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Analog Devices Semiconductor Electronic Components Datasheet

LT3960 Datasheet

I2C to CAN-Physical Transceiver

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LT3960
I2C to CAN-Physical Transceiver
FEATURES
n Protected from Overvoltage Line Faults to ±40V
n Up to 400kbps I2C Communications
n 4V to 60V Power Supply Range with Internal 3.3V
Regulator
n 3.3V or 5V Bus Voltage
n Extended Common Mode Range (±36V)
n ±8kV HBM ESD on CAN Pins, ±2kV HBM ESD on
All Other Pins
n Current Limited Drivers with Thermal Shutdown
n Power-Up/Down Glitch Free Driver Outputs
n Low Current Shutdown Mode
n Transmit Data Dominant Timeout Function
n E- and J-Grades Available
n Available in a 10-Lead MSOP Package
n AEC-Q100 Qualification in Progress
APPLICATIONS
n Industrial Networking
n Automotive Networking
n Remote Sensors
DESCRIPTION
The LT®3960 is a robust high speed transceiver that
extends a single-master I2C bus through harsh or noisy
environments at up to 400kbps using the CAN-physical
layer. One LT3960 sits near the I2C master, creating from
SCL and SDA equivalent differential buses (I2CAN) on
two twisted pairs. At the other end of the twisted pairs, a
second LT3960 recreates the I2C bus locally for any slave
I2C devices. A built-in 3.3V LDO powers both the I2C and
I2CAN buses from a single input supply from 4V to 60V.
Alternatively, the LT3960 can be powered directly from a
3.3V or 5V supply.
The LT3960 is available in a 10-lead MSOP package.
All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION
I2CAN Bus Link with Large Ground Loop Voltage
VCC
5V
2.2µF
VIN
VCC
CANSDAH
10k 10k
LT3960
CANSDAL
SDA
SDA
CANSCLH
SCL
SCL
CANSCLL
HIGH = MASTER EN/MODE
GND
VIN
4V TO 60V
120Ω
VIN
CANSDAH
VCC
120Ω
LT3960
CANSDAL
CANSCLH
SDA
120Ω
120Ω
SCL
CANSCLL
GND
EN/MODE
GND1
GND2
AC GROUND
LOOP ≤ 36V PEAK (VCC = 5V)
< 25V PEAK (VCC = 3.3V)
3960 TA01
Receiving I2C Traffic Across ±25V
Common-Mode Differential
2.2µF
10k
VCC
3.3V
10k
SDA
SCL
SDA (SLAVE)
5V/DIV
SDA(MASTER)
5V/DIV
FLOAT = SLAVE
GND1–GND2
20V/DIV
10µs/DIV
3960 TA01b
SLAVE-MODE LT3960
POWERED BY INTERNAL LDO (VCC = 3.3V)
Rev. A
Document Feedback
For more information www.analog.com
1


Analog Devices Semiconductor Electronic Components Datasheet

LT3960 Datasheet

I2C to CAN-Physical Transceiver

No Preview Available !

LT3960
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2, 3)
VIN.............................................................................60V
VCC, EN/MODE..........................................................5.5V
SDA, SCL..........................................–0.3V to VCC + 0.3V
CANSDAH, CANSDAL, CANSCLH,
CANSCLL................................................. –40V to 40V
Operating Junction Temperature Range
LT3960E............................................. –40°C to 125°C
LT3960J............................................. –40°C to 150°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................... 300°C
PIN CONFIGURATION
TOP VIEW
CANSDAL 1
10 SDA
CANSDAH 2
GND 3
CANSCLH 4
11
GND
9 SCL
8 VCC
7 EN/MODE
CANSCLL 5
6 VIN
MSE PACKAGE
10-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 40°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3960EMSE#PBF
LT3960EMSE#TRPBF LTHJP
10-Lead Plastic MSOP
–40°C to 125°C
LT3960JMSE#PBF
LT3960JMSE#TRPBF LTHJP
10-Lead Plastic MSOP
–40°C to 150°C
AUTOMOTIVE PRODUCTS**
LT3960EMSE#WPBF
LT3960EMSE#WTRPBF LTHJP
10-Lead Plastic MSOP
–40°C to 125°C
LT3960JMSE#WPBF
LT3960JMSE#WTRPBF LTHJP
10-Lead Plastic MSOP
–40°C to 150°C
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
**Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These
models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your
local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for
these models.
Rev. A
2
For more information www.analog.com


Part Number LT3960
Description I2C to CAN-Physical Transceiver
Maker Analog Devices
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LT3960 Datasheet PDF






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