DS8884A Datasheet, PDF (2/4 Pages) National Semiconductor (TI) – High Voltage Cathode Decoder/Driver

Absolute Maximum Ratings (Note 1)
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V_CC
7V
Input Voltage (Note 4)
V_CC
Segment Output Voltage
80V
Power Dissipation
600 mW
Transient Segment Output Current
(Note 5)
50 mA
Storage Temperature Range
b65 C to a150 C
Maximum Power Dissipation at 25 C
Molded Package
1714 mW
Derate molded package 13 71 mW C above 25 C
Operating Conditions
Min
Max
Supply Voltage (V_CC)
4 75
5 25
Temperature (T_A)
0
a70
Units
V
C
Electrical Characteristics (Notes 2 and 3)
Symbol
Parameter
Conditions
Min Max Units
V_IH
Logical ‘‘1’’ Input Voltage
V_CC e 4 75V
V_IL
Logical ‘‘0’’ Input Voltage
V_CC e 4 75V
I_IH
Logical ‘‘1’’ Input Current
V_CC e 5 25V V_IN e 2 4V
I_IL
Logical ‘‘0’’ Input Current
V_CC e 5 25V V_IN e 0 4V
I_CC
Power Supply Current
V_CC e 5 25V R_P e 2 8k All Inputs e 5V
V_Ia
Positive Input Clamp Voltage V_CC e 4 75V I_IN e 1 mA
V_Ib
Negative Input Clamp Voltage V_CC e 5V I_IN e b12 mA T_A e 25 C
DI_O
SEGMENT OUTPUTS
‘‘ON’’ Current Ratio
All Outputs e 50V I_OUT b eRef All Outputs
20
V
10
V
15
mA
b250 mA
40
mA
50
V
b1 5
V
09
11
I_{b ON}
Output b ‘‘ON’’ Current
V_CC e 5V V_OUT b e 50V
T_A e 25 C
R_P e 18 1k 0 15 0 25
mA
R_P e 7 03k 0 45 0 55
mA
R_P e 3 40k 0 90 1 10
mA
R_P e 2 80k 1 08 1 32
mA
I_CEX
Output Leakage Current
V_OUT e 75V
5
mA
V_BR
Output Breakdown Voltage
I_OUT e 250 mA
80
V
t_pd
Propagation Delay of Any
V_CC e 5V T_A e 25 C
Input to Segment Output
10
ms
Note 1 ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed They are not meant to imply that the devices
should be operated at these limits The table of ‘‘Electrical Characteristics’’ provides conditions for actual device operation
Note 2 Unless otherwise specified min max limits apply across the 0 C to a70 C temperature range for the DS8884A All typical values are for T_A e 25 C and
V_CC e 5V
Note 3 All currents into device pins shown as positive out of device pins as negative all voltages referenced to ground unless otherwise noted All values shown
as max or min on absolute value basis
Note 4 This limit can be higher for a current limiting voltage source
Note 5 In all applications transient segment output current must be limited to 50 mA This may be accomplished in DC applications by connecting a 2 2k resistor
from the anode-supply filter capacitor to the display anode or by current limiting the anode driver in multiplex applications
Typical Application
TL F 5847 – 4
2