NJU6060V-TE1# - NJR - Product.Network

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NJU6060

Ver.2004-04-16

Full Color LED Controller Driver with PWM Control

! GENERAL DESCRIPTION

The NJU6060 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 32 levels individually so that the

RGB LED emits 32,768 colors (32 x 32 x 32).

It requires only four external components such as three

resistors for LED current adj ustment and the o ne for oscillatio n,

which enables the NJU6060 to save PCB space. The NJU6060

is suited for a large number of applications such as cellular

phones, car stereo sets, household appliances, illumination

equipment, etc.

! FEATURES

# Controls the 3-color LED Separately (ILED=10mA x 3 outputs)

# Built-in P WM Lumina nce Control (32 st eps x 3)

# Built-in 8bit serial Interface Circuit

# Built-in Oscillatio n Cir c uit

# Operating Voltage for Step-up Circuits : 2.4V to 5.5V

# Package : SSOP-10

# CMOS T echnology

!PACKAGE OUTLINE

NJU6060V

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NJU6060

Ver.2004-04-16

! PIN CONNECTIONS (TOP VIEW)

! PIN DESCRIPTIO NS

No. PIN NAME TYPE DESCRIPTIONS

1 V

DD

Power V

DD

Power Supply terminal

2 RSTb Input Reset terminal - Active “L”.

3 CSb Input Chip Select terminal

The serial data is fixed on the rising edge of CSb clock.

4 CLK Input Shift Clock terminal

5 DATA Input Serial Data terminal

6 OSC Input Oscillating terminal

External resistor connecting

7 V

SS

Power Ground terminal

8 LED1 Output

9 LED2 Output

10 LED3 Output

LED Connect terminals (Open drain output)

Output level are 32 steps P WM b y instruction control.

Connecting cathode of LED.

V

DD

RSTb

CSb

CLK

DATA OSC

V

SS

LED1

LED2

LED3

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NJU6060

Ver.2004-04-16

! BLOCK DIAGRAM

! FUNCTIONAL DESCRIPTIONS

(1) Description for each blocks

(1-1) PWM Luminance Control

The NJU6060 incorporates three channel of 32 steps PWM Luminance Control circuits. 32 steps of Luminance

Control b y setting up DUTY. The relation between a register and DUTY is shown below:

REGISTER DUTY REGISTER DUTY REGISTER DUTY REGISTER DUTY

0,0,0,0,0 1/32 0,1,0,0,0 9/32 1,0,0,0,0 17/32 1,1,0,0,0 25/32

0,0,0,0,1 2/32 0,1,0,0,1 10/32 1,0,0,0,1 18/32 1,1,0,0,1 26/32

0,0,0,1,0 3/32 0,1,0,1,0 11/32 1,0,0,1,0 19/32 1,1,0,1,0 27/32

0,0,0,1,1 4/32 0,1,0,1,1 12/32 1,0,0,1,1 20/32 1,1,0,1,1 28/32

0,0,1,0,0 5/32 0,1,1,0,0 13/32 1,0,1,0,0 21/32 1,1,1,0,0 29/32

0,0,1,0,1 6/32 0,1,1,0,1 14/32 1,0,1,0,1 22/32 1,1,1,0,1 30/32

0,0,1,1,0 7/32 0,1,1,1,0 15/32 1,0,1,1,0 23/32 1,1,1,1,0 31/32

0,0,1,1,1 8/32 0,1,1,1,1 16/32 1,0,1,1,1 24/32 1,1,1,1,1 32/32

(1-2) Oscillator

The NJU6060 Oscillation circuit is generated cloc k which generates PWM by connecting external resistor.

The oscillation circuit with the external register generate the clock for PWM. The PWM frequency (f

PWM

) is finely

adjusted by value of the external register. In addition, the ON/OFF o f osci llation circuit is contro lled by the instruction,

and the current consumption is decreased when it was OFF of the oscillation circuit.

If PWM was high when the oscillation circuit became OFF, the situation of PWM was kept. Input OFF command of

the output port.

OSC

32step

PWM

32step

PWM

32step

PWM

Driver

Instruction

Decoder

OSC

V

DD

RSTb

CSb

CL

K

DAT

A

V

SS

LED1

LED2

LED3

V

DD

C

P

U

I

/

F

V

LED

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NJU6060

Ver.2004-04-16

(2) Instructions

3 line type serial interface using a setup of PWM data, ON/OFF of Light Emitting Diode, etc. are made.

The input data and latched at rising edge of chip shi ft clock (CLK) and the 8-bit data are fetched into the NJU6060 at

the rising edge of chip select (CS). The data to input is MSB first.

Table.1 shows the instruction codes of the NJU6060.

Table 1. Instru cti on Code

Code

Instruction D7 D6 D5 D4 D3 D2 D1 D0 Discription

LED1

PWM Data Set 0 0 0 D D D D D 5-bit PWM data is set.

LED2

PWM Data Set 0 0 1 D D D D D 5-bit PWM data is set.

LED3

PWM Data Set 0 1 0 D D D D D 5-bit PWM data is set.

PWM Frequency set

/ OSC ON/OFF

/Output port ON/OFF

0 1 1 f

PWM

OSC LED1 LED2 LED3

f

PWM

0:(fosc/2)/32

1:(fosc/2)/64

OSC 0:OFF

1:ON

LED1 to 3 0:OFF

1:ON

LED1

PWM Pha se set 1 0 0 * * * Phase value

LED2

PWM Pha se set 1 0 1 * * * Phase value

LED3

PWM Pha se set 1 1 0 * * * Phase value

0,0: Same phase

0,1: 4-step shift

1,0: 8-step shift

1,1: 16-step shift

Test 1 1 1 Test Data Inhibited command

* : Don’t Care

Note) The “PWM data set”, the “PWM Frequency set” and the “PWM phase set” commands are executed, asynchronously

to the PWM counter, thus the user’s command setting is executed after execution time, which is about 128/fosc if

{“f

PWM

=(fosc/2)/2”} is set up. During that execution time, the IC may execute an unexpected setting. For this

reason, it is recommended to make sure actual performance is the user’s practical application.

(2-1) Explanation of instruction code

(a) LED1 to 3 P WM Data Set

This instruction set the PWM luminance control Duty data. It sets up for every LED port.

LED1 PWM Data Set

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

0 0 0 D D D D D

LED2 PWM Data Set

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

0 0 1 D D D D D

LED3 PWM Data Set

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

0 1 0 D D D D D

D :DUTY

0,0,0,0,0 to 1,1,1,1,1

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NJU6060

Ver.2004-04-16

(b)

PWM Frequency set / OSC ON/OFF / Output port ON/OFF

This instruction set the PWM Frequency, Oscillator ON/OFF and Output port ON/OFF.

PWM Frequency set / OSC ON/OFF / Output port ON/OFF

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

0 1 1

f

PWM

OSC LED

1 LED

2 LED

3

PW M Frequency set

f

PWM

0 : fsys / 32 frequenc y(Default)

1 : fsys / 64 frequenc y

(fsys : S ystem clock = fosc / 2)

OSC ON/OFF

OSC 0 : Oscillator OFF( Default)

1 : Oscillator ON

Output port ON/OFF

LED1 to 3 0 : Output port OFF(Default)

1 : Output port ON

It sets up for every LED port.

(c) LED1 to 3 PWM Phase set

This instruction set the PWM wavefor m Phase of output LED ports.

LED1 PWM Phase set

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

1 0 0 * * * Phase

*: Don’t Care

LED2 PWM Phase set

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

1 0 1 * * * Phase

*: Don’t Care

LED3 PWM Phase set

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

1 1 0 * * * Phase

*: Don’t Care

D

1

D

0

Shift Phase Value

0 0 Same Phase

0 1 4-step shift

1 0 8-step shift

1 1 16-step shift

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NJU6060

Ver.2004-04-16

Example ) Set Output PWM waveform of LED1 to LED3 terminal, shown below:

- LED1 PWM Phase set D

1

=0, D

0

=0

- LED2 PWM Phase set D

1

=1, D

0

=0

- LED3 PWM Phase set D

1

=1, D

0

=1

- PWM Frequency set / OSC ON/OFF / Output port ON/OFF D

4

=0, D

3

=1, D

2

=1, D

1

=1, D

0

=1

- LED1 to 3 PWM Data Set

(

PWM

4,

PWM

3,

PWM

2,

PWM

1,

PWM

0

) = (1,0,0,0,0)

PW M Frequency (f

PWM

) = 195Hz(typ.)

LED1 terminal 1 17 18 32

LED2 terminal 1 17 18 32

LED3 terminal 1 17 18 32

8-steps 8-steps

(d) Maker Testing

Thi s i nstruc tio n i s using for device testing mode (only for ma ker).

If it's absolute necessary in the user's command sequence, the only one command data (1,1,1,0,0,0,0,0) to release the

test mode can be accepted.

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

1 1 1 Test Data

2

Internal

PWM counter

31 0 1 15 16 17 18 30 31 0 1

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NJU6060

Ver.2004-04-16

(3) Serial Interface

The NJU6060 interface with MPU by Serial Interface, control for LED.

Note1) Data is not concerned with the signal of CSb but is read into the internal shift register by the rising edge of CLK.

Note2) The contents of a shift register are read into the internal instruction d ecoder by the rising ed ge of CSb.

note3) An instruction and data should surely input 8 bits. In case of entering over than 8 bits data, valid data is last 8 bits

data.

(4) Reset Circuit

Reset Circuit ini tializes the LSI to the following status by using of the more 1µs reset si gnal into the RES termina l

Reset status using the RES terminal

1, f

PWM

0: (fosc/2)/32

2, OSC 0: Oscillation OFF

3, LED1 to 3 0: OFF

4, Phase 0,0: Same Phase

5, PWM data 0,0,0,0,0: 1/32

* D7 D6 D5 D4 D3 D2 D1 D0 *

CSb

SIO

CLK

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NJU6060

Ver.2004-04-16

! ABSOLUTE MAXIMUMN RATINGS

Ta=25

°C

PARAMETERS SYMBOL CONDITIONS RATINGS UNIT

VDD Pow e r Supply

V

DD

VDD terminal -0.3 to +6.0 V

Driver Off Break Down Voltage

V

offmax

LED1, LE D2, LED3 ter minals 7.0 V

Driver On Break Down Voltage

V

onmax

LED1, LE D2, LED3 ter minals 5.5 V

Input Voltage

V

IN1

CSb, DATA, CLK, RSTb, OSC

Terminals -0.3 to V

DD

+0.3 V

Power Dissipation

Pd

max

Ta=25°C 250 mW

Operating Temperature

T

opr

-40 to +85 °C

Storage Temperature

T

stg

-55 to +125 °C

Note1) V

SS

= 0V to all conditions

Note2) If the LSI was used out of the absolute maximum ratings, LSI is damaged completel y and the riliability beco me

poor. The LSI is used on the electrical characteristics is recommended strongly for normal operation.

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NJU6060

Ver.2004-04-16

! DC ELECTRICAL CHARACTERISTICS

V

DD

=2.4 to 5.5V, Ta=-40 to 85

°C

PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX.

Unit

V

DD

Powe r Supply

V

DD

2.4 5.5 V

Input “H” Lev el Voltage

V

IH

RSTb, CSb, CLK, DATA

0.8V

DD

V

DD

V

Input “L” Level Voltage

V

IL

RSTb, CSb, CLK, DATA

0 0.2V

DD

V

Input “H” Level Current

I

IH

RSTb, CSb, CLK, DATA,

V

IN

= V

DD

5.0

µA

Input “L” Level Current

I

IL

RSTb, CSb, CLK, DATA,

V

IN

=0V

-5.0

µA

Output Off Leak Current

I

OFFH

LED1, LE D2, LED3: V

O

=5.5V,

Output OFF

6.0

µA

Output “L” Level Vo ltage

V

OL

LED1, LE D2. LED3, I

O

=10mA

0.5 V

Oscillation Frequency

f

OSC

V

DD

=3V, R

OSC

=910kΩ,

T

a

=25°C

10.23 12.48 14.72 kHz

Reset “L” Level

Pulse Width

t

RW

RSTb

1.0

µs

Operating Current

I

DD

VDD=3V, PWM DUTY: 17/32,

Output terminal open,

R

OSC

=910kΩ, T

a

=25°C

6.0 12.0

µA

Note1): Input Terminal Structure

RSTb, CSb, CLK, DATA terminals LED1, LED2, LED3 terminals

V

DD

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NJU6060

Ver.2004-04-16

Relation between oscilla tion frequency and LCD frame frequency

Set Output PWM waveform of LED1 to LED3 terminal, shown below:

- LED1 PWM Phase set D

1

=0, D

0

=0

- LED2 PWM Phase set D

1

=1, D

0

=0

- LED3 PWM Phase set D

1

=1, D

0

=1

- PWM Frequency set / OSC ON/OFF / Output port ON/OFF D

4

=0, D

3

=1, D

2

=1, D

1

=1, D

0

=1

- LED1 to 3 PWM Data Set (

PWM

4,

PWM

3,

PWM

2,

PWM

1,

PWM

0

) = (1,0,0,0,0)

PW M Frequency (f

PWM

) = 195Hz(typ.)

LED1 terminal 1 17 18 32

LED2 terminal 1 17 18 32

LED3 terminal 1 17 18 32

8-steps 8-steps

Set Output PWM waveform of LED1 to LED3 terminal, shown below:

- LED1 PWM Phase set D

1

=0, D

0

=0

- LED2 PWM Phase set D

1

=1, D

0

=0

- LED3 PWM Phase set D

1

=1, D

0

=1

- PWM Frequency set / OSC ON/OFF / Output port ON/OFF D

4

=1, D

3

=1, D

2

=1, D

1

=1, D

0

=1

- LED1 to 3 PWM Data Set (

PWM

4,

PWM

3,

PWM

2,

PWM

1,

PWM

0

) = (1,0,0,0,0)

PW M Frequency (f

PWM

) = 97.5Hz(typ.)

LED1 terminal 1 17 18 32

LED2 terminal 1 17 18 32

LED3 terminal 1 17 18 32

8-steps 8-steps

3

32 1 2 16 17 18 19 31 32 1 2

Tsys

Tsys=1/fsys=2/fosc

(fsys: Internal System Clock Freqency)

3

32 1 2 16 17 18 19 31 32 1 2

Tsys

Tsys=2/fsys=4/fosc

(fsys: Internal System Clock Freqency)

fosc = 12.48kHz

fsys = fosc/ 2 = 6.24 kHz

f

PWM

=: fs

y

s / 32 = 195Hz

fosc = 12.48kHz

fsys = fosc/ 2 = 6.24 kHz

f

PWM

=

:

f

sys

/

64 =

97.

5Hz

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NJU6060

Ver.2004-04-16

! AC E LECTR ICAL CHARACTERISTIC S

VDD=2.4 to 5.5V, Ta=-40 to 85°C

PARAMETERS SYMBOL Terminal MIN. TYP. MAX. UNIT

“L” Level CLK Clock Width

t

WCLL

CLK

160 ns

“H” Level CLK Clock Width

t

WCLH

CLK

160 ns

Data Set-Up Ti me

t

DS

CLK, DATA

150 ns

Data Hold Time

t

DH

CLK, DATA

150 ns

CSb Set-Up Time

t

CS

CSb, CLK

160 ns

CSb Hold Time

t

CH

CSb, CLK

640 ns

CLK Wait Time

t

WCH

CSb

640 ns

Rising Time

t

r

15 ns

Falling Time

t

f

15 ns

Serial Input Timing

Note) All timing based on 20% and 80% of V

DD

voltage level.

CSb

CLK

DATA

t

CS

D7 D0

t

f

t

r

t

DS

t

DH

t

WCLL

t

WCLH

t

CH

t

WCH

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NJU6060

Ver.2004-04-16

! APPLICATION CI RCUIT

Resisto r Selection

R

LED

=

R

LED

: LED Current Control Resistor

V

LED

: LED Voltage

V

F

: LED Forward Voltage (@I

LED

)

V

OL

: Output “L” Level Voltage (@I

LED

)

I

LED

: LED Forward Current

Example) I

LED

= 10mA, V

LED

= 5.0V, V

F

= 2.0V(@I

LED

= 10mA), V

OL

=0.5V

R

LED

= = 250Ω

Note)

VF and VOL are depended on the situation. And decide the optimum values by the actual test when RLED is

selected.

[CAUTION]

The specifications on this databook are only

given for information , without any guarantee

as regards either mi stakes 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.

The products on this databook may not be

appropriate for use in certain equipment where

reliability is critical or where the products ma

y

be subjected to extreme conditions. Thus, you

should consult our sales office before using the

products in vehicle control equipment.

NJU6060

V

DD

RSTb

CPU CSb

CLK

DATA OSC

V

SS

LED1

LED2

LED3

V

LED

V

DD

V

SS

+ R

LED

R

LED

R

LED

R

OSC

V

LED

- V

F

- V

OL

I

LED

10mA

5.0V – 2.0V – 0.5V