 2000 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA

HDSP200LP/1LP/2LP/3LP

www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)

OSRAM Opto Semiconductors GmbH & Co. OHG • Regensburg, Germany

www.osram-os.com • +49-941-202-7178

2

April 4, 2000-11

DESCRIPTION (continued)

imum display intensity or pulse width modulated to achieve

intensity control and reduce power consumption.

In the normal mode of operation, input data for digit four, column

one is loaded into the seven on-board shift register locations one

through seven. Column one data for digits 3, 2, and 1 is shifted

into the display shift register locations. Then column one input is

enabled for an appropriate period of time, T. A similar process is

repeated for columns 2, 3, 4, and 5. If the decode time and load

data time into the shift register is t, then with five columns, each

column of the display is operating at a duty factor of:

T+t, allotted to each display column, is generally chosen to

provide the maximum duty factor consistent with the mini-

mum refresh rate necessary to achieve a flicker free display.

For most strobed display systems, each column of the display

should be refreshed (turned on) at a minimum rate of 100

times per second.

With columns to be addressed, this refresh rate then gives a value

for the time T+t of: 1⁄ [5 x (100)] =2.0 msec. If the device is oper-

ated at 5.0 MHz clock rate maximum, it is possible to maintain t

For short display strings, the duty factor will then approach 20%.

Maximum Ratings

Operating Temperature Range .......................... –40

°C to +85°C

Storage Temperature Range............................ –40

°C to +100°C

Maximum Solder Temperature 0.063" (1.59 mm)

below Seating Plane, t

°C

Maximum Allowable Power Dissipation

Note:

Figure 1. Timing Characteristics

DF

T

5T

t

+

()

--------------------

=

CLOCK

DATA IN

DATA OUT

2.4 V

0.4 V

2.0 V

0.8 V

2.0 V

0.8 V

2.0 V

0.8 V

DISPLAY

ON (illuminated)

OFF (not illuminated)

90%

10%

Figure 2. Maximum Allowable Power Dissipation

vs. Temperature

AC Electrical Characteristics

Note:

Cleaning the Displays

IMPORTANT—Do not use cleaning agents containing alcohol

of any type with this display. The least offensive cleaning solu-

tion is hot D.l. water (60

°C) for less than 15 minutes. Addition

of mild saponifiers is acceptable. Do not use commercial dish-

washer detergents.

For post solder cleaning use water or non-alcohol mixtures

formulated for vapor cleaning processing or non-alcohol mix-

tures formulated for room temperature cleaning. Nonalcohol

vapor cleaning processing for up to two minutes in vapors at

boiling is permissible. For suggested solvents refer to App-

note 19 at www.infineon.com/opto.

Symbol

Description

Min.

Units

Fig.

Setup Time

50

—

ns

1

Hold Time

25

—

ns

1

Clock Width

Low

75

—

ns

1

Clock Width

High

75

—

ns

1

Clock

Frequency

0

5.0

MHz

1

Clock Transi-

tion Time

—

200

ns

1

Propagation

Delay Clock to

Data Out

—

125

ns

1

120

100

80

60

40

20

0

-20

-40

-60

0.0

0.2

0.4

0.6

0.8

1.0

Tamb - Ambient Temperature - °C

Socket Thermal

Resistance

Tj(Max) = 100°C

0°C/W

10°C/W

20°C/W

40°C/W