LTC2875_15 Datasheet, PDF (1/20 Pages) Linear Technology – 60V Fault Protected 3.3V or 5V 25kV ESD High Speed CAN Transceiver

LTC2875
Features
±60V Fault Protected
3.3V or 5V 25kV ESD
High Speed CAN Transceiver
Description
n _{Protected from Overvoltage Line Faults to ±60V}
n _{3.3V or 5V Supply Voltage}
n _{High Speed Operation Up to 4Mbps}
n _{±25kV ESD Interface Pins, ±8kV All Other Pins}
n _{Variable Slew Rate Driver with Active Symmetry}
Control and SPLIT Pin for Low Electromagnetic
Emission (EME)
n _{Extended Common Mode Range (±36V)}
n _{Ideal Passive Behavior to CAN Bus with Supply Off}
n _{Current Limited Drivers and Thermal Shutdown}
n _{Power-Up/Down Glitch-Free Driver Outputs}
n _{Micropower Shutdown Mode}
n _{Transmit Data (TXD) Dominant Timeout Function}
n _{ISO 11898-2 Compliant}
n _{DeviceNet Compatible}
n _{Up to MP-Grade Available (–55°C to 125°C)}
n _{3mm × 3mm 8-Lead DFN and SO-8 Packages}
Applications
n _{Industrial Control and Instrumentation Networks}
n _{Automotive and Transportation Electronics}
n _{Building Automation, Security Systems, HVAC}
n _{Medical Equipment}
The LTC^®2875 is a robust high speed, low power CAN
transceiver operating on 3.3V or 5V supplies that features
±60V overvoltage fault protection on the data transmission
lines during all modes of operation, including power-down.
The maximum data rate has been extended to 4Mbps to
support high speed protocols based on the CAN physi-
cal layer. Enhanced ESD protection allows these parts to
withstand ±25kV HBM on the transceiver interface pins
without latchup or damage.
Extended ±36V input common mode range and high com-
mon mode rejection on the CAN receiver provides tolerance
of large ground loop voltages. A sophisticated CAN driver
with active symmetry control maintains tight control of
the common mode voltage for excellent electromagnetic
emission, while the variable slew rate and split termination
support allow additional EME reduction.
L, LT, LTC, LTM, Linear Technology, µModule and the Linear logo are registered trademarks
and Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Typical Application
CAN Bus Link with Large Ground Loop Voltage
RXD1
LTC2875
R
V_CC1
CANH
120Ω
VCC2
CANH
120Ω
LTC2875
R
RXD2
TXD1
D
RS1
CANL
CANL
GND1 _{AC GROUND}
LOOP ≤ 36V
PEAK
GND2
D
TXD2
RS2
2875 TA01a
LTC2875 Transmitting at 4Mbps
from a 3.3V Supply
TXD
2V/DIV
RXD
2V/DIV
CANH
1V/DIV
CANL
1V/DIV
COMMON MODE
100ns/DIV
2875 TA01b
2875f
For more information www.linear.com/LTC2875
1