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Table Of Contents

RXD

TXD

GND1

CC2

CANH

CANL

GND2

DW PACKAGE

CC1

GND1

GND2

GND1

RXD

TXD

CANH

CANL

FUNCTION DIAGRAM

TXD

RXD

CC2

CANH

GND2

DUB PACKAGE

CC1

GND1

CANL

GALVANIC ISOLATION

ISO1050

www.ti.com

SLLS983H –JUNE 2009–REVISED JUNE 2013

ISOLATED CAN TRANSCEIVER

Check for Samples: ISO1050

FEATURES

• Meets the Requirements of ISO11898-2 • I/O Voltage Range Supports 3.3V and 5V

Microprocessors

• 5000-V

RMS

Isolation (ISO1050DW)

• Typical 25-Year Life at Rated Working Voltage

• 2500-V

RMS

Isolation (ISO1050DUB)

(see Application Report SLLA197 and

• Failsafe Outputs

Figure 18)

• Low Loop Delay: 150ns (Typ), 210ns (Max)

• 50 kV/μs Typical Transient Immunity

APPLICATIONS

• Bus-Fault Protection of –27 V to 40 V

• Industrial Automation, Control, Sensors and

• Driver (TXD) Dominant Time Out Function

Drive Systems

• IEC 60747-5-2 (VDE 0884, Rev. 2) and

• Building and Climate Control (HVAC)

IEC 61010-1 Approved

Automation

• UL 1577 Double Protection Approved; See

• Security Systems

Regulatory Information Section

• Transportation

• IEC 60601-1 (Medical) and CSA Approved

• Medical

• 5 KV

RMS

Reinforced Insulation per TUV

• Telecom

Approved for EN/UL/CSA 60950-1

• CAN Bus Standards Such as CANopen,

(ISO1050DW)

DeviceNet, NMEA2000, ARINC825, ISO11783,

CAN Kingdom, CANaerospace

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 (SiO

) insulation barrier

that provides galvanic isolation of up to 5000 V

RMS

for ISO1050DW and 2500 V

RMS

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). 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.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (33 pages)

PAGE 1
ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 ISOLATED CAN TRANSCEIVER Check for Samples: ISO1050 FEATURES 1 • • • • • • • • • • • • Meets the Requirements of ISO11898-2 5000-VRMS Isolation (ISO1050DW) 2500-VRMS Isolation (ISO1050DUB) Failsafe Outputs Low Loop Delay: 150ns (Typ), 210ns (Max) 50 kV/μs Typical Transient Immunity Bus-Fault Protection of –27 V to 40 V Driver (TXD) Dominant Time Out Function IEC 60747-5-2 (VDE 0884, Rev.
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ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 FUNCTIONAL DESCRIPTION CAN BUS STATES The CAN bus has two states during operation: dominant and recessive. A dominant bus state, equivalent to logic low, is when the bus is driven differentially by a driver. A recessive bus state is when the bus is biased to a common mode of VCC / 2 via the high-resistance internal input resistors of the receiver, equivalent to a logic high.
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ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.com DRIVER AND RECEIVER FUNCTION TABLES Table 1. Driver Function Table INPUT (1) OUTPUTS DRIVEN BUS STATE TXD (1) CANH (1) CANL (1) L H L Dominant H Z Z Recessive H = high level, L = low level, Z = common mode (recessive) bias to VCC / 2. See Figure 1 and Figure 2 for bus state and common mode bias information. Table 2.
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ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 Fault is repaired and local node transmission capability restored TXD INPUT TXD fault stuck dominant: example PCB failure or bad software CAN BUS OUTPUT WITH TXD DTO TXD %XV ZRXOG EH ³VWXFN GRPLQDQW´ EORFNLQJ communication for the whole network but TXD DTO prevents this and frees the bus for communication after the time tTXD_DTO.
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ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.com CAN Bus Short Circuit Current Limiting The device has several protection features that limit the short circuit current when a CAN bus line is shorted. These include driver current limiting (dominant and recessive). The device has TXD dominant state time out to prevent permanent higher short circuit current of the dominant state during a system fault.
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ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 ABSOLUTE MAXIMUM RATINGS (1) (2) VALUE / UNIT (3) VCC1, VCC2 Supply voltage VI Voltage input (TXD) –0.5 V to 6 V VCANH or VCANH Voltage range at any bus terminal (CANH, CANL) –27 V to 40 V IO Receiver output current ESD –0.5 V to 6 V ±15 mA Bus pins and GND2 (4) ±4 kV All pins ±4 kV ±1.5 kV Human Body Model JEDEC Standard 22, Method A114-C.
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ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.
PAGE 9
ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 RECEIVER ELECTRICAL CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER VIT+ Positive-going bus input threshold voltage VIT– Negative-going bus input threshold voltage Vhys Hysteresis voltage (VIT+ – VIT–) VOH High-level output voltage with Vcc = 5V VOH High-level output voltage with Vcc1 = 3.
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ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.com PARAMETER MEASUREMENT INFORMATION Dominant » 3.5 V IO(CANH) VO (CANH) CANH II 0 or Vcc1 Recessive TXD GND1 VOD CANL RL IO(CANL) GND2 » 2.5 V VO(CANH) + VO(CANL) 2 » 1.5 V VOC VO (CANL) VI VO(CANH) VO(CANL ) GND1 GND2 Figure 4. Driver Voltage, Current and Test Definitions Figure 5. Bus Logic State Voltage Definitions 330 W ±1% CANH 0V TXD VOD 60 W ±1% + _ CANL -2 V < V test < 7 V GND2 330 W ±1% Figure 6.
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ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 PARAMETER MEASUREMENT INFORMATION (continued) CANH IO 3.5 V RXD V I 2.4 V 2 V CANL 1.5 V t pHL t pLH VI CL = 15 pF ± 20 % (SEE NOTE B) VO (SEE NOTE A) 1 .5 V 0.3 Vcc 1 V O 10 % tf tr GND 2 V OH 90 % 0.7 Vcc 1 V OL GND 1 A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 125 kHz, 50% duty cycle, tr ≤ 6 ns, tf ≤ 6 ns, ZO = 50Ω. B.
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ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.com 27 W ±1 % CANH TXD CANL 47 nF VI 27 W ±1 % V OC ± 20% GND 1 = V (CANH) + V (CANL) O O 2 GND 2 V OC(pp) V OC Figure 11. Peak-to-Peak Output Voltage Test Circuit and Waveform CANH VI TXD 60 W ±1% Vcc TXD Input CANL 50% 0V tloop 2 RXD RXD Output + VO _ t loop1 50% VOH 50% VOL 15 pF ± 20% GND1 Figure 12.
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ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 IOS (SS) I OS (P) I OS 15 s CANH TXD 0V 0 V or VCC 1 12 V CANL VI -12 V or 12 V VI 0V GND2 or 10 ms 0V VI -12 V Figure 14. Driver Short-Circuit Current Test Circuit and Waveforms VI VCC 2 CANH 0V TXD VCC2 CL 60 W ±1% VI VO RXD 0V t fs CANL + VO 2.7 V VOH 50% VOL 15pF ± 20% GND 1 NOTE: CL = 100pF includes instrumentation and fixture capacitance within ± 20%. Figure 15.
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ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.com C = 0.1 mF ± 1% 2.0 V VCC 1 VCC2 CANH C = 0.1 mF ±1% GND2 GND1 TXD 60 W S1 VOH or VOL CANL 0.8 V RXD VOH or VOL 1 kW GND 1 GND 2 CL = 15 pF (includes probe and jig capacitance) V TEST Figure 16. Common-Mode Transient Immunity Test Circuit CANH ISO1050 47nF 30 W Spectrum Analyzer 6.2 kW 10 nF 30 W TXD 500kbps CANL 6.2 kW Figure 17.
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ISO1050 www.ti.
PAGE 16
ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.com IEC SAFETY LIMITING VALUES safety limiting intends to prevent potential damage to the isolation barrier upon failure of input or output circuitry. A failure of the IO can allow low resistance to ground or the supply and, without current limiting dissipate sufficient power to overheat the die and damage the isolation barrier potentially leading to secondary system failures.
PAGE 17
ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 THERMAL INFORMATION (DW-16 PACKAGE) ISO1050 THERMAL METRIC (1) DW UNITS 16 θJA Junction-to-ambient thermal resistance θJCtop Junction-to-case (top) thermal resistance θJB Junction-to-board thermal resistance 47.7 ψJT Junction-to-top characterization parameter 14.4 ψJB Junction-to-board characterization parameter 38.2 θJCbot Junction-to-case (bottom) thermal resistance n/a (1) 76.
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ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.
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ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 TYPICAL CHARACTERISTICS RECESSIVE-TO-DOMINANT LOOP TIME vs FREE-AIR TEMPERATURE (across Vcc) DOMINANT-TO-RECESSIVE LOOP TIME vs FREE-AIR TEMPERATURE (across Vcc) 163 200 161 VCC1 = 3 V, VCC2 = 4.75 V 190 159 VCC1 = 3 V, VCC2 = 4.75 V 157 Loop Time - ns Loop Time - ns 180 VCC1 = 5 V, VCC2 = 5 V 170 160 155 VCC1 = 5.5 V, VCC2 = 5.25 V 153 151 149 150 140 -60 VCC1 = 5.5 V, VCC2 = 5.
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ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) 20 EMISSIONS SPECTRUM TO 10 MHz EMISSIONS SPECTRUM TO 50 MHz Figure 23. Figure 24.
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ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 APPLICATION INFORMATION SN6501 GND2 D2 VCC 4 8 3 2 7 6 TPS76350 1 IN OUT 3 2 1 D1 GND1 5 5 EN GND NC 4 ISO1050 1 2 4 3 Vdd L1 N RXD 3.3V TXD MCU PSU PE 0V 5 6 7 8 VCC1 VCC2 16 GND1 NC RXD NC CANH NC CANL TXD NC 14 13 12 11 15 GND1 GND1 GND2 Optional Bus protection function 9,10 DGND Protective Earth Chasis Ground Digital Ground Galvanic Isolation Barrier ISO Ground Figure 25.
PAGE 22
ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.com CAN TERMINATION The ISO11898 standard specifies the interconnect to be a single twisted pair cable (shielded or unshielded) with 120Ω characteristic impedance (ZO). Resistors equal to the characteristic impedance of the line should be used to terminate both ends of the cable to prevent signal reflections. Unterminated drop-lines (stubs) connecting nodes to the bus should be kept as short as possible to minimize signal reflections.
PAGE 23
ISO1050 www.ti.com SLLS983H – JUNE 2009 – REVISED JUNE 2013 REVISION HISTORY Changes from Original (June 2009) to Revision A Page • Added Typical 25-Year Life at Rated Working Voltage to Features ..................................................................................... 1 • Added LIFE EXPECTANCY vs WORKING VOLTAGE section ..........................................................................................
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ISO1050 SLLS983H – JUNE 2009 – REVISED JUNE 2013 www.ti.com Changes from Revision D (June 2011) to Revision E Page • Added device ISO1050L ....................................................................................................................................................... 1 • Changed (DW Package) in the Features list to (ISO1050DW) ............................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 3-Jun-2013 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Nov-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant ISO1050DUBR SOP DUB 8 350 330.0 24.4 10.9 10.01 5.85 16.0 24.0 Q1 ISO1050DWR SOIC DW 16 2000 330.0 16.4 10.75 10.7 2.7 12.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Nov-2013 *All dimensions are nominal Device Package Type Package Drawing ISO1050DUBR SOP DUB ISO1050DWR SOIC DW Pins SPQ Length (mm) Width (mm) Height (mm) 8 350 358.0 335.0 35.0 16 2000 367.0 367.0 38.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.