voltage Min: 6V
  • Kit Contents: Evaluation Board for LM3409
  • No. of Outputs: 1
  • Output Current: 1A
  • Output Voltage: -
  • SVHC: To Be Advised
  • Topology: Buck (Step Down)

Availability

Availability:  2

Available until stock is exhausted


  • 2 in stock for same day shipping

Price for: Each 1

Minimum order quantity: 1

Order multiple quantity: 1

Price: $76.18 $76.18

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Substitutes


  Newark Part No. Manufacturer Part No Manufacturer / Description
Availability Price Qty
ascdsc ascdsc ascdsc ascdsc ascdsc
Exact
55R3970
LM3409EVAL/NOPB

LM3409EVAL/NOPB

TEXAS INSTRUMENTS

LM3409, LED DRIVER, BUCK CONTROLLER, EVALUATION BOARD

Price for: Each 1

1+ $76.50

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Available until stock is exhausted


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