1 Features
• Meets the requirements of ISO11898-2
• 5000-VRMS isolation (ISO1050DW)
• 2500-VRMS isolation (ISO1050DUB)
• Fail-safe outputs
• Low loop delay: 150 ns (typical), 210 ns
(maximum)
• 50-kV/μs typical transient immunity
• Bus-fault protection of –27 V to 40 V
• Driver (TXD) dominant time-out function
• I/O voltage range supports 3.3 V and 5 V
microprocessors
• Safety-related certifications
– VDE approval per DIN EN IEC 60747-17 (VDE
0884-17)
– UL 1577 approved
– CSA approved for IEC 61010-1, IEC 60601-1
– TUV Reinforced Insulation Approval for
EN/UL/CSA 62368-1 (ISO1050DW-Only)
– CQC reinforced insulation per GB4943.1
(ISO1050DW-only)
– Typical 25-year life at rated working voltage
(see application report SLLA197 and Life
Expectancy vs Working Voltage)

2 Applications
• Industrial automation, control, sensors, and drive
systems
• Building and climate control (HVAC) automation
• Security systems
• Transportation
• Medical
• Telecom
• CAN bus standards such as CANopen, DeviceNet,
NMEA2000, ARINC825, ISO11783, CAN Kingdom,
CANaerospace

3 Description
The ISO1050 is a galvanically isolated CAN
transceiver that meets the specifications of the
ISO11898-2 standard. The device has the logic input
and output buffers separated by a silicon oxide (SiO2)
insulation barrier that provides galvanic isolation of
up to 5000 VRMS for ISO1050DW and 2500 VRMS
for ISO1050DUB. Used in conjunction with isolated
power supplies, the device prevents noise currents on
a data bus or other circuits from entering the local
ground and interfering with or damaging sensitive
circuitry.
As a CAN transceiver, the device provides differential
transmit capability to the bus and differential receive
capability to a CAN controller at signaling rates up to
1 megabit per second (Mbps). The device is designed
for operation in especially harsh environments, and it
features cross-wire, overvoltage and loss of ground
protection from –27 V to 40 V and overtemperature
shutdown, as well as –12V to 12V common-mode
range.
The ISO1050 is characterized for operation over the
ambient temperature range of –55°C to 105°C.