ISO1050
ISO1050L
SLLS983E – JUNE 2009 – REVISED DECEMBER 2011
www.ti.com
ISOLATED CAN TRANSCEIVER
Check for Samples: ISO1050, ISO1050L
FEATURES
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5000-VRMS Isolation (ISO1050DW)
2500-VRMS Isolation (ISO1050DUB and
ISO1050LDW)
Failsafe Outputs
Low Loop Delay: 150 ns Typical
50 kV/μs Typical Transient Immunity
Meets or Exceeds ISO 11898 requirements
Bus-Fault Protection of –27 V to 40 V
Dominant Time-Out Function
IEC 60747-5-2 (VDE 0884, Rev. 2) & IEC
61010-1 Approved
UL 1577 Double Protection Approved; See
Regulatory Information section for details
IEC 60601-1 (Medical) and CSA Approved
5 KVRMS Reinforced Insulation per TUV
Approved for EN/UL/CSA 60950-1
(ISO1050DW)
3.3-V Inputs are 5-V Tolerant
Typical 25-Year Life at Rated Working Voltage
(see Application Report SLLA197 and
Figure 15)
APPLICATIONS
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CAN Data Buses
Industrial Automation
– DeviceNet Data Buses
– CANopen Data Buses
– CANKingdom Data Buses
Medical Scanning and Imaging
Security Systems
Telecom Base Station Status and Control
HVAC
Building Automation
DESCRIPTION
The ISO1050 is a galvanically isolated CAN transceiver that meets or exceeds the specifications of the ISO
11898 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 and
ISO1050LDW. 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). Designed for operation in
especially harsh environments, the device features cross-wire, overvoltage and loss of ground protection
from –27 V to 40 V and over-temperature shut-down, as well as –12 V to 12 V common-mode range.
The ISO1050 is characterized for operation over the ambient temperature range of –55°C to 105°C.
DW PACKAGE
GND1
GND1
1
2
16
15
Vcc2
GND2
3
4
5
6
7
8
14
13
12
nc
CANH
CANL
nc
11
10
9
RXD
TXD
GALVANIC ISOLATION
Vcc1
GND1
RXD
nc
nc
TXD
DUB PACKAGE
FUNCTION DIAGRAM
Vcc1
RXD
CANH
1
2
TXD
GND1
3
4
8
7
6
5
Vcc2
CANH
CANL
GND2
CANL
GND2
GND2
1
2
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PRODUCTION DATA information is current as of publication date.
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