NSC DS3686 Dual positive voltage relay driver Datasheet

DS3686 Dual Positive Voltage Relay Driver
General Description
The DS3686 is a high voltage/current positive voltage relay
driver having many features not available in present relay
drivers.
PNP inputs provide both TTL/LS compatibility and high input impedance for low input loading.
Output leakage is specified over temperature at an output
voltage of 54V. Minimum output breakdown (ac/latch breakdown) is specified over temperature at 5 mA. This clearly
defines the actual breakdown of the device since the circuit
has incorporated in it an internal reference which does not
allow output breakdown latching found in existing relay drivers. Additionally, this internal reference circuit feature will
eliminate the need in most cases of an external clamping
(inductive transient voltage protection) diode. When the output is turned ‘‘OFF’’ by input logic conditions the resulting
inductive voltage transient seen at the output is detected by
an internal zener reference. The reference then momentarily activates the output transistor long enough so that the
relay energy is discharged. This feature eliminates the need
of external circuit protection components and insures output
transistor protection.
The outputs are Darlington connected transistors, which allow high current operation at low internal VCC current
levelsÐbase drive for the output transistor is obtained from
the load in proportion to the required loading conditions.
Typical VCC power with both outputs ‘‘ON’’ is 90 mW.
The circuit also features output transistor protection if the
VCC supply is lost by forcing the output into the high impedance ‘‘OFF’’ state with the same breakdown levels as when
VCC was applied.
Features
Y
Y
Y
Y
Y
Y
Y
Y
TTL/LS/CMOS compatible inputs
High impedance inputs (PNP’s)
High output voltage breakdown (65V typ)
High output current capability (300 mA max)
Internal protection circuit eliminates need for output
protection diode
Output breakdown protection if VCC supply is lost
Low VCC power dissipation (90 mW (typ) both outputs
‘‘ON’’)
Voltage and current levels compatible for use in telephone relay applications
Connection Diagrams
Metal Can Package
Dual-In-Line Package
TL/F/5822 – 1
Top View
Pin 4 is in electrical contact with the case
TL/F/5822 – 2
Order Number DS3686H
See NS Package Number H08C
Truth Table
Top View
Order Number DS3686J-8 or DS3686N
See NS Package Number J08A or N08E
Positive logic: AB e X
A
B
Output X
0
1
0
1
0
0
1
1
1
1
1
0
Logic ‘‘0’’ output ‘‘ON’’
Logic ‘‘1’’ output ‘‘OFF’’
C1995 National Semiconductor Corporation
TL/F/5822
RRD-B30M105/Printed in U. S. A.
DS3686 Dual Positive Voltage Relay Driver
April 1990
Absolute Maximum Ratings (Note 1)
Maximum Power Dissipation* at 25§ C
Cavity Package
Molded Package
TO-5 Package
Lead Temperature (Soldering, 4 seconds)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage
Input Voltage
Output Voltage
Storage Temperature Range
7V
15V
56V
1133 mW
1022 mW
787 mW
260§ C
*Derate cavity package 7.6 mW/§ C above 25§ C; derate molded package 8.2
mW/§ C above 25§ C; derate TO-5 package 5.2 mW/§ C above 25§ C.
b 65§ C to a 150§ C
Operating Conditions
Supply Voltage, VCC
Temperature, TA
Min
4.75
0
Max
5.25
g 70
Units
V
§C
Electrical Characteristics (Notes 2 and 3)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
0.01
40
mA
0.8
V
Logical ‘‘0’’ Input Current
VCC e Max, VIN e 0.4V
b 150
b 250
mA
Input Clamp Voltage
VCC e 5V, ICLAMP e b12 mA, TA e 25§ C
b 1.0
b 1.5
V
VOH
Output Breakdown
VCC e Max, VIN e 0V, IOUT e 5 mA
IOH
Output Leakage
VCC e Max, VIN e 0.4V, VOUT e 54V
0.5
250
mA
VOL
Output ON Voltage
VCC e Min,
VIN e 2.4V
IOL e 100 mA
0.85
1.0
V
IOL e 300 mA
1.0
1.2
V
VIH
Logical ‘‘1’’ Input Voltage
RL e 180X, VL e 54V, VO s 2.5V
IIH
Logical ‘‘1’’ Input Current
VCC e Max, VIN e 5.5V
VIL
Logical ‘‘0’’ Input Voltage
RL e 180X, VL e 54V, VO s 53.8V
IIL
VCD
DS3686
2.0
56
V
65
V
ICC(1)
Supply Current (Both Drivers)
VCC e Max, VIN e 0V, Outputs Open
2
4
mA
ICC(0)
Supply Current (Both Drivers)
VCC e Max, V IN e 3V, Outputs Open
18
28
mA
tPD0
Propagation Delay to a Logical ‘‘0’’
(Output Turn ON)
CL e 15 pF, VL e 10V, RL e 50X
TA e 25§ C, VCC e 5V
50
ns
tPD1
Propagation Delay to a Logical ‘‘1’’
(Output Turn OFF)
CL e 15 pF, VL e 10V, RL e 50X
TA e 25§ C, VCC e 5V
1
ms
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: Unless otherwise specified min/max limits apply across the 0§ C to a 70§ C range for the DS3686. All typicals are given for VCC e 5V and TA e 25§ C.
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.
2
Schematic Diagram
TL/F/5822 – 3
AC Test Circuit and Switching Time Waveforms
TL/F/5822 – 4
Note 1: The pulse generator has the following characteristics: PRR e 100 kHz, 50% duty cycle, ZOUT e 50X, tr e tf s 10 ns.
Note 2: CL includes probe and jig capacitance.
TL/F/5822 – 5
3
Physical Dimensions inches (millimeters)
Metal Can Package (H)
Order Number DS3686H
NS Package Number H08C
4
Physical Dimensions inches (millimeters) (Continued)
Ceramic Dual-In-Line Package (J)
Order Number DS3686J-8
NS Package Number J08A
5
DS3686 Dual Positive Voltage Relay Driver
Physical Dimensions inches (millimeters) (Continued)
Molded Dual-In-Line Package (N)
Order Number DS3686N
NS Package Number N08E
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