LED Control IC

W2RF004RM

1

LED Control IC

W2RF004RM

Most Suitable IC for Controlling LED

Effects within Applications

• Free-running PWM gradation control, with up to 1,024 levels, en-

ables the representation of beautiful fade-in and fade-out effects.

• CPU load can be reduced by controlling lighting gradation and speed.

• Up to 49 pieces of this IC can be connected on the same serial bus

communication line. Device group setting is also possible.

• Independant control of up to 9 Lines.

• Use with Omron’s W2RV005RM Constant Current IC to directly

drive multiple LED’s in series.

• RoHS Compliant

Ordering Information

Specifications

Note: 1. Take the power consumption and power dissipation rating

into consideration.

2. When implemented on a standard board (70 x 70 x 1.6 mm, Cu 3%,

Single-sided glass epoxy board). The value reduces at a rate of about

8.48 mW/

°C when the IC is used at Ta = 25°C or higher.

Recommended Operating Conditions

Note: 1. Take the timing characteristics into consideration.

Description

Model

LED Control IC

W2RF004RM

Item

Symbol

Rating

Supply Voltage

V

DD

-0.3 to 7.0 V

Input Voltage

V

IN

-0.3 to V

Communication Output

Voltage (SCL-O, SDA-O)

V

SOUT

-0.3 to V

Driving Output Voltage

V

DOUT

-0.3 to 20 V

Driving Output Current/pin

(See note 1)

I

DOUT

50 mA (when V

30 mA (when V

Power Dissipation

Pd

1.06 W (See note 2)

Operating Temperature

T

OPR

-20 to 85

°C

Storage Temperature

T

STG

-40 to 150

°C

Item

Symbol

Rating

Supply Voltage

V

DD

3.0 to 5.5 V

Input Voltage

V

IN

0 to V

Communication Output

Current (SCL-O, SDA-O)

I

SOUT

-10 to 10 mA

Communication Clock

Frequency (SCL-I)

f

SCL

Max. 5 MHz

(See note 1)

Item

Symbol

Condition

Spec.

Unit

Applicable

terminal

Min.

Typ.

Max.

High-level Input Voltage

V

IH

- - -

V

- - -

- - -

V

SDA-I, SCL-I, RST, INV,

ADRA0 to 2, ADRB0 to 2

Low-level Input Voltage

V

IL

- - -

- - -

- - -

V

V

High-level Communication

Output Voltage

V

SOH

I

V

- - -

- - -

V

SDA-O, SCL-O

Low-level Communication

Output Voltage

V

SOL

I

- - -

- - -

0.5

V

Driving Output Voltage 1

V

DO1

I

- - -

0.27

0.60

V

OUTA0 to 2

OUTB0 to 2

OUTC0 to 2

Driving Output Voltage 2

V

DO2

I

- - -

0.10

0.22

V

Driving Output Leakage Current

I

DOZ

V

- - -

- - -

1.0

μA

Operating Current Consumption

I

DD

Total Output: I

- - -

2.4

4.1

mA

V

DD