NJU6048 Datasheet, PDF(1/13 Page) New Japan Radio – High Efficiency White LED Driver

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NJU6048 Datasheet, PDF (1/13 Pages) New Japan Radio – High Efficiency White LED Driver

NJU6048

PRELIMINARY

High Efficiency White LED Driver

! GENERAL DESCRIPTION

The NJU6048 is a high-efficiency white LED driver. It

contains a high-efficiency step-up DC/DC converter and an

output driver. The IC can output max.18V and drive as many

as 4 white LEDs in series with a constant current, which

guarantees the LEDs with uniform brightness.

The high frequency of the step-up converter permits the

use of small, low-profile inductors and capacitors to

minimize the footprint in space-conscious applications. The

NJU6048 also features low operating voltage of 1.7V and the

small package SOT-23 (MTP-5).

All of these benefits make the NJU6048 suitable for the

battery-powered portable applications such as cellular phones,

camcorders, PDAs, etc.

! PACKAGE OUTLINE

NJU6048F

! FEATURES

# Drives Up to 4White LEDs in Series

IOUT = 20mA(typical)

# Uses Small Inductor and Capacitors

# 1.7V to 6.5V Operating Voltage for Step-up Circuits (VDD)

# Low Switch RDS (ON)

VSW = 18V, RDS=0.8â¦ (ISW=150mA)

# OVP Function

# CMOS Technology

# Package

: SOT-23 5 pin (MTP-5)

! PIN CONFIGURATION (TOP VIEW)

SW 1

VSS

FB 3

VDD

4 OVP

Ver.2005-06-09

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