2

The wide angle emitter, HSDL-

4220, is compatible with the IrDA

SIR standard and can be used

with the HSDL-1000 integrated

SIR transceiver.

Absolute Maximum Ratings

Parameter

Symbol

Min.

Max.

Unit

Reference

Peak Forward Current

500

mA

[2], Fig. 2b

Duty Factor = 20%

Pulse Width = 100

µs

Average Forward Current

100

mA

[2]

DC Forward Current

100

mA

[1], Fig. 2a

Power Dissipation

260

mW

µA)

5V

Transient Forward Current (10

µs Pulse)

1.0

A

[3]

Operating Temperature

070

°C

Storage Temperature

-20

85

°C

LED Junction Temperature

110

°C

Lead Soldering Temperature

260 for

°C

[1.6 mm (0.063 in.) from body]

5 seconds

Notes:

1. Derate linearly as shown in Figure 4.

2. Any pulsed operation cannot exceed the Absolute Max Peak Forward Current as specified in Figure 5.

3. The transient peak current is the maximum non-recurring peak current the device can withstand without damaging the LED die and

the wire bonds.

Electrical Characteristics at 25

Parameter

Symbol

Min.

Typ.

Max.

Unit

Condition

Reference

Forward Voltage

1.30

1.50

1.70

V

Fig. 2a

2.15

Fig. 2b

Forward Voltage

∆V/∆T

-2.1

mV/

°CI

Fig. 2c

Temperature Coefficient

-2.1

Series Resistance

2.8

ohms

Diode Capacitance

40

pF

0 V, 1 MHz

Reverse Voltage

220

V

µA

Thermal Resistance,

R

θ

jp

110

°C/W

Junction to Pin

The package design of these

emitters is optimized for efficient

power dissipation. Copper

leadframes are used to obtain

better thermal performance than

the traditional steel leadframes.