LT1032 Quad Low Power Line Driver FEATURES DESCRIPTIO n Low Operating Voltage: 5V to 15V The LT 1032 is a RS232 and RS423 line driver that n 500m A Supply Current operates over a 5V to 15V range on low supply current n Zero Supply Current when Shut Down and can be shut down to zero supply current. Outputs are n Outputs Can Be Driven 30V fully protected from externally applied voltages of 30V by n Thermal Limiting both current and thermal limiting. Since the output swings n Output Open when Off (Three-State) to within 200mV of the positive supply and 600mV of the n 10mA Output Drive negative supply, power supply needs are minimized. n Pinout Similar to 1488 Also included is a strobe pin to force all outputs low independent of input or shutdown conditions. Further, U APPLICATIO S slew rate can be adjusted with a resistor connected to the supply. n RS232 n Power Supply Inverter A major advantage of the LT1032 is the high impedance n Micropower Interface output state when off or powered down. n Level Translator For applications requiring dual or triple RS232 driver/ receiver devices, see the LT1180A (dual), LT1039A (triple) or the LT1130A data sheets. , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIO RS232 Line Driver Output Swing vs Output Current + V 1 14 LT1032 6V 6V 0.2 2 13 V HIGH INPUT STROBE* OUT 0.4 3 12 OUTPUT INPUT 4 11 ON/OFF OUTPUT (0V TO 5V) 5 10 RESPONSE TIME INPUT CONTROL* 1.0 V LOW 6 9 OUT OUTPUT INPUT 0.8 7 8 GND OUTPUT 0.6 *NO CONNECTION NEEDED WHEN NOT USED 0.4 5V = ON LT1032 TA01 0.2 V 0 2 4 6 8 10 OUTPUT CURRENT (mA) LT1032 TA02 1032fe 1 OUTPUT VOLTAGE REFERRED TO SUPPLIES (V) U ULT1032 (Note 1) ABSOLUTEXAI U RATI GS Supply Voltage ..................................................... 15V Operating Temperature Range Logic Input Pins ............................................ V to 25V LT1032C............................................... 0 C to 70 C ON/OFF Pin ................................................. GND to 15V LT1032I ........................................... 40 C to 85 C + Output (Forced) ............................. V + 30V, V 30V LT1032M ....................................... 55 C to 125 C Response Pin ......................................................... 6V C Grade Guaranteed Short-Circuit Duration (to 30V) .................... Indefinite Functional by Design .............................. 25 C to 85 C Storage Temperature Range ................ 65 C to 150 C Lead Temperature (Soldering, 10 sec)................. 300 C PACKAGE/ORDER I FOR ATIO ORDER PART ORDER PART TOP VIEW NUMBER V V NUMBER EE CC 1 14 (15V TO 5V) (5V TO 15V) 2 13 STROBE TOP VIEW 3 12 LT1032CN LT1032CSW V 1 16 V EE CC ON/OFF 4 11 (0V TO 5V) LT1032IN 2 15 LT1032ISW STROBE RESPONSE 5 10 CONTROL 3 14 6 9 ON/OFF 4 13 GND 7 8 RESPONSE 12 5 CONTROL N PACKAGE 6 11 14-LEAD PDIP GND 7 10 T = 150 C, q = 130 C/W CN) JMAX JA NC 8 9 NC SW PACKAGE J PACKAGE 16-LEAD PLASTIC SO (WIDE) 14-LEAD CERDIP LT1032CJ T = 150 C, q = 90 C/W JMAX JA T = 150 C, q = 95 C/W (CJ) JMAX JA LT1032MJ T = 150 C, q = 95 C/W (MJ) JMAX JA OBSOLETE PACKAGE Consider the N Package as an Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. The l denotes specifications which apply over the full operating temperature ELECTRICAL CHARACTERISTICS range, otherwise specifications are at T = 25 C. Supply voltage = 5V to 15V A PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Current V 2.4V, I = 0, All Outputs Low l 500 1000 m A ON/OFF OUT Power Supply Leakage Current V 0.4V 1 10 m A ON/OFF V 0.1V, T = 125 C l 10 50 m A ON/OFF A + + Output Voltage Swing Load = 2mA Positive V 0.3V V 0.1V V Negative V + 0.7V V + 0.9V V Output Current (Active) V = 5V to 15V 10 22 mA SUPPLY Output Current (Shutdown) V = 0V, V = 30V 2 100 m A SUPPLY OUT V = 15V, V = 20V 2 100 m A SUPPLY OUT + Output Overload Voltage (Forced) Operating or Shutdown l V 30V V + 30V V Input Overload Voltage (Forced) Operating of Shutdown l V 30V V Logic Input Levels Low Input (V = High) l 1.4 0.8 V OUT High Input (V = Low) l 2 1.4 V OUT Logic Input Current V > 2.0V 2 20 m A IN V < 0.8V 10 20 m A IN ON/OFF Pin Current 0 V 5V l 10 3 50 m A IN Slew Rate I = 0, R = 3k 4 15 30 V/m s RESPONSE L 1032fe 2 U WU U W W W