3
Absolute Maximum Ratings
Description
Symbol
Min.
Max.
Unit
Storage Temperature, Ambient
HDSP-078x/-079x/-088x
HDSP-098x
Operating Temperature, Ambient[1]
Supply Voltage[2]
TS
-65
-55
-55
-0.5
-0.5
-0.5
+125
+100
+100
+7.0
VCC
°C
TA
VCC
V, VDP, VE
°C
V
V
Voltage Applied to Input Logic, dp and Enable Pins
Voltage Applied to Blanking Input[2]
I
VR
VCC
V
Wave Solder Temperature at 1.59 mm (0.063 inch)
below Body, max. 3 seconds
250
°C
Recommended Operating Conditions
Description
Supply Voltage[2]
Operating Temperature, Ambient[1]
Enable Pulse Width
Time Data Must Be Held Before Positive
Transition of Enable Line
Symbol
Min.
4.5
–55
100
50
Nom.
5.0
Max.
5.5
+100
Unit
V
°C
nsec
nsec
VCC
TA
tW
tSETUP
Time Data Must Be Held After Positive
Transition of Enable Line
Enable Pulse Rise Time
tHOLD
tTLH
50
nsec
1.0
msec
Optical Characterstics at TA = 25°C, VCC = 5.0 V
Device
Description
Symbol
Min.
Typ.
Max.
Unit
HDSP-078x Series
Luminous Intensity per LED
(Digit Average)[3,4]
IV
65
140
µcd
Peak Wavelength
Dominant Wavelength[5]
Luminous Intensity per LED
(Digit Average)[3,4]
Peak Wavelength
Dominant Wavelength[5]
Luminous Intensity per LED
(Digit Average)[3,4]
Peak Wavelength
Dominant Wavelength[5,6]
λPEAK
λd
635
626
620
nm
nm
µcd
HDSP-079x Series
HDSP-088x Series
HDSP-098x Series
IV
260
215
298
λPEAK
λd
635
626
490
nm
nm
µcd
IV
λPEAK
λd
583
585
1100
nm
nm
µcd
Luminous Intensity per LED
(Digit Average)[3,4]
IV
Peak Wavelength
Dominant Wavelength
λPEAK
λd
568
574
nm
nm
Notes:
1. The nominal thermal resistance of a display mounted in a socket that is soldered onto a printed circuit board is
RθJA = 50°C/W/device. The device package thermal resistance is RθJ-PIN = 15°C/W/device. The thermal resistance device pin-to-
ambient through the PC board should not exceed 35°C/W/device for operation up to TA = +100°C.
2. Voltage values are with respect to device ground, pin 6.
3. These displays are categorized for luminous intensity with the intensity category designated by a letter code located on the back of
the display package. Case temperature of the device immediately prior to the light measurement is equal to 25°C.