NJU6050 Datasheet, PDF (1/8 Pages) New Japan Radio – High Efficiency White LED Driver

NJU6050
PRELIMINARY
High Efficiency White LED Driver
GENERAL DESCRIPTION
The NJU6050 is a high-efficiency white LED driver. It
contains a high-efficiency step-up DC/DC converter and an
output driver. The IC ensures a 28V maximum capacity
which allows series connection of 8 white LEDs with a
constant current so that the LED currents are identical for
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. And
additional features are a low operating voltage of 2.5V and
the small package SOT-23 (MTP-5).
All of these benefits make the NJU6050 suitable for the
battery-powered portable applications such as a cellular
phone, a camcorder, PDA, etc.
PACKAGE OUTLINE
FEATURES
Drives Up to 8 White LEDs in Series
V_SW = 28V, I_OUT = 20mA
Uses Small Inductor and Capacitors
2.5V to 6.5V Operating Voltage for Step-up Circuits (V_DD)
CMOS Technology
Package
: SOT-23 5 pin (MTP-5)
PIN CONFIGURATION (TOP VIEW)
SW 1
V_SS
2
FB ³
5 V_DD
4 _SHDNb
Ver.2004-02-25
-1-