LTC2846

VCC Voltage..............................................  0.3V to 6.5V
VIN Voltage ..............................................  0.3V to 6.5V
Input Voltage
Transmitters ...............................  0.3V to (VCC + 0.3V)
Receivers ..................................................  18V to 18V
Logic Pins ...................................  0.3V to (VCC + 0.3V)
Output Voltage
Transmitters ..................... (VEE  0.3V) to (VDD + 0.3V)
Receivers ....................................  0.3V to (VIN + 0.3V)
VEE............................................................ 10V to 0.3V
VDD ........................................................... 0.3V to 10V
Short-Circuit Duration
Transmitter Output ......................................... Indefinite
Receiver Output .............................................. Indefinite
VEE....................................................................... 30 sec
SW Voltage ............................................... 0.4V to 36V
FB Voltage ...............................................  0.3V to 2.5V
Current into FB Pin .............................................. ±1mA
SHDN Voltage ........................................... 0.3V to 10V
Operating Temperature Range
LTC2846C ............................................... 0°C to 70°C
LTC2846I........................................... 40°C to 85°C
Storage Temperature Range ...........  65°C to 150°C
Lead Temperature (Soldering, 10 sec)............... 300°C


Description

The LTC®2846 is a 3-driver/3-receiver multiprotocol transceiver with on-chip cable termination. When combined with the LTC2844 or LTC2845, this chip set forms a complete software-selectable DTE or DCE interface port that supports the RS232, RS449, EIA530, EIA530-A, V.35, V.36 and X.21 protocols. All necessary cable termination is provided inside the LTC2846. The LTC2846 has a boost regulator that takes in a 3.3V input and switches at 1.2MHz, allowing the use of tiny, low cost capacitors and inductors 2mm or less in height. 

The 5V output drives an internal charge pump that requires only five space-saving surface mounted capacitors. The LTC2846 is available in a 36-lead SSOP surface mount package.