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 LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. 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