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| LT1030 Quad Low Power Line Driver FEATURES s s s s s s s s DESCRIPTION The LT (R) 1030 is an RS232 line driver that operates over a 5V to 15V range on low supply current and can be shut down to zero supply current. Outputs are fully protected from externally applied voltages of 30V by current limiting. Since the output swings to within 200mV of the positive supply and 1V of the negative supply, power supply needs are minimized. A major advantage of the LT1030 is the high impedance output state when off or powered down, which allows several different drivers on the same bus. Our RS232 product line includes other high performance devices. The LT1039 is a triple low power driver/receiver with shutdown that can be powered from a 5V supply. The LT1080 is a 5V powered dual driver/receiver with on-chip 9V power generator and shutdown. , LTC and LT are registered trademarks of Linear Technology Corporation. *Check compatability (some pins may be different). Low Operating Voltage 5V to 15V Supply Current: 500A Zero Supply Current When Shut Down Outputs Can Be Driven 30V Output "Open" When Off (Three-State) Output Drive: 10mA Pinout Similar to 1488* Output of Several Devices Can Be Paralleled APPLICATIONS s s s RS232 Driver Micropower Interface Level Translator TYPICAL APPLICATIONS RS232 Line Driver - 6V INPUT OUTPUT 1 2 3 LT1030 14 13 12 11 10 9 8 OUTPUT VOLTAGE REFERRED TO SUPPLIES (V) V+ -0.2 -0.4 OUTPUT HIGH Output Swing vs Output Current 6V STROBE* INPUT OUTPUT NC INPUT OUTPUT 1.2 1.0 0.8 0.6 0.4 0.2 V- 0 1 3 4 2 OUTPUT CURRENT (mA) 5 OUTPUT LOW ON/OFF 4 (0V TO 5V) 5 INPUT 6 OUTPUT 7 GND *NO CONNECTION NEEDED WHEN NOT USED 5V = ON LT1030 * TA01 U U U LT1030 * TA02 1 LT1030 ABSOLUTE MAXIMUM RATINGS Supply Voltage ...................................................... 15V Logic Input Pins ............................................. V - to 25V On/Off Pin .................................................... GND to 12V Output (Forced) .............................. V - + 30V, V + - 30V Short-Circuit Duration (to 30V) ..................... Indefinite Operating Temperature Range Commercial ............................................. 0C to 70C Guaranteed Functional by Design ....... - 25C to 85C Storage Temperature ............................ - 65C to 150C Lead Temperature (Soldering, 10 sec).................. 300C PACKAGE/ORDER INFORMATION TOP VIEW V- (-15V TO -5V) 1 2 3 ON/OFF (0V TO 5V) 4 5 6 GND 7 V+ 14 (5V TO 15V) 13 STROBE 12 11 10 9 8 S PACKAGE 14-LEAD PLASTIC SO ORDER PART NUMBER LT1030CN LT1030CS N PACKAGE 14-LEAD PDIP TJMAX = 125C, JA = 90C/ W (N) TJMAX = 125C, JA = 95C/ W (S) LT1030CJ CONSULT FACTORY Consult factory for Industrial and Military grade parts. ELECTRICAL CHARACTERISTICS PARAMETER Supply Current Power Supply Leakage Current Output Voltage Swing Output Current Output Overload Voltage (Forced) Output Current Input Overload Voltage (Forced) Logic Input Levels Logic Input Current On/Off Pin Current Slew Rate (Supply Voltage = 5 to 15V) MIN q q V + - 0.3V 5 V + - 30V CONDITIONS VON/OFF 2.4V, IOUT = 0, All Outputs Low VON/OFF 0.4V VON/OFF 0.1V Load = 2mA Positive Negative VSUPPLY 5V to 15V Operating or Shutdown Shutdown VS = 0V, VOUT = 30V VS = 15V, VOUT = 20V Operating or Shutdown Low Input (VOUT = High) High Input (VOUT = Low) VIN > 2.0V VIN < 0.8V 0 VIN 5V TYP 500 1 10 V + - 0.1V V - + 0.9V 12 2 2 MAX 1000 10 150 V - + 1.4V V - + 30V 100 100 15 0.8 20 20 65 30 UNITS A A A V V mA V A A V V V A A A V/S q q q q V- 2 1.4 1.4 2 10 30 15 q -10 4 The q denotes specifications which apply over the full operating temperature range. Note 1: 3V applied to the Strobe pin will force all outputs low. Strobe pin input impedance is about 2k to ground. Leave open when not used. PIN FUNCTIONS V -(Pin 1): Operates - 15V to - 2V. LOGIC INPUT (Pins 2, 5, 9, 12): Operate properly on TTL or CMOS levels. Output valid from (V - + 2V) VIN 15V. Connect to 5V when not used. OUTPUT (Pins 3, 6, 8, 11): Line drive outputs. ON/OFF (Pin 4): Shuts down entire circuit. Cannot be left open. For "normally on" operation, connect between 5V to 10V. GND (Pin 7): Ground must be more positive than V -. STROBE (Pin 13): Forces all outputs low. Drive with 3V. V + (Pin 14): Positive supply 5V to 15V. 14 LT1030 1 1N4001 7 8 LT1030 * PF01 Note: As with other bipolar ICs, forward biasing the substrate diode can cause problems. The LT1030 will draw high current from V + to ground if the V - pin is open circuited or pulled above ground. If this is possible, connecting a diode from V - to ground will prevent the high current state. Any low cost diode can be used. 2 U W U U WW U W U U LT1030 TYPICAL PERFORMANCE CHARACTERISTICS On Supply Current vs Temperature 5.0 4.5 4.0 VSUPPLY = 12V SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 ALL OUTPUTS HIGH 3.5 3.0 2.5 2.0 1.5 1.0 ALL OUTPUTS HIGH SUPPLY CURRENT (A) ALL OUTPUTS LOW 100 125 LT1030 * TPC01 0 -75 -50 -25 0 25 50 75 TEMPERATURE (C) Off Output Leakage vs Temperature 100 VSUPPLY = 12V ON/OFF PIN CURRENT (A) 140 120 OUTPUT LEAKAGE CURRENT (A) ON/OFF PIN VOLTAGE (V) 10 OUTPUT FORCED TO -25V 0 0.1 OUTPUT FORCED TO 25V 0.01 25 50 75 100 TEMPERATURE (C) 125 LT1030 * TPC04 Current Limit vs Temperature OUTPUT VOLTAGE REFERED TO SUPPLIES (V) 35 30 OUTPUT CURRENT (mA) SINKING 25 20 SOURCING 15 10 5 25 50 75 -75 -50 -25 0 TEMPERATURE (C) SLEW RATE (V/s) UW LT1332 * TPC06 On Supply Current vs Supply Voltage 5.0 4.5 4.0 10 100 Off Supply Current vs Temperature VSUPPLY = 12V 0 0.1 0.5 0 10 ALL OUTPUTS LOW 0.01 25 20 15 TOTAL SUPPLY VOLTAGE (V) 30 25 50 75 100 TEMPERATURE (C) 125 LT1030 * TPC03 LT1030 * TPC02 On/Off Pin Current vs Voltage 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0 -20 GND 5 10 15 LT1030 * TPC05 Shutdown Voltage vs Temperature RL = 3k MAX OFF VOLTAGE (IOUT < 200A) MIN ON VOLTAGE 100 80 60 40 20 0.2 MAX OFF VOLTAGE (IOUT < 20A) 100 125 LT1030 * TPC06 ON/OFF PIN VOLTAGE (V) GND 25 50 75 -75 -50 -25 0 TEMPERATURE (C) Output Swing vs Temperature V+ -0.2 -0.4 1.4 1.2 1.0 0.8 0.6 0.4 0.2 V- -75 -50 -25 0 25 50 75 TEMPERATURE (C) 100 125 LT1030 * TPC08 Slew Rate vs Temperature 25 23 21 19 17 15 13 11 9 7 5 -75 -50 -25 0 25 50 75 TEMPERATURE (C) 100 125 LT1030 * TPC09 IOUT = 5mA IOUT = 1mA VS = 12V RL = 3K CL = 51pF VSLEW = 8V FALLING IOUT = -5mA RISING IOUT = -1mA 100 125 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 3 LT1030 TYPICAL PERFORMANCE CHARACTERISTICS On-Off Response Time OUTPUT (VIN = 0V) 10V 5V 0V 0V OUTPUT - 5V (VIN = 5V) - 10V ON/OFF INPUT 5V 0V H = 100s/DIV VS = 12V RL = 3k CL = 51pF OUTPUT (VIN = 0V) OUTPUT (VIN = 5V) ON/OFF INPUT 6V 4V 2V 0V 0V - 2V - 4V - 6V 5V 0V H = 100s/DIV Output Waveform Driving Capacitive Load 6V 4V 2V 0V OUTPUT - 2V - 4V - 6V 5V INPUT 0V VS = 6V RL = 3k CL = 0.01F PACKAGE DESCRIPTION 0.300 - 0.325 (7.620 - 8.255) 0.130 0.005 (3.302 0.127) 0.015 (0.380) MIN 0.009 - 0.015 (0.229 - 0.381) ( +0.025 0.325 - 0.015 8.255 + 0.635 - 0.381 ) 0.125 (3.175) MIN 0.010 - 0.020 x 45 (0.254 - 0.508) 0.008 - 0.010 (0.203 - 0.254) 0.053 - 0.069 (1.346 - 1.752) 0 - 8 TYP 0.014 - 0.019 0.016 - 0.050 (0.355 - 0.483) 0.406 - 1.270 *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE RELATED PARTS PART NUMBER LT1180A LTC (R) 1321 LT1134A LTC1383 DESCRIPTION Dual 5V RS232 Transceiver with Shutdown Programmable RS232/RS485 Transceiver 4-Driver/4-Receiver RS232 Tranceiver Micropower Dual 5V RS232 Transceiver COMMENTS Shutdown Plus 10kV ESD Low Supply Current, High Speed Data Transmission Single 5V Supply, 10kV ESD Protection, 0.1F Charge Pump Capacitor Lowest Power 2-Driver/2-Receiver Solution LT/GP 0895 2K * REV B PRINTED IN USA 4 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7487 (408) 432-1900 q FAX: (408) 434-0507 q TELEX: 499-3977 U UW On-Off Response Time VS = 6V RL = 3k CL = 51pF 5V 0V -5V Output Waveforms RL = 3k CL = 51pF OUTPUT (VS = 6V) 10V OUTPUT 0V (VS = 12V) -10V 5V INPUT 0V H = 2s/DIV Strobe Pin Response Time VIN = 5V VS = 6V RL = 3k CL = 0.01F 10V 5V OUTPUT 0V - 5V - 10V STROBE INPUT 5V 0V H = 10s/DIV H = 2s/DIV Dimension in inches (millimeters) unless otherwise noted. N Package 14-Lead Plastic DIP 0.045 - 0.065 (1.143 - 1.651) 14 0.065 (1.651) TYP 0.005 (0.125) MIN 0.100 0.010 (2.540 0.254) 0.018 0.003 (0.457 0.076) 0.255 0.015* (6.477 0.381) 13 0.770* (19.558) MAX 11 12 10 9 8 1 2 3 4 5 6 7 N14 0695 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) S Package 14-Lead Plastic SO 0.228 - 0.244 (5.791 - 6.197) 0.004 - 0.010 (0.101 - 0.254) 14 13 0.337 - 0.344* (8.560 - 8.738) 12 11 10 9 8 0.150 - 0.157** (3.810 - 3.988) 0.050 (1.270) TYP 1 2 3 4 5 6 7 S14 0695 (c) LINEAR TECHNOLOGY CORPORATION 1987 |
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