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LTC1383 Datasheet(PDF) 1 Page - Linear Technology |
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LTC1383 Datasheet(HTML) 1 Page - Linear Technology |
1 / 8 page 1 LTC1384 1384fa The LTC ®1384 is an ultra-low power 2-driver/2-receiver RS232 transceiver that operates from a single 5V supply. The charge pump requires only four space- saving 0.1µF capacitors. The transceiver operates in one of two modes, Normal and Shutdown. In the Normal mode, ICC is only 220µA with the driver outputs unloaded. In the Shutdown mode, the charge pump is turned off, the driver outputs are forced into three-state, both receivers are kept active and ICC drops to 35µA. The receiver outputs may be forced into three-state at any time using the receiver enable (RX EN) pin. The LTC1384 is fully compliant with all data rate and overvoltage RS232 specifications. The transceiver can operate up to 120kbaud with a 2500pF, 3kΩ load. Both driver outputs and receiver inputs can be forced to ±25V without damage and can survive multiple ±10kV ESD strikes. 5V Low Power RS232 Transceiver with 2 Receivers Active in Shutdown ■ Operates from a Single 5V Supply Low Supply Current: ICC = 220µA ■ ICC = 35µA in Shutdown Mode with Both Receivers Kept Alive ■ ESD Protection Over ±10kV ■ Uses Small Capacitors: 0.1µF ■ Operates to 120kBaud ■ Output Overvoltage Does Not Force Current Back into Supplies ■ RS232 I/O Lines Can Be Forced to ±25V Without Damage ■ Pin Compatible with LT1180A ■ Notebook Computers ■ Palmtop Computers 2-Drivers/2-Receivers with Shutdown and Receiver Enable Quiescent and Shutdown Supply Current vs Temperature TEMPERATURE (°C) –20 0 200 400 600 800 1200 0 20 40 60 LTC1384 • TA02 80 1000 TEST CONDITION: VCC = 5V 0 10 20 30 40 60 50 QUIESCENT CURRENT SHUTDOWN CURRENT FEATURES DESCRIPTIO APPLICATIO S TYPICAL APPLICATIO , LTC and LT are registered trademarks of Linear Technology Corporation. LTC1384 • TA01 LTC1384 2 4 0.1µF 17 VCC = 5V 3 0.1µF 7 0.1µF 0.1µF 5 6 232 OUTPUT 15 8 232 OUTPUT 14 232 INPUT 5k 9 232 INPUT 16 12 11 13 10 LOGIC INPUT LOGIC INPUT LOGIC OUTPUT LOGIC OUTPUT 5k 18 ON/OFF RX EN 1 300k VCC 300k VCC |
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