ISO1050DUB
Isolated CAN TransceiverThe ISO1050DUB is a isolated can transceiver from Texas Instruments. View the full ISO1050DUB datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
Manufacturer
Texas Instruments
Category
Isolated CAN Transceiver
Package
SOP (8)
Key Specifications
| Parameter | Value |
|---|---|
| Data Rate | 1 Mbps |
| Loop Delay | 150 ns (typical), 210 ns (maximum) |
| Isolation Voltage | 2500 VRMS |
| Package Dimensions | 9.5 mm × 10.4 mm |
| Transient Immunity | 50 kV/µs (typical) |
| Supply Voltage VCC1 | 3 V to 5.5 V |
| Supply Voltage VCC2 | 4.75 V to 5.25 V |
| Bus Fault Protection | -27 V to 40 V |
| Bus Common Mode Range | -12 V to 12 V |
| Max Power Dissipation | 200 mW |
| Communication Interface | CAN |
| Operating Ambient Temperature Range | -55°C to 105°C |
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 |
|---|---|---|
| ISO1050 | Texas Instruments | — |
| 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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