Buck Regulator, Constant Current, for Driving High Power LEDs

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Overview

The NCL30161 is a hysteretic step−down, constant−current driver for high power LEDs. It is ideal for industrial and general lighting applications utilizing minimal external components.

The NCL30161 operates with an input voltage range from 6.3 V to 40 V. The hysteretic control gives good power supply rejection and fast response during load transients and PWM dimming to LED arrays of varying number and type.

A dedicated PWM input (DIM/EN) enables a wide range of pulsed dimming, and a high switching frequency allows the use of smaller external components minimizing space and cost. Protection features include resistor−programmed constant LED current, shorted LED protection, under−voltage and thermal shutdown. The NCL30161 is available in a DFN10 3 mm x 3 mm package.

  • LED Driver
  • Constant Current Source
  • General Illumination
  • Industrial Lighting
  • Single Pin Brightness and Enable/Disable Control using PWM
  • Adjustable LED Current
  • Thermal Shutdown Protection

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NCL30161MNTXG

Active

Pb

A

H

P

DFN-10

1

260

REEL

3000

Y

Step-Down

6.3

40

40

1

2400

$0.2793

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