ISO1050

Part: ISO1050DUBR — Texas Instruments

Type: Isolated CAN Transceiver

Description: Galvanically isolated ISO11898-2 CAN transceiver with 2500 VRMS isolation (DUB package), signaling rates up to 1 Mbps, 150 ns typical loop delay, and -27 V to 40 V bus-fault protection.

Operating Conditions:

• Supply voltage: VCC1 3–5.5 V; VCC2 4.75–5.25 V
• Operating temperature: -55 to 105 °C (ambient)
• Bus pin voltage (separate or common mode): -12 to 12 V
• Junction temperature: -55 to 125 °C

Absolute Maximum Ratings:

• Max supply voltage: 6 V (VCC1 and VCC2)
• Bus pin voltage (CANH, CANL): -27 to 40 V
• RXD output current: ±15 mA
• Max junction temperature: 150 °C
• Storage temperature: -65 to 150 °C

Key Specs:

• Signaling rate: up to 1 Mbps
• Loop delay: 150 ns typical, 210 ns maximum
• Transient immunity: 50 kV/μs typical
• TXD high-level input voltage: 2–5.25 V; low-level input 0–0.8 V
• Differential input voltage: -7 to 7 V
• Driver output current: -70 mA (high) / 70 mA (low)
• Receiver output current: -4 mA (high) / 4 mA (low)
• Thermal shutdown: 190 °C

Features:

• Meets ISO11898-2 requirements
• 2500 VRMS isolation (ISO1050DUB); 5000 VRMS for ISO1050DW
• Fail-safe outputs
• Driver (TXD) dominant time-out function
• I/O voltage range supports 3.3 V and 5 V microprocessors
• Bus-fault protection of -27 V to 40 V; overtemperature shutdown
• -12 V to 12 V common-mode range
• VDE (DIN EN IEC 60747-17), UL 1577 and CSA approvals
• 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 (DUB)
• SOIC (16), 10.3 mm × 10.3 mm (DW)

• 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 )

• 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

ISO1050

SLLS983L - JUNE 2009 - REVISED OCTOBER 2023

Figure 5-2. 8-Pin DUB Package Top View

Figure 5-1. 16-Pin DW Package Top View

Table 5-1. Pin Functions

Typical specifications are at VCC1 = 3.3V, VCC2 = 5V, Min/Max are over recommended operating conditions (unless otherwise noted)

Typical specifications are at VCC1 = 3.3V, VCC2 = 5V, Min/Max are over recommended operating conditions (unless otherwise noted)

Over operating free-air temperature range (unless otherwise noted) (1) (2)

• (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

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.