ISO1050
Isolated CAN TransceiverThe ISO1050 is a isolated can transceiver from Texas Instruments. View the full ISO1050 datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
Texas Instruments
Category
Isolated CAN Transceiver
Overview
Part: ISO1050 — Texas Instruments
Type: Isolated CAN Transceiver
Description: The ISO1050 is a galvanically isolated CAN transceiver that meets ISO11898-2, providing up to 5000 V RMS isolation, supporting signaling rates up to 1 Mbps, and featuring bus-fault protection from -27 V to 40 V.
Operating Conditions:
- I/O voltage range: 3.3 V and 5 V microprocessors
- Operating temperature: -55°C to 105°C
- Signaling rate: up to 1 Mbps
Absolute Maximum Ratings:
- Bus-fault protection: -27 V to 40 V
Key Specs:
- Isolation voltage (ISO1050DW): 5000 V RMS
- Isolation voltage (ISO1050DUB): 2500 V RMS
- Loop delay (typical): 150 ns
- Loop delay (maximum): 210 ns
- Transient immunity (typical): 50 kV/μs
- Common-mode range: -12 V to 12 V
Features:
- Meets ISO11898-2 requirements
- Fail-safe outputs
- Driver (TXD) dominant time-out function
- Safety-related certifications (VDE, UL, CSA, TUV, CQC)
- Typical 25-year life at rated working voltage
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
Package:
- SOP (8): 9.5 mm × 10.4 mm
- SOIC (16): 10.3 mm × 10.3 mm
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 )
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
SLLS983L - JUNE 2009 - REVISED OCTOBER 2023
Pin Configuration
Figure 5-2. 8-Pin DUB Package Top View
Figure 5-1. 16-Pin DW Package Top View
Table 5-1. Pin Functions
| PIN | PIN | PIN | TYPE | DESCRIPTION |
|---|---|---|---|---|
| NAME | DW | DUB | TYPE | DESCRIPTION |
| V CC1 | 1 | 1 | Supply | Digital-side supply voltage (3 to 5.5 V) |
| GND1 | 2 | - | Ground | Digital-side ground connection |
| RXD | 3 | 2 | O | CAN receive data output (LOW for dominant and HIGH for recessive bus states) |
| NC | 4 | - | NC | No connect |
| NC | 5 | - | NC | No connect |
| TXD | 6 | 3 | I | CAN transmit data input (LOW for dominant and HIGH for recessive bus states) |
| GND1 | 7 | 4 | Ground | Digital-side ground connection |
| GND1 | 8 | - | Ground | Digital-side ground connection |
| GND2 | 9 | 5 | Ground | Transceiver-side ground connection |
| GND2 | 10 | - | Ground | Transceiver-side ground connection |
| NC | 11 | - | NC | No connect |
| CANL | 12 | 6 | I/O | Low-level CAN bus line |
| CANH | 13 | 7 | I/O | High-level CAN bus line |
| NC | 14 | - | NC | No connect |
| GND2 | 15 | - | Ground | Transceiver-side ground connection |
| V CC2 | 16 | 8 | Supply | Transceiver-side supply voltage (5 V) |
Electrical Characteristics
Typical specifications are at VCC1 = 3.3V, VCC2 = 5V, Min/Max are over recommended operating conditions (unless otherwise noted)
| PARAMETER | PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|
| SUPPLY CHARACTERISTICS | SUPPLY CHARACTERISTICS | SUPPLY CHARACTERISTICS | SUPPLY CHARACTERISTICS | SUPPLY CHARACTERISTICS | SUPPLY CHARACTERISTICS | SUPPLY CHARACTERISTICS |
| I CC1 | Supply current Side 1 | V I = 0 V or V CC1 , V CC1 = 3.3 V | 1.8 | 3.6 | mA | |
| I CC1 | Supply current Side 1 | V I = 0 V or V CC1 , V CC1 = 5.0 V | 2.3 | 3.6 | mA | |
| I CC2 | Supply current Side 2 | V I = 0 V, bus dominant, R L = 60 Ω | 52 | 73 | mA | |
| I CC2 | Supply current Side 2 | V I = V CC1 | 8 | 12 | mA | |
| DRIVER ELECTRICAL CHARACTERISTICS | DRIVER ELECTRICAL CHARACTERISTICS | DRIVER ELECTRICAL CHARACTERISTICS | DRIVER ELECTRICAL CHARACTERISTICS | DRIVER ELECTRICAL CHARACTERISTICS | DRIVER ELECTRICAL CHARACTERISTICS | DRIVER ELECTRICAL CHARACTERISTICS |
| V O(DOM) | Bus output voltage(Dominant), CANH | See Figure 7-1 and Figure 7-2, V I = 0 V, R L = 60 Ω | 2.9 | 3.5 | 4.5 | V |
| Bus output voltage(Dominant), CANL | See Figure 7-1 and Figure 7-2, V I = 0 V, R L = 60 Ω | 0.8 | 1.2 | 1.78 | V | |
| V O(REC) | Bus output voltage(recessive), CANH and CANL | See Figure 7-1 and Figure 7-2, V I = 2 V, R L = 60 Ω | 2.0 | 2.3 | 3.0 | V |
| V OD(DOM) | Differential output voltage(dominant) | See Figure 7-1 and Figure 7-2, V I = 0 V, R L = 60 Ω | 1.5 | 3.0 | V | |
| V OD(DOM) | See Figure 7-1 and Figure 7-2, V I = 0 V, R L = 45 Ω, VCC > 4.8 V | 1.4 | 3.0 | V | ||
| V OD(REC) | Differential output voltage(recessive) | See Figure 7-1 and Figure 7-2, V I = 3 V, R L = 60 Ω | -120.0 | 12.0 | mV | |
| V I = 3 V, No Load | -500.0 | 50.0 | mV | |||
| V OC(DOM) | Common-mode output voltage (Dominant) | See Figure 7-8 | 2 | 2.3 | 3.0 | V |
| V OC(pp) | Peak-to-peak common-mode output voltage | See Figure 7-8 | 0.3 | V | ||
| I IH | High level input leakage current | V I = 2 V | 5 | μA | ||
| I IL | Low level input leakage current | V I = 0.8 V | -5 | μA | ||
| I O(off) | Power-off TXD leakage current | V CC1 , V CC2 at 0 V, TXD = 5 V | 10 | μA | ||
| I OS(ss) | Short circuit current steady state output | See Figure 7-11, CANH = -12 V, CANL Open | -105 | -72 | mA | |
| See Figure 7-11, VCANH = 12 V, CANL Open | 0.36 | 6.2 | mA | |||
| current, dominant | See Figure 7-11, VCANL =-12 V, CANH Open | -1 | -0.5 | mA | ||
| See Figure 7-11, VCANL = 12 V, CANH Open | 71 | 105 | mA | |||
| CMTI | Common-mode transient immunity | See Figure 7-13, V I = V CC or 0 V | 25 | 50 | kV/us | |
| RECEIVER ELECTRICAL CHARACTERISTICS | RECEIVER ELECTRICAL CHARACTERISTICS | RECEIVER ELECTRICAL CHARACTERISTICS | RECEIVER ELECTRICAL CHARACTERISTICS | RECEIVER ELECTRICAL CHARACTERISTICS | RECEIVER ELECTRICAL CHARACTERISTICS | RECEIVER ELECTRICAL CHARACTERISTICS |
| V IT+ | Positive-going bus input threshold voltage | 750 | 900.0 | mV | ||
| V IT- | Negative-going bus input threshold voltage | See Table 1 | 500.0 | 650 | mV | |
| V HYS | Hysteresis voltage for differential input threshold | 150 | mV | |||
| V OH | High level output voltage with Vcc = 5 V | I O = -4 mA, See Figure 7-6 | Vcc - 0.8 | 4.6 | V | |
| I O = -20 μA, See Figure 7-6 | Vcc - 0.1 | 5 | V | |||
| V | High level output voltage with Vcc1 = 3.3 | I O = 4 mA, See Figure 7-6 | Vcc - 0.8 | 3.1 | V | |
| OH | V | I O = 20 μA, See Figure 7-6 | Vcc - 0.1 | 3.3 | V | |
| V OL | Low level output voltage | I O = 4 mA, See Figure 7-6 | 0.2 | 0.4 | V | |
| I O = 20 μA, See Figure 7-6 | 0 | 0.1 | V |
Typical specifications are at VCC1 = 3.3V, VCC2 = 5V, Min/Max are over recommended operating conditions (unless otherwise noted)
| PARAMETER | PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|
| C I | Input capacitance to ground (CANH or CANL) | TXD = 3 V, V I = 0.4 sin (4e6pi*t) + 2.5 V | 12 | pF | ||
| C ID | Differential input capacitance | TXD = 3 V, V I = 0.4 sin (4e6pi*t) | 8 | pF | ||
| R ID | Differential input resistance | TXD = 3 V | 40 | 90 | kΩ | |
| R IN | Input resistance (CANH or CANL) | TXD = 3 V | 20 | 45 | kΩ | |
| R IN(M) | Input resistance matching: (1 - R IN(CANH) / R IN(CANL) ) x 100% | V CANH = V CANL | -3 | 3 | % | |
| CMTI | Common-mode transient immunity | See Figure 7-13, V I = V CC or 0 V | 25 | 50 | kV/us |
Absolute Maximum Ratings
Over operating free-air temperature range (unless otherwise noted) (1) (2)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| V CC1 | Supply voltage, side 1 | -0.5 | 6 | V |
| V CC2 | Supply voltage, side 2 | -0.5 | 6 | V |
| V IO | Logic input voltage range (TXD) | -0.5 | V CC1 +0.5 (3) | V |
| V BUS | Voltage on bus pins (CANH, CANL) | -27 | 40 | V |
| I O | Output current on RXD pin | -15 | 15 | mA |
| T J | Junction temperature | -55 | 150 | °C |
| T STG | Storage temperature | -65 | 150 | °C |
- (2) All voltage values except differential I/O bus voltages are with respect to the local ground terminal (GND1 or GND2) and are peak voltage values.
(3) Maximum voltage must not exceed 6 V
Recommended Operating Conditions
| MIN | TYP | MAX | UNIT | ||
|---|---|---|---|---|---|
| V CC1 | Supply Voltage, Side 1 | 3 | 5.5 | V | |
| V CC2 | Supply Voltage, Side 2 | 4.75 | 5.25 | V | |
| V I or V IC | Voltage at bus pins (separately or common mode) | -12 | 12 | V | |
| V IH | High-level input voltage (TXD) | 2 | 5.25 | V | |
| V IL | Low-level input voltage (TXD) | 0 | 0.8 | V | |
| V ID | Differential input voltage | -7 | 7 | V | |
| I OH | High-Level Output current, Driver | -70 | mA | ||
| I OH | High-Level Output current, Receiver | -4 | mA | ||
| I OL | Low-level output current, Driver | 70 | mA | ||
| I OL | Low-level output current, Receiver | 4 | mA | ||
| T A | Operating ambient temperature | -55 | 105 | °C | |
| T J | Junction temperature | -55 | 125 | °C | |
| T Jshutdown | Thermal shutdown temperature | 190 | 190 | 190 | °C |
Thermal Information
| ISO1050 | ISO1050 | ||
|---|---|---|---|
| THERMAL METRIC (1) | THERMAL METRIC (1) | DW | DUB |
| 16 PINS | 8 PINS | ||
| R ΘJA | Junction-to-ambient thermal resistance | 76.4 | 84.3 |
| R ΘJC(top) | Junction-to-case (top) thermal resistance | 41 | 63.2 |
| R ΘJB | Junction-to-board thermal resistance | 47.7 | 43 |
| Ψ JT | Junction-to-top characterization parameter | 17.2 | 27.4 |
| Ψ JB | Junction-to-board characterization parameter | 38.2 | 42.7 |
| R ΘJC(bot) | Junction-to-case (bottom) thermal resistance | n/a | n/a |
Typical Application
ISO1050 can be used with other components from TI such as a microcontroller, a transformer driver, and a linear voltage regulator to form a fully isolated CAN interface.
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| ISO1050DUB | Texas Instruments | SOP (8) |
| ISO1050DUBR | Texas Instruments | SOP-8 |
| ISO1050DUBR.A | Texas Instruments | — |
| ISO1050DW | Texas Instruments | — |
| ISO1050DW-ONLY | Texas Instruments | — |
| ISO1050DWR | Texas Instruments | — |
| ISO1050DWR.A | Texas Instruments | — |
| ISO1050DWRG4 | Texas Instruments | — |
| ISO1050DWRG4.A | Texas Instruments | — |
| ISO1050L | Texas Instruments | — |
| ISO1050LDW | Texas Instruments | — |
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