DS75150 Dual Line Driver General Description Features The DS75150 is a dual monolithic line driver designed to satisfy the requirements of the standard interface between data terminal equipment and data communication equipment as defined by EIA Standard RS-232-C. A rate of 20,000 bits per second can be transmitted with a full 2500 pF load. Other applications are in data-transmission systems using relatively short single lines, in level translators, and for driving MOS devices. The logic input is compatible with most TTL and LS families. Operation is from −12V and +12V power supplies. n Withstands sustained output short-circuit to any low impedance voltage between −25V and +25V n 2 µs max transition time through the −3V to +3V transition region under full 2500 pF load n Inputs compatible with most TTL and LS families n Common strobe input n Inverting output n Slew rate can be controlled with an external capacitor at the output n Standard supply voltages: ± 12V Schematic and Connection Diagrams Dual-In-Line Package DS005794-2 Positive Logic C = AS Top View Order Number DS75150M See NS Package Number M08A DS005794-1 Component values shown are nominal. 1/2 of circuit shown © 1998 National Semiconductor Corporation DS005794 www.national.com DS75150 Dual Line Driver May 1998 Absolute Maximum Ratings (Note 2) Operating Conditions If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (+VCC) Supply Voltage (−VCC) Input Voltage (VI) Output Voltage (VO) Operating Ambient Temperature Range (TA) Supply Voltage +VCC 15V 15V Supply Voltage −VCC Input Voltage 15V Applied Output Voltage +25V Storage Temperature Range −65˚C to +150˚C Maximum Power Dissipation (Note 1) at 25˚C SO Package 655 mW Lead Temperature (Soldering, 4 sec.) 260˚C Min 10.8 −10.8 0 Max 13.2 −13.2 +5.5 ± 15 Units V V V V 0 +70 ˚C Note 1: Derate SO package 8.01 mW/˚C above 25˚C. DC Electrical Characteristics (Notes 3, 4, 5, 6) Symbol Parameter Conditions Min VIH High-Level Input Voltage (Figure 1 ) VIL Low-Level Input Voltage VOH High-Level Output Voltage (Figure 2) +VCC = 10.8V,−VCC = −13.2V, VIL = 0.8V, RL = 3 kΩ to 7 kΩ (Figure 2) VOL Low-Level Output Voltage IIH High-Level Input Current IIL Low-Level Input Current Short-Circuit Output Current Supply Current From +VCC, High-Level Output −ICCH Supply Current From −VCC, High-Level Output +ICCL Supply Current From +VCC, Low-Level Output −ICCL Supply Current From −VCC, Low-Level Output V 0.8 5 Units 8 V V −8 −5 V 1 10 µA +VCC = 13.2V, −VCC = −13.2V, VI = 2.4V, (Figure 3) +VCC = 13.2V,−VCC = −13.2V, Strobe Input 2 20 µA Data Input −1 −1.6 mA Strobe Input −2 −3.2 mA VO = 25V VO = −25V 2 5 mA −3 −6 mA 15 30 mA −15 −30 mA 10 22 mA −1 −10 mA 8 17 mA −9 −20 mA +VCC = 13.2V,−VCC = −13.2V, (Figure 4), (Note 5) +ICCH Max +VCC = 10.8V,−VCC = −10.8V, VIH = 2V, RL = 3 kΩ to 7 kΩ (Figure 1) +VCC = 13.2V,−VCC = −13.2V, Data Input VI = 2.4V, (Figure 3) VI = 0.4V, (Figure 3) +VCC = 13.2V, −VCC = −13.2V, VI = 0.4V, (Figure 3) IOS Typ 2 VO = 0V, VI = 3V VO = 0V, VI = 0V = −13.2V, VI = 0V, +VCC = 13.2V, −VCC RL = 3 kΩ, TA = 25˚C, (Figure 5) +VCC = 13.2V, −VCC = −13.2V, VI = 0V, RL = 3 kΩ, TA = 25˚C, (Figure 5) +VCC = 13.2V, −VCC = −13.2V, VI = 3V, RL = 3 kΩ, TA = 25˚C, (Figure 5) +VCC = 13.2V, −VCC = −13.2V, VI = 3V, RL = 3 kΩ, TA = 25˚C, (Figure 5) Note 2: “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 3: Unless otherwise specified min/max limits apply across the 0˚C to +70˚C range for the DS75150. All typical values are TA = 25˚C and +VCC = 12V, −VCC = −12V. Note 4: All current 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 5: Only one output at a time should be shorted. Note 6: The algebraic convention where the most-positive (least-negative) limit is designated as maximum is used in this data sheet for logic levels only, e.g., when −5V is the maximum, the typical value is more-negative voltage. www.national.com 2 AC Electrical Characteristics (+VCC = 12V, −VCC = −12V, TA = 25˚C) Symbol tTLH Parameter Transition Time, Low-to-High Level Output tTHL Transition Time, High-to-Low Level Output tTLH Transition Time, Low-to-High Conditions CL = 2500 pF, RL = 3 kΩ to 7 kΩ, (Figure 6) CL = 2500 pF, RL = 3 kΩ to 7 kΩ, Min Typ Max Units 0.2 1.4 2 µs 0.2 1.5 2 µs (Figure 6) CL = 15 pF, RL = 7 kΩ, (Figure 6) 40 ns CL = 15 pF, RL = 7 kΩ, (Figure 6) 20 ns CL = 15 pF, RL = 7 kΩ, (Figure 6) 60 ns CL = 15 pF, RL = 7 kΩ, (Figure 6) 45 ns Level Output tTHL Transition Time, High-to-Low Level Output tPLH Propagation Delay Time Low-to-High Level Output tPHL Propagation Delay Time High-to-Low Level Output DC Test Circuits DS005794-3 FIGURE 1. VIH, VOL DS005794-4 Each input is tested separately. FIGURE 2. VIL, VOH DS005794-5 When testing IIH, the other input is at 3V; when testing IIL, the other input is open. FIGURE 3. IIH, IIL 3 www.national.com DC Test Circuits (Continued) DS005794-6 IOS is tested for both input conditions at each of the specified output conditions. FIGURE 4. IOS DS005794-7 FIGURE 5. ICCH+, ICCH−, ICCL+, ICCL− AC Test Circuit and Switching Waveforms DS005794-8 DS005794-9 Note 7: The pulse generator has the following characterstics: duty cycle ≤ 50%, ZOUT ≅ 50Ω. Note 8: CL includes probe and jig capacitance. FIGURE 6. www.national.com 4 Typical Performance Characteristics Output Current vs Applied Output Voltage DS005794-10 FIGURE 7. 5 www.national.com DS75150 Dual Line Driver Physical Dimensions inches (millimeters) unless otherwise noted SO Package (M) Order Number DS75150M NS Package Number M08A 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: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or sysdevice or system whose failure to perform can be reatems which, (a) are intended for surgical implant into sonably expected to cause the failure of the life support the body, or (b) support or sustain life, and whose faildevice or system, or to affect its safety or effectiveness. ure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 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