4
Recommended Operating Conditions
Parameter
Supply Voltage
Symbol
V
DD
Min.
4.5
Typ.
5.0
Max.
5.5
Units
V
Electrical/Optical Characteristics over Operating Temperature Range
4.5 < V
DD
< 5.5 V (unless otherwise specified).
25˚C
[1]
Parameter
Blank Current
Input Current
Input Voltage High
Input Voltage Low
I
DD
4 Digits
20 dots/character
[2,3]
Symbol
I
DD
(blnk)
I
I
V
IH
V
IL
I
DD
(#)
–40
2.0
GND
110
130
Min.
Typ.
1.0
Max.
Max.
4.0
10
V
DD
0.8
160
Units
mA
µA
V
V
mA
“#” ON in all four
locations
Test Conditions
All Digits Blanked
V
IN
= 0 V to V
DD
V
DD
= 5.0 V
Notes:
1. V
DD
= 5.0 V.
2. Average I
DD
measured at full brightness. Peak I
DD
= 28/15 x Average I
DD
(#).
3. I
DD
(#) max. = 130 mA, 150˚C IC junction temperature and V
DD
= 5.5 V.
Optical Characteristics at 25˚C
[1]
V
DD
= 5.0 V at Full Brightness
AlGaAs Red HDLS-1414
Parameter
Average Luminous
Intensity per digit,
Character Average
Peak Wavelength
Dominant
Wavelength
[2]
Symbol
I
V
Min.
4.0
Typ.
12.7
Units
mcd
Test Conditions
“*” illuminated in all four digits.
19 dots ON per digit.
λ
PEAK
λ
D
645
637
nm
nm
AlGaAs Red HDLU-1414
Parameter
Average Luminous
Intensity per digit,
Character Average
Peak Wavelength
Dominant
Wavelength
[2]
Symbol
I
V
Min.
1.2
Typ.
3.1
Units
mcd
Test Conditions
“*” illuminated in all four digits.
19 dots ON per digit.
λ
PEAK
λ
D
645
637
nm
nm
HP [ AGILENT(HEWLETT-PACKARD) ]
