NJRC NJU6061

Preliminary
NJU6061
Full Color LED Controller Driver with PWM Control
! GENERAL DESCRIPTION
! PACKAGE OUTLINE
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.
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-
Preliminary
NJU6061
! BLOCK DIAGRAM
VDD
EN
VLED
OSC
OSC
Program
Register
128 step
PWM
Driver
30mA
Program
Register
128 step
PWM
Driver
30mA
Program
Register
128 step
PWM
Driver
30mA
C
P
U
CS
CLK
DATA
I/F
VDD
Instruction
Decoder
LED1
LED2
LED3
VSS
! PIN DESCRIPTIONS
No.
PIN NAME
VDD
TYPE
Power
DESCRIPTIONS
VDD Power Supply terminal
RSTb
Input
CSb
Input
CLK
Input
Reset terminal - Active ā€œLā€.
Chip Select terminal
The serial data is fixed on the rising edge of CSb clock.
Shift Clock terminal
DATA
Input
OSC
Input
VSS
Power
Serial Data terminal
Oscillating terminal
External resistor connecting
Ground terminal
EN
Input
Output Enable terminal
LED1
Output
LED2
Output
LED3
Output
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