Panasonic LN671 Datasheet

Infrared Light Emitting Diodes

LN671

GaAlAs Infrared Light Emitting Diode

Light source for distance measuring systems

5.3 max.

5.0±0.1

2.54±0.1

43

Unit : mm

1.8±0.3

0.8±0.2

Features

High-power output, high-efficiency : PO = 10 mW (typ.)
Fast response and high-speed modulation capability :

t

, tf = 30 ns(typ.)

r

Small plastic package

Absolute Maximum Ratings (Ta = 25˚C)

Parameter Symbol Ratings Unit

Power dissipation P
Forward current (DC) I
Pulse forward current I
Reverse voltage (DC) V
Operating ambient temperature
Storage temperature T

*

f = 100 Hz, Duty cycle = 0.1 %

D
F

*

FP

R

T

opr

stg

130 mW

70 mA

1A
3V

–25 to +85 ˚C

–30 to +100 ˚C

Epin ø3.2

1.0±0.3 1.0±0.1

4.0±0.1

13.5±0.1

4-0.6

4-0.5±0.15

1.0±0.1 1.0±0.3

12

10˚

10˚

5˚

5˚

10˚

10˚

4.3 max.

+0.1
–0.2

+0.1

0.2

–0.05

1: Anode
2: Common Cathode
3: NC
4: Common Cathode

Electro-Optical Characteristics (Ta = 25˚C)

Parameter Symbol Conditions min typ max Unit

Radiant power P
Peak emission wavelength λ
Spectral half band width ∆λ IF = 50mA 50 nm
Forward voltage (DC) V
Reverse current (DC) I
Rise time t
Fall time t
Half-power angle θ

IF = 50mA 6 10 mW

O

IF = 50mA 880 nm

P

IF = 50mA 1.4 1.8 V

F

VR = 3V 10 µA

R

I

r
f

= 50mA 30 ns

FP

I

= 50mA 30 ns

FP

The angle in which radiant intencity is 50%

50 deg.

1

LN671 Infrared Light Emitting Diodes

I

— Ta

120

100

(mA)

F

80

60

40

20

Allowable forward current I

0
– 25

F

0 20406080100

Ambient temperature Ta (˚C )

∆P

— I

O

3

10

O

2

10

10

1

(2)

FP

(1) tw = 10µs
f = 100Hz
(2) DC
Ta = 25˚C

(1)

I

— Duty cycle

FP

2

10

10

(A)

FP

1

–1

10

–2

Pulse forward current I

10

–3

10

10

–1

–2

10

Duty cycle (%)

V

F

(V)

F

2.2

1.8

1.4

1

— Ta

tw = 10µs
Ta = 25˚C

10 10

= 50mA

I

F

3

10

2

10

(mA)

FP

10

1

–1

10

Pulse forward current I

–2

10

2

0

10

O

1

I

— V

FP

13524

FP

t

w

f = 100Hz
Ta = 25˚C

= 10µs

Pulse forward voltage VFP (V)

∆P

— Ta

O

IF = 50mA

Relative radiant power ∆P

–1

10

–2

10

110

2

10

10

Pulse forward current IFP (mA)

λ

— Ta

920

900

(nm)

P

880

860

840

P

IF = 50mA

Peak emission wavelength λ

820

– 40 0 40 80 120

Ambient temperature Ta (˚C )

Forward voltage V

1.0

3

10

0.6

4

– 40 0 40 80 120

Ambient temperature Ta (˚C )

Spectral characteristics

100

80

60

40

Relative radiant intensity (%)

20

0

800 850 900 950 1000 1050

750

I

= 50mA

F

Ta = 25˚C

Relative radiant power ∆P

–1

10

– 40 0 40 80

Ambient temperature Ta (˚C )

Directivity characteristics

0˚ 10˚ 20˚

100

90
80
70
60
50

40
30

Relative radiant intensity (%)

20

30˚

40˚

50˚

60˚
70˚

80˚
90˚

Wavelength λ (nm)

2