2

Constant Current IC

W2RV005RM

Timing Characteristics (Ta = 25°C, VCC = 12V)

Engineering Data

Block Diagram

Terminal Designation

Note: Connect unused input pins to a power supply (voltage equal to

V

Functions

Output Current vs. Input Resistance

Note: The figures in the table show theoretical values obtained when

one end of R

Item

Symbol

Condition

Spec.

Unit

Applicable

terminal

Min.

Typ.

Max.

ON output propagation time

t

ON

R

- - -

1.0

- - -

μS

IN1 to 3

OUT1 to 3

OFF output propagation time

t

OFF

R

- - -

0.4

- - -

μS

IN2

IN3

GND

IN1

Thermal

shutdown

OUT2

OUT3

VCC

OUT1

Constant current

circuit 1

Constant current

circuit 2

Constant current

circuit 3

Terminal Number

Terminal Name

Description

1

IN1

Input pin 1

2

IN2

Input pin 2

3

IN3

Input pin 3

4

GND

Ground

5

OUT3

Output pin 3

6

OUT2

Output pin 2

7

OUT1

Output pin 1

8

V

CC

Power Supply

IN

OUT

GND

VCC

Control output

R

IN

I

IN

12V

I

OUT

W2RV005RM

Control IC, CPU, etc.

TTL

C-MOS

Open collector

Open drain

Control output

Input current

I

IN

Output current

I

OUT

Logic H or open

OFF

OFF

Logic L

ON

ON

30

30

40

50

20

20

10

10

0

0

Ta = 25ºC

Output current

I

Input Resistance

R

5

29.6

10

14.6

15

9.59

20

7.12

25

5.65

30

4.67