Preliminary
NJU6061
Full Color LED Controller Driver with PWM Control
!
GENERAL DESCRIPTION
The
NJU6061
is an RGB LED driver with PWM control. It
contains PWM (pulse width modulation) controller, LED
drivers, 8-bit serial interface, etc. Each of the R (red), G (green)
and B (blue) outputs produces 128 levels individually so that the
RGB LED emits full color. It features a programmable sweep
function, which can changes LED color smoothly reducing CPU
load.
It requires only four external components such as three
resistors for LED current adjustment and the one for oscillation,
which enables the
NJU6061
to save PCB space. The
NJU6061
is suited for a large number of applications such as cellular
phones, car stereo sets, household appliances, illumination
equipment, etc.
!
PACKAGE OUTLINE
NJU6061P
!
FEATURES
#
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Controls the 3-color LED Separately (ILED=30mA
x
3 outputs)
Built-in PWM Luminance Control (128 steps
x
3)
Built-in 8bit serial Interface Circuit
Sweep Programming Function
Built-in Oscillation Circuit
Operating Voltage for Step-up Circuits
: 2.4V to 5.5V
Package
: FFP12(2.0*2.0*0.85±0.15mm)
CMOS Technology
Ver.2004-03-09
-1-
NJU6061
!
BLOCK DIAGRAM
V
DD
OSC
OSC
Preliminary
EN
V
LED
LED1
Program
Register
128 step
PWM
Driver
30mA
VDD
Program
Register
128 step
PWM
Driver
30mA
LED2
C
P
U
CS
CLK
DATA
VSS
I/F
Instruction
Decoder
Program
Register
128 step
PWM
Driver
30mA
LED3
!
PIN DESCRIPTIONS
No.
PIN NAME
V
DD
RSTb
CSb
CLK
DATA
OSC
V
SS
EN
LED1
LED2
LED3
TYPE
Power
Input
Input
Input
Input
Input
Power
Input
Output
Output
Output
DESCRIPTIONS
V
DD
Power Supply terminal
Reset terminal - Active “L”.
Chip Select terminal
The serial data is fixed on the rising edge of CSb clock.
Shift Clock terminal
Serial Data terminal
Oscillating terminal
External resistor connecting
Ground terminal
Output Enable terminal
LED Connect terminals (Open drain output)
Output level are 32 steps PWM by instruction control.
Connecting cathode of LED.
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
-2-
Ver.2004-03-09
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