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CAN-Physical Transceiver. LT3960 Datasheet

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CAN-Physical Transceiver. LT3960 Datasheet






LT3960 Transceiver. Datasheet pdf. Equivalent




LT3960 Transceiver. Datasheet pdf. Equivalent





Part

LT3960

Description

I2C to CAN-Physical Transceiver



Feature


LT3960 I2C to CAN-Physical Transceiver FEATURES n Protected from Overvoltage L ine Faults to ±40V n Up to 400kbps I2C Communications n 4V to 60V Power Suppl y Range with Internal 3.3V Regulator n 3.3V or 5V Bus Voltage n Extended Commo n Mode Range (±36V) n ±8kV HBM ESD on CAN Pins, ±2kV HBM ESD on All Other P ins n Current Limited Drivers with Ther mal Shutdown n Power-U.
Manufacture

Analog Devices

Datasheet
Download LT3960 Datasheet


Analog Devices LT3960

LT3960; p/Down Glitch Free Driver Outputs n Low Current Shutdown Mode n Transmit Data D ominant Timeout Function n E- and J-Gra des Available n Available in a 10-Lead MSOP Package n AEC-Q100 Qualification i n Progress APPLICATIONS n Industrial Ne tworking n Automotive Networking n Remo te Sensors DESCRIPTION The LT®3960 is a robust high speed transceiver that e xtends a single-mas.


Analog Devices LT3960

ter I2C bus through harsh or noisy envir onments at up to 400kbps using the CAN- physical layer. One LT3960 sits near th e 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 r ecreates the I2C bus locally for any sl ave I2C devices. A built-in 3.3V LDO po wers both the I2C .


Analog Devices LT3960

and I2CAN buses from a single input supp ly from 4V to 60V. Alternatively, the L T3960 can be powered directly from a 3. 3V or 5V supply. The LT3960 is availabl e in a 10-lead MSOP package. All regist ered trademarks and trademarks are the property of their respective owners. T YPICAL APPLICATION I2CAN Bus Link with Large Ground Loop Voltage VCC 5V 2.2 F VIN VCC CANSD.

Part

LT3960

Description

I2C to CAN-Physical Transceiver



Feature


LT3960 I2C to CAN-Physical Transceiver FEATURES n Protected from Overvoltage L ine Faults to ±40V n Up to 400kbps I2C Communications n 4V to 60V Power Suppl y Range with Internal 3.3V Regulator n 3.3V or 5V Bus Voltage n Extended Commo n Mode Range (±36V) n ±8kV HBM ESD on CAN Pins, ±2kV HBM ESD on All Other P ins n Current Limited Drivers with Ther mal Shutdown n Power-U.
Manufacture

Analog Devices

Datasheet
Download LT3960 Datasheet




 LT3960
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
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1




 LT3960
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




 LT3960
LT3960
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, VCC = 3.3V, Figure 1 Applies with RPU = 4.99k, RL = 60Ω,
EN/MODE = VCC, TYP values unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN Low Dropout Regulator
VIN
Input Voltage Operating Range
IIN(SD)
VCC
VLINE
VLOAD
VCC,LOW
ILIMCC
VIN Shutdown Current
LDO Regulation Voltage
LDO Line Regulation
LDO Load Regulation
LDO Voltage at Low VIN
LDO Current Limit
LDO Foldback Current Limit
VUVLO
VCC Undervoltage Lockout Threshold
VCC Undervoltage Lockout Hysteresis
ICC
VCC Shutdown Supply Current
VCC Operating Supply Current
EN/MODE Selection
VCC Regulated Internally from VIN
VIN Tied to VCC, 3.3V Range
VIN Tied to VCC, 5V Range
EN/MODE = 0V
4V ≤ VIN ≤ 60V, ILDO = 1mA
4V ≤ VIN ≤ 60V, ILDO = 1mA
0.1mA < ILDO < 100mA
ILDO = 85mA, VIN = 4V
VCC = 3.0
VCC = 0.5V
VCC Falling
EN/MODE = 0V, VCC = VIN
EN/MODE ≥ 0.7V, VCC = VIN
l
4
l
3
l 4.5
60
V
3.6
V
5.5
V
20
26
µA
3.1
3.3
3.5
V
0.05
%/V
0.05
%/mA
3
V
100
130
160
mA
25
mA
l 2.6
2.7
2.9
V
75
mV
3
mA
4.2
6
mA
VSHDN EN/MODE Shutdown Threshold Falling
VSHDN-HYS EN/MODE Shutdown Hysteresis
VMSTR EN/MODE Master Threshold
IEN-UP EN/MODE Pin Bias Current Low
CAN Drivers
EN/MODE = 350mV
l 400
700
800
mV
50
mV
l 1.9
2
2.2
V
2
µA
VO(D)
Bus Output Voltage
(Dominant)
CANxH t < tTO:CAN
VCC = 3.3V
l 2.15
2.9
3.3
V
VCC = 5V
l 2.75
3.6
4.5
V
CANxL t < tTO:CAN
VCC = 3.3V
l 0.5
0.9
1.65
V
VCC = 5V
0.5
1.4
2.25
V
VO(R) Bus Output Voltage (Recessive)
VCC = 3.3V, No Load (Figure 1)
VCC = 5V, No Load (Figure 1)
l 1.45 1.95 2.45
V
l
2
2.5
3
V
VOD(D) Differential Output Voltage (Dominant)
RL = 50Ω to 65Ω
VCC = 3.3V
l 1.5
2.2
3
V
VOD(D) Differential Output Voltage (Dominant)
VCC = 5V
2.7
3.1
3.5
V
VOD(R) Differential Output Voltage (Recessive)
No Load (Figure 1)
l –500
0
50
mV
VOC(R)
Common Mode Output Voltage (Dominant) VCC = 3.3V, (Figure 1)
VCC = 5V, (Figure 1)
l 1.45 1.95 2.45
V
l
2
2.5
3
V
IOS(D)
Bus Output Short-Circuit Current
(Dominant)
CANxH CANxH = 0V
CANxH –40V < CANxH < VO(R)
l –150 –75
–40
mA
l –150
3
mA
CANxL CANxL = 5V
l 25
75
100
mA
CAN Receivers
CANxL VCC < CANxL < 40V
l –3
100
mA
VCM
Bus Common Mode Voltage =
(CANxH+CANxL)/2 for Data Reception
VTH+
Bus Input Differential Threshold Voltage
(Positive Going)
VTH
Bus Input Differential Threshold Voltage
(Negative Going)
VCC = 3.3V
VCC = 5V
VCC = 3.3V, –25V ≤ VCM ≤ 25V
VCC = 5V, –36V ≤ VCM ≤ 36V
VCC = 3.3V, –25V ≤ VCM ≤ 25V
VCC = 5V, –36V ≤ VCM ≤ 36V
l
±25
V
l
±36
V
l
775
900
mV
l
775
900
mV
l 500
625
mV
l 500
625
mV
Rev. A
For more information www.analog.com
3






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