900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Linear Technology Electronic Components Datasheet

LTC4311IDC Datasheet

Low Voltage I2C/SMBus Accelerator

No Preview Available !

LTC4311
Low Voltage I2C/SMBus
Accelerator
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
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 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 lon-
ger, 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.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All
other trademarks are the property of their respective owners. Protected by U.S. Patents
including 6356140 and 6650174.
TYPICAL APPLICATION
VCC
2.5V
C1
0.01μF
I2C
SCL
SDA
CLK
IN
CLK
OUT
DEVICE 1
LTC4311
VCC
BUS1
ENABLE
GND
BUS2
DATA
IN
DATA
OUT
VCC
2.5V
10k 10k
CLK
IN
CLK
OUT
DEVICE N
DATA
IN
DATA
OUT
4311 TA01a
Comparison of I2C Waveforms for
the LTC4311 vs Resistor Pull-Up
1V/DIV
LTC4311
RPULL-UP = 15.8k
VCC = 5V
CLD = 200pF
fI2C = 100kHz
1μs/DIV
4311 TA01b
4311fa
1


Linear Technology Electronic Components Datasheet

LTC4311IDC Datasheet

Low Voltage I2C/SMBus Accelerator

No Preview Available !

LTC4311
ABSOLUTE MAXIMUM RATINGS (Notes 1, 2)
VCC to GND .................................................... – 0.3 to 6V
BUS1, BUS2, ENABLE Inputs......................... – 0.3 to 6V
Operating Temperature
LTC4311C ................................................ 0°C to 70°C
LTC4311I..............................................– 40°C to 85°C
Storage Temperature Range (DFN) ........– 65°C to 125°C
Storage Temperature Range (SC70).......– 65°C to 125°C
Lead Temperature (Soldering 10, sec)
SC70 ............................................................ 300°C
PIN CONFIGURATION
TOP VIEW
ENABLE 1
6 GND
NC 2
7
5 BUS2
VCC 3
4 BUS1
DFN PACKAGE
6-LEAD (2mm s 2mm) PLASTIC DFN
TJMAX = 125°C, θJA = 102°C/W
EXPOSED PAD (PIN 7) PCB CONNECTION TO GND IS OPTIONAL (Note 3)
TOP VIEW
VCC 1
GND 2
ENABLE 3
6 BUS1
5 GND
4 BUS2
SC70 PACKAGE
6-LEAD PLASTIC SC70
TJMAX = 125°C, θJA = 150° C/W
ORDER INFORMATION
Lead Free Finish
TAPE AND REEL (MINI) TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
LTC4311CDC#TRMPBF LTC4311CDC#TRPBF
LCNG
6-Lead (2mm × 2mm) Plastic DFN
LTC4311IDC#TRMPBF
LTC4311IDC#TRPBF
LCNG
6-Lead (2mm × 2mm) Plastic DFN
LTC4311CSC6#TRMPBF LTC4311CSC6#TRPBF LCNF
6-Lead (2mm × 2mm) Plastic SC70
LTC4311ISC6#TRMPBF LTC4311ISC6#TRPBF LCNF
6-Lead (2mm × 2mm) Plastic SC70
TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
4311fa
2


Part Number LTC4311IDC
Description Low Voltage I2C/SMBus Accelerator
Maker Linear
PDF Download

LTC4311IDC Datasheet PDF






Similar Datasheet

1 LTC4311IDC Low Voltage I2C/SMBus Accelerator
Linear





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy