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LTC4311

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 (<5A) Supply Current Shutdown Does Not Load Bus Whe...

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SeekIC No. : 004402568 Detail

LTC4311: 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 Ope...

LTC4311 Data Sheet

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Part Number:
LTC4311
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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 (<5A) 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


Application

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


Pinout

Connection Diagram




Specifications

VCC to GND .................................................. 0.3 to 6V
BUS1, BUS2, ENABLE Inputs ........................ 0.3 to 6V
Operating Temperature
LTC4311C .................................................... 0 to 70
LTC4311I..................................................40 to 85
Storage Temperature Range (DFN) ........65 to 125
Storage Temperature Range (SC70).......65 to 125
Lead Temperature (Soldering 10, sec)
SC70 ..................................................................... 300


Description

The LTC®4311 is a dual I2C active pull-up designed to enhance data transmission speed and reliability for bus loading conditions well beyond the 400pF I2C specifi cation 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 (<5A) current shutdown.

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




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