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LM2707 Datasheet Inductive-boost Series Led Driver

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM2707 Inductive-Boost Series LED Driver with Programmable Oscillator Frequency February 2005 LM2707 Inductive-Boost Series LED Driver with Programmable Oscillator.

General Description

The LM2707 is a magnetic boost regulator specifically designed for white LED drive applications.

Tightly regulated LED currents, exceptional LED brightness uniformity, and very high LED-drive power efficiency ( > 80%) can all be achieved by stacking the LEDs in series between the www.DataSheet4U.com LM2707 output and the low-voltage feedback pin (0.515V).

The LM2707 requires only a few small external components.

Key Features

  • 18V output capability, PFM regulation, and a high-current switching transistor (400mA peak). These characteristics allow the part to drive a series string of 2-to-4 LEDs with forward currents between 0 and 40mA. LED brightness can be adjusted dynamically simply by applying a PWM signal to the enable (EN) pin. The PWM signal can be as fast as 50kHz because the LM2707 has a fast turn-on time. In addition to LED-drive.

LM2707 Distributor