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National Semiconductor Electronic Components Datasheet

MM74C918 Datasheet

Dual CMOS 30V Relay Driver

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MM74C918 pdf
November 1990
MM74C908 MM74C918 Dual CMOS 30V Relay Driver
General Description
Features
The MM74C908 and MM74C918 are general purpose dual
high voltage drivers each capable of sourcing a minimum of
250 mA at VOUT e VCC b 3V and TJ e 65 C
The MM74C908 and MM74C918 consist of two CMOS
NAND gates driving an emitter follower Darlington output to
achieve high current drive and high voltage capabilities In
the ‘‘OFF’’ state the outputs can withstand a maximum of
b30V across the device These CMOS drivers are useful in
interfacing normal CMOS voltage levels to driving relays
regulators lamps etc
Y Wide supply voltage range
Y High noise immunity
Y Low output ‘‘ON’’ resistance
Y High voltage
Y High current
3V to 18V
0 45 VCC (typ )
8X (typ )
b30V
250 mA
Connection Diagrams
Dual-In-Line Package
MM74C908
Order Number MM74C908
Top View
Dual-In-Line Package
MM74C918
TL F 5912 – 1
Order Number MM74C918
Top View
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 5912
TL F 5912 – 2
RRD-B30M105 Printed in U S A


National Semiconductor Electronic Components Datasheet

MM74C918 Datasheet

Dual CMOS 30V Relay Driver

No Preview Available !

MM74C918 pdf
Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Voltage at any Input Pin
Voltage at any Output Pin
b0 3V to VCC a0 3V
32V
Operating Temperature Range
MM74C908 MM74C918
b40 C to a85 C
Operating VCC Range
Absolute Maximum VCC
ISOURCE
Storage Temperature Range (TS)
Lead Temperature (TL)
(Soldering 10 seconds)
4V to 18V
19V
500 mA
b65 C to a150 C
260 C
Power Dissipation (PD)
Refer to Maximum Power
Dissipation vs Ambient
Temperature Graph
DC Electrical Characteristics Min Max limits apply across temperature range unless otherwise noted
Symbol
Parameter
CMOS TO CMOS
VIN(1)
Logical ‘‘1’’ Input Voltage
VIN(0)
Logical ‘‘0’’ Input Voltage
IIN(1)
IIN(0)
ICC
Logical ‘‘1’’ Input Current
Logical ‘‘0’’ Input Current
Supply Current
Output ‘‘OFF’’ Voltage
CMOS LPTTL INTERFACE
VIN(1)
Logical ‘‘1’’ Input Voltage
MM74C908 MM74C918
VIN(0)
Logical ‘‘0’’ Input Voltage
MM74C908 MM74C918
OUTPUT DRIVE
VOUT
Output Voltage
RON
Output Resistance
Output Resistance
Coefficient
iJA Thermal Resistance
MM74C908 MM74C918
Conditions
VCC e 5V
VCC e 10V
VCC e 5V
VCC e 10V
VCC e 15V VIN e 15V
VCC e 15V VIN e 0V
VCC e 15V Outputs Open Circuit
VIN e VCC IOUT e b200 mA
VCC e 4 75V
VCC e 4 75V
IOUT e b300 mA VCC t 5V TJ e 25 C
IOUT e b250 mA VCC t 5V TJ e 65 C
IOUT e b175 mA VCC t 5V TJ e 150 C
IOUT e b300 mA VCC t 5V TJ e 25 C
IOUT e b250 mA VCC t 5V TJ e 65 C
IOUT e b175 mA VCC t 5V TJ e 150 C
(Note 3)
(Note 3)
Min
35
80
b1 0
VCC b 1 5
VCCb2 7
VCCb3 0
VCCb3 15
Typ
0 005
b0 005
0 05
b30
VCCb1 8
VCCb1 9
VCCb2 0
60
75
10
0 55
100
45
Max
15
20
10
15
08
90
12
18
0 80
110
55
Units
V
V
V
V
mA
mA
mA
V
V
V
V
V
V
X
X
X
%C
CW
CW
AC Electrical Characteristics
Symbol
Parameter
Conditions
Min Typ Max Units
tpd1
Propagation Delay
VCC e 5V RL e 50X
to a Logical ‘‘1’’
CL e 50 pF TA e 25 C
VCC e 10V RL e 50X
CL e 50 pF TA e 25 C
tpd0
Propagation Delay
VCC e 5V RL e 50X
to a Logic ‘‘0’’
CL e 50 pF TA e 25 C
VCC e 10V RL e 50X
CL e 50 pF TA e 25 C
CIN
Input Capacitance
(Note 2)
AC Parameters are guaranteed by DC correlated testing
150 300
65 120
2 0 10
4 0 20
50
ns
ns
ms
ms
pF
Note 1 ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed Except for ‘‘Operating Temperature Range’’
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 Capacitance is guaranteed by periodic testing
Note 3 iJA measured in free air with device soldered into printed circuit board
2


Part Number MM74C918
Description Dual CMOS 30V Relay Driver
Maker National Semiconductor
Total Page 6 Pages
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