SHUTDOWN CURRENT (A) LTC1327 3.3V Micropower EIA/TIA-562 Transceiver DESCRIPTIO EA U S F T RE n Low Supply Current 300A The LTC1327 is an advanced low power, three-driver/five- n 0.2A Supply Current in SHUTDOWN receiver EIA/TIA-562 transceiver. In the no load condition, n ESD Protection 10kV the supply current is only 300A. The charge pump only n Operates From a Single 3.3V Supply requires four 0.1F capacitors. n Uses Small Capacitors 0.1F In SHUTDOWN mode, the supply current is further re- n Operates To 120k Baud duced to 0.2A. All EIA/TIA-562 outputs assume a high n Three-State Outputs are High Impedance When Off impedance state in SHUTDOWN and with the power off. n Output Overvoltage Does Not Force Current Back The LTC1327 is fully compliant with all data rate and Into Supplies n overvoltage EIA/TIA-562 specifications. The transceiver EIA/TIA-562 I/O Lines Can Be Forced to 25V can operate up to 120k Baud with a 1000pF//3k load. Without Damage n Both driver outputs and receiver inputs can be forced to Flowthrough Architecture 25V without damage, and can survive multiple 10kV ESD strikes. APPLICATI S n Notebook Computers n Palmtop Computers TYPICAL APPLICATI 3-Drivers/5-Receivers with SHUTDOWN Supply Current vs Temperature 600 1.2 + 1 28 V V V = 3.3V CC LTC1327 C1 ALL DRIVERS INPUTS TIED TO V C4 2 27 CC V 0.1F 500 1.0 CC 0.1F C3 3 26 0.1F C2 4 25 0.1F 400 0.8 DR1 IN QUIESCENT 5 24 CURRENT DR1 OUT RX1 OUT 6 23 300 0.6 RX1 IN DR2 IN 7 22 DR2 OUT RX2 OUT SHUTDOWN 200 0.4 8 21 CURRENT RX2 IN RX3 OUT 9 20 RX3 IN RX4 OUT 100 0.2 10 19 RX4 IN DR3 IN 11 18 DR4 OUT RX5 OUT 0 12 17 20 0 20 40 60 80 RX5 IN GND TEMPERATURE (C) 13 16 ON/OFF LTC1327 TA02 14 15 1327 TA01 1 QUIESCENT CURRENT (A) UO UO ULTC1327 WUWW UW U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO Supply Voltage (V ) ................................................. 5V CC TOP VIEW ORDER PART Input Voltage + NUMBER V 1 28 V Driver ...................................... 0.3V to (V + 0.3V) + CC V 2 27 C2 CC + Receiver ................................................ 25V to 25V C1 3 26 C2 LTC1327CG C1 4 25 DR1 IN On/Off Pin ............................... 0.3V to (V + 0.3V) CC LTC1327CN DR1 OUT 5 24 RX1 OUT Output Voltage LTC1327CS RX1 IN 6 23 DR2 IN Driver .................................................... 25V to 25V DR2 OUT 7 22 RX2 OUT Receiver ................................. 0.3V to (V + 0.3V) CC RX2 IN 8 21 RX3 OUT Short-Circuit Duration RX3 IN 9 20 RX4 OUT + V ................................................................................... 30 sec RX4 IN 10 19 DR3 IN DR3 OUT 11 18 RX5 OUT V ................................................................................... 30 sec RX5 IN 12 17 GND Driver Output ............................................. Indefinite ON/OFF 13 16 NC Receiver Output ......................................... Indefinite NC 14 15 NC Operating Temperature Range G PACKAGE N PACKAGE Commercial LTC1327C .......................... 0C to 70C 28-LEAD SSOP 28-LEAD PLASTIC DIP Storage Temperature Range ................. 65c to 150C S PACKAGE 28-LEAD PLASTIC SOL Lead Temperature (Soldering, 10 sec)................. 300C T = 125C, = 96C/W (G) JMAX JA T = 125C, = 56C/W (N) JMAX JA T = 125C, = 85C/W (S) JMAX JA Consult factory for Industrial and Military grade parts. DC ELECTRICAL CHARACTERISTICS V = 3.3V, C1 to C4 = 0.1F, unless otherwise noted. CC PARAMETER CONDITIONS MIN TYP MAX UNITS Any Driver Output Voltage Swing Positive l 3.7 4.5 V Negative (3k to GND) l 3.7 4.5 V Logic Input Voltage Level Input Low Level (V = High) l 1.4 0.8 V OUT Input High Level (V = Low) l 2 1.4 V OUT Logic Input Current V = 3.3 l 5 A IN V = 0 l 5 A IN Output Short-Circuit Current V = 0V 7mA OUT Output Leakage Current SHUTDOWN (Note 3), V = 20V 10 500 A OUT Any Receiver Input Voltage Thresholds Input Low Threshold l 0.8 1.3 V Input High Threshold l 1.7 2.4 V Hysteresis l 0.1 0.4 1 V Input Resistance V = 10V 3 5 7 k IN Output Voltage Output Low, I = 1.6mA (V = 3.3V) l 0.2 0.4 V OUT CC Output High, I = 160A (V = 3.3V) l 3 3.2 V OUT CC Output Short-Circuit Current Sinking Current, V = V 2 10 mA OUT CC Output Leakage Current SHUTDOWN (Note 3), 0 V V l 110 A OUT CC 2