LT1381
Info: : PRODUCTION
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LT1381

Low Power 5V RS232 Dual Driver/Receiver with 0.1µF Capacitors

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Models 4
1ku List Price Starting From $2.52
Features
  • ESD Protection over ±10kV
  • Low Cost
  • Uses Small Capacitors: 0.1µF
  • CMOS Comparable Low Power: 40mW
  • Operates from a Single 5V Supply
  • 120kBaud Operation for RL = 3k, CL = 2500pF
  • 250kBaud Operation for RL = 3k, CL = 1000pF
  • Rugged Bipolar Design
  • Outputs Assume a High Impedance State When Powered Down
  • Absolutely No Latchup
  • Available in Narrow SO Package
Additional Details
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The LT1381 is a dual RS232 driver/receiver pair with integral charge pump to generate RS232 voltage levels from a single 5V supply. The circuit features rugged bipolar design to provide operating fault tolerance and ESD protection unmatched by competing CMOS designs. Using only 0.1µF external capacitors, the circuit consumes only 40mW of power and can operate to 120kbaud even while driving heavy capacitive loads. New ESD structures on the chip allow the LT1381 to survive multiple ±10kV strikes, eliminating the need for costly TransZorbs® on the RS232 line pins. Driver outputs are protected from overload and can be shorted to ground or up to ±25V without damage. During power-off conditions, driver and receiver outputs are in a high impedance state, allowing line sharing.

Applications

  • Portable Computers
  • Battery-Powered Systems
  • Power Supply Generator
  • Terminals
  • Modems
Part Models 4
1ku List Price Starting From $2.52

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Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Oct 8, 2024

- 24_0236

Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package

LT1381CS#PBF

PRODUCTION

LT1381CS#TRPBF

PRODUCTION

LT1381IS#PBF

PRODUCTION

LT1381IS#TRPBF

PRODUCTION

Oct 12, 2022

- 22_0252

Epoxy Change from Henkel 8290 to 8290A for 16-Lead SOIC Package

LT1381CS#PBF

PRODUCTION

LT1381CS#TRPBF

PRODUCTION

LT1381IS#PBF

PRODUCTION

LT1381IS#TRPBF

PRODUCTION

Aug 6, 2022

- 22_0173

Laser Top Mark Conversion for SOICN14 and SOICN16 Packages Assembled on ADPG [PNG]

LT1381CS#PBF

PRODUCTION

LT1381CS#TRPBF

PRODUCTION

LT1381IS#PBF

PRODUCTION

LT1381IS#TRPBF

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 8, 2024

- 24_0236

arrow down

Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package

LT1381CS#PBF

PRODUCTION

LT1381CS#TRPBF

PRODUCTION

LT1381IS#PBF

PRODUCTION

LT1381IS#TRPBF

PRODUCTION

Oct 12, 2022

- 22_0252

arrow down

Epoxy Change from Henkel 8290 to 8290A for 16-Lead SOIC Package

LT1381CS#PBF

PRODUCTION

LT1381CS#TRPBF

PRODUCTION

LT1381IS#PBF

PRODUCTION

LT1381IS#TRPBF

PRODUCTION

Aug 6, 2022

- 22_0173

arrow down

Laser Top Mark Conversion for SOICN14 and SOICN16 Packages Assembled on ADPG [PNG]

LT1381CS#PBF

PRODUCTION

LT1381CS#TRPBF

PRODUCTION

LT1381IS#PBF

PRODUCTION

LT1381IS#TRPBF

PRODUCTION

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