Sharp IS474 Datasheet

IS474

IS474

Linear Output Type OPIC
Light Detector

Features

■

1. Linear output conforming to illuminance
(50 lx to 50000 lx)

2. Conforming to required visual sensitivity characteristics

by means of built-in filter
Peak sensitivity wavelength : TYP. 550 nm

3. Not dependent on kind of light source such as

incandescent lamp and fluorescent lamp

4. Easy-to-mount holder-integral side view type

Applications

■

1. TV sets

2. CRTs of personal computers and others

Outline Dimensions

■

2.0114.0

Type number

Internal connection diagram

1.4

2-R0.3

9.0
Detector center

6.0

2.4

JAPAN

1234
PPP

* Unspecified tolerance : ± 0.2
* ( ) : Reference dimensions
* Lead pitch (P) : 1.27 (at lead root)
* Lead deflection angle θ : ± 10˚ MAX.

Production country

0.28

5.8

1.5

+ 0.1

2-0.5

2-1.0

13

16.7± 0.1

- 0.2

1.7

0.5 2.0

1.0

2.0

4.5

2.0

2.75

2.54

(Unit : mm)

θθ

1

Constant voltage circuit

Photodiode A

2

Photodiode B

Current amp.

3

1 Vcc
3 GND 4 NC

* OPIC (Optical IC) is a trademark of SHARP corporation. An OPIC consists of

a light-detecting element and signal-processing circuit integrated onto a single chip.

2 Io

1.5
4-0.4

+0.2

- 0.1

■

Absolute Maximum Ratings

(Ta=25˚C)

Parameter Symbol Rating Unit
Supply voltage
Output current
Output voltage

V

I

V
Power dissipation
Operating temperature
Storage temperature

*1

Soldering temperature

*1 For MAX. 3 seconds at the position shown in the right drawing

“ In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that occur in equipment using any of SHARP's devices, shown in catalogs,

data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device.”

T

T

T

-0.5 to 8

CC

O

O

-10

- 0.5 to V

P 150 mW

-25to +85

opr

-40to +85

stg

sol

260 ˚C

V

mA

V

CC

˚C

Soldering area

˚C

Recommended Operating Conditions

■

Parameter Symbol MIN. MAX. Unit
Supply voltage
Illuminance
Output voltage
Operating temperature

*1 CIE standard light source A (tungsten lamp)

■

Electro-optical Characteristics

V

E
V

T

4.5 5.5 V

CC

*1

100

V

0VCC-1.5 V

O

-10 70 ˚C

opr

50 000

lx

Parameter Symbol MIN. TYP. MAX. UnitConditions
Supply current
Output current 1
Output current 2
Output current ratio 1
Output current 3
Output current 4
Output current ratio 2
Dark output current
Peak sensitivity wavelength
Response time (rise)
Response time (fall)

RI

RI

Icc
I
I

I
I

Iod
λ p

O1

O2

O1

O3

O4

O2

t

r

t

f

*1

Ev= 0 lx

*1

Ev= 100 lx

*1

Ev= 1000 lx

/Io

Io

2

*2

Ev= 100 lx

*3

Ev= 100 lx
Io3/Io

*1

Ev= 0 lx

-

= 3.3kΩ

R

L

= 3.3kΩ

R

L

0.2

0.55

- 6.0

-60

1

4

9.0

(

0.9

-10

-100
10

-

-11

-

-10

)

(

)

1.1

-

-10

(

550

12
30

)

-

-

-

Ev= 0 lx

*4

Power source
fluctuation removability

PSRR1

PSRR2

= 3.3kΩ

R

L

at 10kHz
Ev= 0 lx

= 3.3kΩ

R

L

-

48

-

39

at 100kHz
Ev=1000 lx

PSRR3

= 3.3kΩ

R

L

-

11

at 10kHz

*1 Illuminance by CIE standard light source A (tungsten lamp)
*2 Illuminance by incandescent lamp
*3 Illuminance by fluorescent lamp
*4 Power source fluctuation removability PSRR is defined according to the following formula.

PSRR =201og

Vcc ripple voltage

Vo ripple voltage

Test circuit 1 Test circuit 2 Test circuit 3

Ip=660nm

Vin

tr,tf=0.01µ s
Zo=50Ω

Vin

1.0V

IS474

T

IS474

Vcc

Io

GND

A

5V

Vcc

Ev

IS474

A

Io

GND

Ev

5V

(Vcc=5V, Ta=25˚C )

Test circuit

1.0

-14

- 140

(

1.3

- 500

mA

µ A
µ A

11

-

-

-

µ A
µ A

)

­nA
nm

-

µs

-

µs

-

-

dB

-

dB

-

dB

Vcc

Io

Ro

GND

3.3kΩ

T=500µ s
Adjust Vin so that Vo waveform
may be of 1.0V amplitude

1
2
2

­2
2

­2

­3
3

-

-

-

CRT

Vo

90%

IS474

Vcc

0V

10%

tr tf