Analog Devices

LTC4311CSC6#TRPBF

Interface ICs

Manufacturer
MPN
LTC4311CSC6#TRPBF
Package / Case
SC-70-6
Key Attributes
Low Voltage I2C/SMBus Accelerator

Technical Specifications

TypeDescription
Data Rate400 kbps
Input Type2-Wire Bus
Input Capacitance-
Delay Time-
TypeAccelerator
Supply Voltage1.6V~5.5V
TypeDescription
Channels2
Output Type2-Wire Bus
FeaturesAuto-enable;Power-off isolation
Operating Temperature0°C~+70°C
Package / CaseSC-70-6

Product Introduction

The LTC4311 is a dual I2C active pull-up designed to enhance data transmission speed and reliability for bus loading conditions well beyond the 400pF I2C specification limit. The LTC4311 operates at supply voltages from 1.6V to 5.5V and is also compatible with SMBus.

The LTC4311 allows multiple device connections or a longer, more capacitive interconnect, without compromising slew rates or bus performance, by using two slew limited pull-up currents.

During positive bus transitions, the LTC4311 provides slew limited pull-up currents to quickly slew the I2C or SMBus lines to the bus pull-up voltage. During negative transitions or steady DC levels, the currents are disabled to improve negative slew rate, and improve low state noise margins. An auto detect standby mode reduces supply current if both SCL and SDA are high. When disabled, the LTC4311 goes into low (<5μA) current shutdown.

The LTC4311 is available in the 2mm×2mm×0.75mm DFN, and SC70 packages.

Features

  • Improves I2C Bus Rise Time Transition
  • Ensures Data Integrity with Multiple Devices on the I2C Bus
  • Wide Supply Voltage Range: 1.6V to 5.5V
  • Improves Low State Noise Margin
  • Up to 400kHz Operation
  • Auto Detect Low Power Standby Mode
  • Low (<5μA) Supply Current Shutdown
  • Does Not Load Bus When Disabled or Powered Down
  • Strong Slew Limited Pull-up Current
  • ±8KV Human Body Model ESD Ruggedness
  • 2mm×2mm DFN and SC70 Packages

Applications

  • Notebook and Palmtop Computers
  • Portable Instruments
  • Battery Chargers
  • Industrial Controls
  • TV/Video Products
  • ACPI SMBus Interface

Datasheet

📄 Open Download

Alternative Parts

Common LTC4311CSC6#TRPBF alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCNEAR99
CNHTS8542399000
USHTS8542390001
TARIC8542399000
TypeDetails
CAHTS8542390000
BRHTS85423999
INHTS85423900
MXHTS8542.39.99

Sourcing Information

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