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Overview
Features and Benefits
- 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
Product Details
The LTC1384 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.
Applications
- Notebook Computers
- Palmtop Computers
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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
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